LORD ABBETT DEVELOPING GROWTH FUND INC /NEW/
485BPOS, 1998-05-29
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                                                     1933 Act File No. 2-62797
                                                     1940 Act File No. 811-2871


                        SECURITIES & EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM N-1A

           REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 [X]
                       Post-Effective Amendment No. 24 [X]
                                       And

           REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT [X]
                                     OF 1940

                       Post-Effective Amendment No. 23 [X]


                    LORD ABBETT DEVELOPING GROWTH FUND, INC.
                Exact Name of Registrant as Specified in Charter

                  767 FIFTH AVENUE, NEW YORK, N. Y. 10153-0203
                      Address of Principal Executive Office

                  Registrant's Telephone Number (212) 848-1800

                         Thomas F. Konop, Vice President
                     767 FIFTH AVENUE, NEW YORK, N. Y. 10153
                      Name and Address of Agent for Service

It is proposed that this filing will become effective (check  appropriate box)

              immediately on filing pursuant to paragraph (b)(1)(ix) of Rule 485
- ----------

     X   on (June 1, 1998) pursuant to paragraph (b) of Rule 485
- ----------

         60 days after filing pursuant to paragraph (a) (1) of Rule 485
- ----------

         on (date) pursuant to paragraph (a) (1) of Rule 485
- ----------

         75 days after filing pursuant to paragraph (a) (2) of rule 485
- ----------

         on (date) pursuant to paragraph (a) (2) of rule 485
- ----------
If appropriate, check the following box:

         This  post-effective  amendment  designates a new effective  date for a
         previously filed post-effective amendment.
- ----------
                    LORD ABBETT DEVELOPING GROWTH FUND, INC.
                                    FORM N-1A
                              Cross Reference Sheet
                         Post-Effective Amendment No. 24
                            Pursuant to Rule 481 (a)


Form N-1A                      Location In Prospectus or
Item No.                       Statement of Additional Information

1                              Cover Page
2                              Fee Table
3 (a)                          Financial Highlights; Performance
3 (b)                          N/A
3 (c)                          Performance
3 (d)                          N/A
4 (a) (i)                      Cover Page
4 (a) (ii)                     Investment Objective; How We Invest
4 (b) (c)                      How We Invest
5 (a)                          Our Management
5 (b)                          Our Management; Back Cover Page
5 (c)                          Our Management
5 (d)                          N/A
5 (e)                          Back Cover Page
5 (f)                          Our Management
5 (g)                          N/A
5 A                            Performance
6 (a)                          Cover Page
6 (b) (c) (d)                  N/A
6 (e)                          Cover Page
6 (f) (g)                      Dividends, Capital Gains
                               Distributions and Taxes
6 (h)                          N/A
7 (a)                          Back Cover Page
7 (b) (c) (d)
   (e) (f)                     Purchases
Form N-1A                      Location In Prospectus or
Item No.                       Statement of Additional Information

8                              Redemptions
9                              N/A
10                             Cover Page
11                             Cover Page - Table of Contents
12                             N/A
13                              Investment Objective and Policies
14                             Directors and Officers
15 (a) (b)                     N/A
15 (c)                         Directors and Officers
16 (a) (i)                     Investment Advisory and Other Services
16 (a) (ii)                    Directors and Officers
16 (a) (iii)                   Investment Advisory and Other Services
16 (b)                         Investment Advisory and Other Services
16 (c) (d) (e)
   (g)                         N/A
16 (f)                         Purchases, Redemptions; Investment Advisory and 
                               Other Services
                               and Shareholder Services
16 (h)                         Investment Advisory and Other Services
16 (i)                         N/A

17 (a)                         Portfolio Transactions
17 (b)                         N/A
17 (c)(d)                      Portfolio Transactions
17 (e)                         N/A
18 (a)                         Cover Page
18 (b)                         N/A
19 (a) (b)                     Purchases, Redemptions
                               and Shareholder Services
19 (c)                         N/A
20                             Taxes
21 (a)                         Purchases, Redemptions
                               and Shareholder Services
21 (b) (c)                     N/A
22 (a)                         N/A
22 (b)                         Past Performance
23                              Financial Statements



<PAGE>

LORD ABBETT
DEVELOPING GROWTH FUND, INC.

PROSPECTUS
June 1, 1998


This  Prospectus  sets  forth  concisely  the  information   about  Lord  Abbett
Developing  Growth Fund,  Inc.  ("we" or the "Fund") that you should know before
investing. Please read this Prospectus before investing and retain it for future
reference.  The Fund has five classes of shares.  Only four of these classes are
offered by this  Prospectus.  These classes of shares,  designated Class A, B, C
and P, provide investors with different  purchasing options. See "Purchases" for
a description of these options.

The Fund seeks  long-term  growth of capital  through a diversified and actively
managed portfolio  consisting of developing growth companies,  many of which are
traded over the counter. In pursuing this objective,  we invest primarily in the
common  stocks of  companies  with  long-range  growth  potential,  particularly
smaller companies  considered to be in the developing growth phase. There can be
no assurance that the objective will be achieved.  Volatile price  movements can
be expected.

The Statement of Additional  Information  dated June 1, 1998 has been filed with
the Securities and Exchange  Commission  and is  incorporated  by reference into
this Prospectus. You may obtain it, without charge, by writing to the Fund or by
calling  800-874-3733  and asking for "Part B of the Prospectus -- the Statement
of Additional Information."

Shaded terms are defined in the Glossary of Terms.

These  securities  have not been approved or  disapproved  by the Securities and
Exchange  Commission or any state  securities  commission nor has the Securities
and  Exchange  Commission  or any state  securities  commission  passed upon the
accuracy or adequacy of this prospectus. Any representation to the contrary is a
criminal offense.

Mutual Fund shares are not deposits or obligations of, or guaranteed or endorsed
by,  any  bank.  Shares  are  not  insured  by  the  Federal  Deposit  Insurance
Corporation,  the Federal Reserve Board,  or any other agency.  An investment in
the Fund involves risks, including the possible loss of principal.


TABLE OF CONTENTS                  PAGE
How We Invest                       2
Risk Factors                        2
Portfolio Management                2
Investor Expenses                   2
Financial Highlights                3
Purchases                           4
Opening Your Account                6
Shareholder Services                6
Redemptions                         7
Dividends and Capital Gains         8
Our Management                      8
Fund Performance                    8
Investment Policies, Risks and Limits   9
Sales Compensation                  9
Glossary of Terms                   9

Lord, Abbett & Co.
Investment Management
A Tradition of Performance Through Disciplined Investing


The General Motors Building
767 Fifth Avenue - New York - New York o10153
Broker-Dealer Division: (800) 426-1130
Financial Advisers Division:  (888) 522-2388

<PAGE>
HOW WE INVEST
Normally,  we invest primarily in the common stocks of companies with long-range
growth  potential,  particularly  smaller  companies  considered  to be  in  the
developing  growth  phase.  This  phase is a period of swift  development,  when
growth occurs at a rate rarely equaled by established  companies in their mature
years. We look for companies in this phase and, under normal circumstances, will
invest  at least  65% of our  total  assets  in  securities  of such  companies.
Developing growth companies are almost always small, often young (in relation to
the large  companies which make up the Standard & Poor's 500  Stock-Index),  and
their shares are frequently  traded over the counter.  Having,  in  management's
view,  passed the pitfalls of the formative years,  these companies are now in a
position  to grow  rapidly in their  market.  However,  the  actual  growth of a
company cannot be foreseen and it may be difficult to determine in which phase a
company is presently situated. In addition, we may invest in companies which are
in their formative years.
          See "Investment Policies, Risks and Limits."


RISK FACTORS
An investment in the Fund is not intended as a complete investment program.  The
value of your investment  will fluctuate in response to stock market  movements.
Moreover,  because stocks of developing  growth  companies  entail more risk and
have more volatile prices than those of mature  companies,  the Fund's net asset
value per share is likely to experience above-average fluctuations. In addition,
the Fund will not provide significant current income.

PORTFOLIO MANAGEMENT
Stephen J.  McGruder,  Executive  Vice  President of the Fund,  serves as Senior
Portfolio  Manager  and has done so since he joined  Lord,  Abbett & Co.  ("Lord
Abbett") in 1995.  Prior to joining  Lord  Abbett,  Mr.  McGruder  served  since
October of 1988 as Vice President of Wafra Investment  Advisory Group, a private
investment  company.  Mr.  McGruder is assisted by, and may delegate  management
duties to, other Lord Abbett employees who may be Fund officers.

Mr. McGruder has over 29 years of investment experience.

INVESTOR EXPENSES
The expenses  shown  below  are based on  historical  expenses  adjusted  to
reflect current fees. Future expenses may be different than those shown.
                                        Class A Class B Class C Class P
Shareholder Transaction Expenses
Maximum Sales Charge on Purchases
(as a % of offering price)              5.75%   None    None    None
Deferred Sales Charge (See "Purchases") None    5.00%   1.00%   None
Annual Fund Operating Expenses (as a % of average net assets) 
Management Fees                         .56%    .56%    .56%    .56% 
(See "Our  Management")
12b-1 Fees(1)                           .26%    1.00%   1.00%   .45%
Other Expenses                          .24%     .24%    .24%   .24%
  (See "Our Management")
Total Operating Expenses               1.06%    1.80%   1.80%   1.25%


EXAMPLE  Assume  an  average  annual  return of 5% and no change in the level of
expenses.   For  a  $1,000  investment  with  all  dividends  and  distributions
reinvested, you would have paid the following total expenses,  assuming you sold
your shares at the end of each time period indicated.

Share Class                             1 year 3 years 5 years 10 years
Class A shares                           $68     $89     $113     $180
Class B shares(2)                        $68     $87     $117     $192
Class C shares                           $29     $57     $97      $212
Class P shares                           $13     $40     $69      $151

You would pay the following expenses on the same investment, 
assuming you kept your shares:

Class A shares                          $68     $89     $113     $180
Class B shares(2)                       $18     $57     $97      $192
Class C shares                          $18     $57     $97      $212
Class P shares                          $13     $40     $69      $151
This example is for comparison and is not a representation  of the Fund's actual
expenses and returns, either past or present.


(1)Because of the 12b-1 fee, long-term shareholders may indirectly pay more than
the  equivalent of the maximum  permitted  front-end  sales  charge. 
(2)Class B
shares will automatically convert to Class A shares on the eighth anniversary of
your original purchase of Class B shares.

<PAGE>

FINANCIAL  HIGHLIGHTS The following  table has been audited by Deloitte & Touche
LLP,  independent  accountants,  in  connection  with their  annual audit of the
Fund's  Financial  Statements,  whose  report may be obtained  on request.  Call
800-874-3733  and ask for the Lord Abbett  Developing  Growth Fund,  Inc.'s 1998
annual report.

<TABLE>

Per Class A Share+ Operating                           Year Ended January 31,
Performance:                             1998    1997    1996    1995    1994    1993    1992    1991    1990    1989
<S>                                     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>  
Net asset value, beginning of year      $12.80  $11.49  $9.58   $10.65  $10.11  $10.86  $7.98   $6.96   $7.19   $6.50
Income from investment operations
Net investment income (loss)            (.10)a)  (.03)   (.02)   (.04)   (.05)   (.02)   .02     .01(a)  .01(a)  .03(a)
Net realized and unrealized
gain (loss) on securities                3.16    3.12    4.80    (.22)   1.62    (.24)   3.28    1.01    (.02)   .66
Total from investment operations         3.06    3.09    4.78    (.26)   1.57    (.26)   3.30    1.02    (.01)   .69
Distributions
Dividends from net investment income    .---    .----   .---    ---     .---     (.02)   (.02)   ---     (.03)   ---    
Distributions from net realized gain    (1.59)  (1.78)  (2.87)  (.81)   (1.03)   (.47)   (.40)   ---     (.19)   ---
Net asset value, end of year            $14.27  $12.80  $11.49  $9.58   $10.65  $10.11  $10.86  $7.98   $6.96   $7.19
Total Return(b)                         24.38%  28.35%  50.22%  (2.74)% 16.41%  (2.31)% 41.53%  14.66%  (.38)%  10.62%
Ratios to Average Net Assets:
Expenses                                 1.06%   1.10%   1.03%   1.31%   1.34%   1.31%   1.14%   1.24%   1.13%   1.08%
Net investment income                   (.72)%  (.67)%  (.52)%  (.38)%  (.51)%   (.25)%   .26%    .20%    .08%    .37%
        
</TABLE>
                                   Class B Shares      Class B Shares
Per Class Share Operating          Year Ended          August 1, 1996(d) to
Performance                        January 31, 1998    January 31, 1997

Net Asset Value beginning of period     $12.75              $12.14
Net investment income (loss)             (.20)(a)           (.05)
Net realized and unrealized
gain on securities                      3.14                2.28
Total from investment operations        2.94                2.23
Distributions
Dividends from net realized gain        (1.57)              (1.62)
Net asset value, end of period          (14.12)             $12.75
Total Return(b)                         23.48%              19.43%(c)
Ratios to Average Net Assets:           
Expenses                                1.76%               .93%(c)
Net investment (loss)                   (1.39)%             (.73)%(c)


                                   Class C Shares      Class C Shares
Per Class Share Operating          Year Ended          August 1, 1996(d) to
Performance                        January 31, 1998    January 31, 1997

Net Asset Value beginning of period     $12.75              $12.14
Net investment income (loss)             (.19)(a)           (.05)
Net realized and unrealized
gain on securities                      3.14                2.28
Total from investment operations        2.95                2.23
Distributions
Dividends from net realized gain        (1.57)              (1.62)
Net asset value, end of period          (14.13)             $12.75
Total Return(b)                         23.55%              19.43%(c)
Ratios to Average Net Assets:           
Expenses                                1.71%               .93%(c)
Net investment (loss)                   (1.34)%             (.73)%(c)
          


                                        Class P Shares      
Per Class Share Operating               January 5, 1998(d) to          
Performance                             January 31, 1998    

Net Asset Value beginning of period     $14.38              
Net investment income (loss)             (.01)(a)           
Net realized and unrealized
gain on securities                      (.11)               
Total from investment operations        (.12)                
Distributions
Dividends from net realized gain          -              
Net asset value, end of period          (14.26)             
Total Return(b)                          (.80)%              
Ratios to Average Net Assets:           
Expenses                                .08%(c)%               
Net investment (loss)                   (.05)%(c)             
          


Supplemental Data                     Year Ended January 31,
For All Classes:                 1998    1997       1996      1995       1994   
Net assets, end of year (000)  $553,086  $330,358   197,602   $127,579  143,693 
Portfolio turnover rate        33.60%    42.35%     50.12%     17.57%   16.29%  
Average commissions per share
paid on equity transactions     $.049    $.046      $.053      $.059     n/a    


Supplemental Data                     Year Ended January 31,
For All Classes:                 1993    1992       1991      1990       1989   
Net assets, end of year (000)  $151,068  $156,932   $117,786  $119,836 $163,676 
Portfolio turnover rate       17.22%    12.62%      12.76%    14.57%  20.20%
Average commissions per share
paid on equity transactions   n/a       n/a         n/a     n/a       n/a       

+ The Fund had only one class of shares prior to August 1, 1996.  That class of
shares is now  designated  Class A shares.  

(a)Calculated  using average  shares
outstanding during the period.
(b)Total return does not consider the effects of sales loads.
(c) Not annualized.
(d) Commencement of operations of Class shares.
   See Notes to Financial Statements.
<PAGE>

PURCHASES
This  Prospectus  offers  four  classes  of  shares:  Class A, B, C and P. These
classes of shares represent  investments in the same portfolio of securities but
are subject to different expenses.  Our shares are continuously offered based on
the per  share  net asset  value  ("NAV")  next  computed  after we accept  your
purchase  order  submitted  in proper  form,  plus a front-end  sales  charge as
described below, in the case of the Class A shares and without a front-end sales
charge, in the case of the Class B, C and P shares as described below. Investors
should read this section carefully to determine which class of shares represents
the best investment option for their particular situation.


Class A
o       Normally offered with a front-end sales charge.
o       Lower annual expenses than Class B and Class C shares.

Class B
o       No front-end sales charge.
o       Higher annual expenses than Class A shares.
o       A contingent deferred sales charge is applied to shares
        sold prior to the sixth anniversary of purchase.
o       Automatically convert to Class A shares after eight years.

Class C
o       No front-end sales charge.
o       Higher annual expenses than Class A shares.
o A contingent  deferred sales charge usually is applied to shares sold prior to
the first anniversary of purchase.

Class P shares, available to a limited number of shareholders,  are described on
the next page.

It may not be suitable  for you to place a purchase  order for Class B shares of
$500,000 or more or a purchase  order for Class C shares of  $1,000,000 or more.
You should discuss pricing options with your investment  professional.  For more
information, see "Alternative Sales Arrangements" in the Statement of Additional
Information.

CLASS A SHARES. Front-end sales charges are as
follows:
                                                                   To Compute
                As a % of            As a % of                    Offering Price
                Offering             Your                         Divide
                 Price               Investment                   NAV by
Your  Investment   
Less than $50,000     5.75%             6.10%                    .9425
$50,000 to $99,999    4.75%             4.99%                    .9525 
$100,000 to $249,999  3.75%             3.90%                    .9625
$250,000 to $499,999  2.75%             2.83%                    .9725 
 $500,000 to $999,999 2.00%             2.04%                    .9800
$1,000,000 over          No Sales Charge                         1.0000


REDUCING
YOUR CLASS A FRONT-END  SALES  CHARGES.  There are several  ways you can
        qualify for a lower sales charge when  purchasing  Class A shares if you
        inform the Fund that you are eligible at the time of purchase: 

o Rights of  Accumulation -- a Purchaser can add the share value of any Eligible
Fund  already  owned to the  amount of the next  purchase  of Class A shares for
purposes of calculating the sales charge.
       
 o Statement of Intention -- a Purchaser  can purchase  Class A shares of
any Eligible Fund over a 13-month period and receive the same sales charge as if
all shares had been purchased at once. Shares purchased through  reinvestment of
distributions  are not included.  

For more  information on eligibility for these
privileges, read the applicable sections in the attached application.

CLASS A SHARE PURCHASES WITHOUT A FRONT-END SALES CHARGE.  Class A shares may be
purchased without a front-end sales charge under the following circumstances.
1Purchases of $1 million or more.*
2 Purchases by Retirement  Plans with at least*
100 eligible employees.
3 Purchases under a Special Retirement Wrap Program.*
4 Purchases  made with  dividends and  distributions  on Class A shares of
another Eligible Fund.
5 Purchases  representing repayment under the loan feature of the
Lord  Abbett-sponsored  prototype 403(b) plan for Class A shares. 
6 Employees of any  consenting  securities  dealer  having a sales  agreement
with Lord Abbett Distributor. 
7 Purchases  under a Mutual Fund Wrap-Fee  Program. 
8 Lord Abbett Consultants/Advisers.  
9  Employees  of  our  shareholder  servicing  agent. 
10 Employees of any national  securities  trade  organization  to which Lord
Abbett belongs.  
11  Employees  of Lord  Abbett and our  Directors/Trustees  (active or
retired),  their spouses,  including surviving spouses and other family members.
12 Trustees or  custodians  of any pension or profit  sharing  plan,  or payroll
deduction  IRA for the  persons  mentioned  in 6, 9, 10 and 11  above. 

*May be subject to a CDSC.

<PAGE>

CONTINGENT  DEFERRED SALES CHARGES ("CDSC").  The CDSC,  regardless of class, is
not charged on shares  acquired  through  reinvestment  of  dividends or capital
gains  distributions and is charged on the original purchase cost or the current
market  value of the  shares  being  sold,  whichever  is  lower.  In  addition,
repayment of loans under  Retirement  Plans and 403(b) plans will constitute new
sales for purposes of assessing the CDSC.

CLASS A SHARE  CDSC.  If you buy  Class A shares  under one of the  starred  (O)
categories  listed above  subject to a dealer's  concession  of up to 1% and you
redeem any of the Class A shares  within 24 months  after the month in which you
initially  purchased  such shares,  the Fund normally will collect a CDSC of 1%.

The  Class  A  share  CDSC   generally   will  be  waived  under  the  following
circumstances.
o       Benefit payments such as Retirement Plan loans, hardship withdrawals, 
death,   disability,   retirement,   separation   from  service  or  any  excess
distribution under Retirement Plans (documentation may be required).
o       Redemptions continuing as investments in another fund
        participating in a Special Retirement Wrap Program.

CLASS B SHARE CDSC. The CDSC for Class B shares  normally  applies if you redeem
your shares before the sixth  anniversary  of their initial  purchase.  The CDSC
varies  depending  on how long you own your shares  according  to the  following
schedule.

                                   Contingent Deferred
Anniversary(1)                     Sales Charge on
of the Day on                      Redemptions
Which the Purchase                 (As % of Amount
Order Was Accepted                 Subject to Charge)

On      Before
        1st                        5.0%
1st     2nd                        4.0%
2nd     3rd                        3.0%
3rd     4th                        3.0%
4th     5th                        2.0%
5th     6th                        1.0%
on or after the                    None
6th anniversary(2)
(1)Anniversary is the 365th day subsequent to a purchase or a prior anniversary.
(2)Class  B shares  will  automatically  convert to Class A shares on the eighth
anniversary of the purchase of Class B shares.


The  Class  B  share  CDSC   generally   will  be  waived  under  the  following
circumstances.
o Benefit payments such as Retirement Plan loans, hardship  withdrawals,  death,
disability, retirement, separation from service or any excess distribution under
Retirement  Plans. 
o Eligible  Mandatory  Distributions  under 403(b) plans and
individual retirement accounts.
o Death of the shareholder (natural person).
o On redemptions of shares in connection with Div-Move and Systematic Withdrawal
Plans  (up  to  12%  per  year). 

 See  "Systematic  Withdrawal  Plan"  for  more
information on CDSCs with respect to Class B shares.

CLASS C SHARE  CDSC.  The 1% CDSC for  Class C shares  normally  applies  if you
redeem your shares before the first  anniversary of your original  purchase.  An
exception is made for shares redeemed from a Mutual Fund Wrap-Fee Program.


APPLICATION  OF  CDSC TO A  REDEMPTION.  To  determine  if a CDSC  applies  to a
redemption, the Fund redeems shares in the following order.
1 Shares acquired by
reinvestment of dividends and capital gains.
2 Shares held for six years or more
(Class B) or one year or more (Class C).
3 Shares  held the  longest  before the
sixth anniversary of their purchase (Class B) or before the first anniversary of
their purchase (Class C).

Class P Shares.
o       No front-end sales charge.
o       Lower annual expenses than Class B and Class C shares.
o       No CDSC.

Class P shares are available to a limited  number of  investors.  Class P shares
are currently  sold at net asset value to the trustees of, or  employer-sponsors
with  respect  to,  pension  or  Retirement  Plans  with at least  100  eligible
employees (such as a plan under Section 401(a), 401(k) or 457(b) of the Internal
Revenue Code) which engage an investment professional providing or participating
in  an  agreement  to  provide  certain  recordkeeping,   administrative  and/or
sub-transfer agency services to the Fund on behalf of the Class P shareholders.
Purchases and  redemptions of Class P shares will be effected at net asset value
by trustees, custodians or employers on behalf of plan participants.

<PAGE>

OPENING YOUR ACCOUNT
Minimum Initial Investment
o Regular account                                   $1,000
o Individual Retirement Accounts,
        (Traditional, Education and Roth) and 403(b)  $250
o Invest-A-Matic and Div-Move                         $250 initial
                                             $50 subsequent minimum

For  Retirement  Plans and Mutual Fund  Wrap-Fee  Programs,  there is no minimum
investment required, regardless of share class.

You may purchase  shares  through any  independent  securities  dealer who has a
sales  agreement  with Lord Abbett  Distributor or you can fill out the attached
application  and send it to the Fund at the  address  stated  below.  You may be
charged a fee if you effect transactions through an independent dealer or agent.
You should read this  Prospectus  carefully  before placing your order to assure
your order is in proper form.

Lord Abbett Developing Growth Fund, Inc.
P.O. Box 419100
Kansas City, MO 64141


PROPER FORM. To be in proper form an order  submitted  directly to the Fund must
contain  (1) a  completed  Application  Form or  information  and  documentation
required  supplementally  by the  Fund,  and (2)  payment  by  check.  For  more
information  regarding  proper  form  of a  purchase  order,  call  the  Fund at
800-821-5129.

Payment must be credited in U.S. dollars to our custodian bank's account.

IMPORTANT INFORMATION.  If you fail to provide a correct taxpayer identification
number or to make certain required  certifications,  you may be subject to a $50
penalty  under the  Internal  Revenue  Code and we may be required to withhold a
portion (31%) of any redemption  proceeds and of any dividend or distribution on
your  account. 

BY EXCHANGE.  Telephone the Fund at  800-821-5129  to request an
exchange from any eligible Lord  Abbett-sponsored  fund. We reserve the right to
withdraw all or any part of the offering  made by this  Prospectus  or to reject
any purchase  order.  We also reserve the right to waive,  increase or establish
minimum  investment  requirements.  All  purchase  orders  are  subject  to  our
acceptance and are not binding until confirmed or accepted in writing.


SHAREHOLDER SERVICES

TELEPHONE  EXCHANGES.   You  or  your  investment   professional,   with  proper
identification,  can instruct  the Fund by  telephone to exchange  shares of any
class for the same class of any Eligible Fund.  Instructions must be received by
the Fund in Kansas  City by calling  800-821-5129  prior to the close of the New
York Stock Exchange ("NYSE") to obtain an Eligible Fund's NAV per class share on
that day. Exchanges will be treated as a sale for federal tax purposes.

For your protection, telephone requests for exchanges are recorded. We will take
measures to verify the  identity  of the  caller,  such as asking for your name,
account  number,  social  security or taxpayer  identification  number and other
relevant  information.  The Fund will not be liable for  following  instructions
communicated by telephone that it reasonably believes to be genuine.

Expedited  exchanges  by  telephone  may be  difficult  to implement in times of
drastic economic or market change.  The exchange privilege should not be used to
take advantage of short-term  swings in the market.  The Fund reserves the right
to limit  or  terminate  this  privilege  for any  shareholder  making  frequent
exchanges and may revoke the privilege for all shareholders  upon 60 days' prior
written notice. You have this privilege unless you refuse it in writing.

You  should  read the  prospectus  of the other  Lord  Abbett-sponsored  fund(s)
selected before making an exchange.

INVEST-A-MATIC.  You can make fixed,  periodic investments ($250 initial and $50
subsequent  minimum) into the Fund by means of automatic  money  transfers  from
your bank checking account. See the attached Application Form for instructions.

DIV-MOVE.  You can invest the dividends  paid on your account ($50 minimum) into
another  account,  within the same class, in any Eligible Fund. The account must
be either your account, a joint spousal account, or a custodial account for your
minor child.

INVESTING BY PHONE. Upon completion and receipt of the attached application form
(in  particular,  section 7), you can  instruct  the Fund by phone to have money
transferred  from  your  bank  account  to  purchase  shares  of the Fund for an
existing  account.  The Fund will purchase the requested  shares upon receipt of
the money from your bank.

SYSTEMATIC  WITHDRAWAL PLAN ("SWP"). You can make periodic cash withdrawals from
your account which are  automatically  paid to you in fixed or variable amounts.
To  participate,  the value of your shares must be at least $10,000,  except for
retirement plans for which there is no minimum.
With respect to Class B shares,  the CDSC will be waived on redemptions of up to
12% of the  current  net  asset  value of your  account  at the time of your SWP
request. For Class B share redemptions over 12% per year, the CDSC will apply to
the entire redemption.  Please contact the Fund for assistance in minimizing the
CDSC in this situation.  Redemption proceeds due to a SWP for Class B (up to 12%
per year) and Class C shares,  will be  redeemed  in the order  described  under
"Redemptions."

LORD ABBETT'S  RETIREMENT  PLANS. The Lord Abbett Family of Funds offers a range
of qualified retirement plans, including IRAs (Traditional, Education and Roth),
SIMPLE  IRAs,   Simplified  Employee  Pension  Plans,  403(b)  and  pension  and
profit-sharing  plans,  including  401(k)  plans.  To find out more about  these
plans, call the Fund at 800-842-0828.

ACCOUNT CHANGES. For any changes you need to make to your account,  consult your
investment professional or call the Fund at 800-821-5129.

HOUSEHOLDING.  Generally,  shareholders with the same last name and address will
receive a single  copy of an annual or  semi-annual  report,  unless  additional
reports are specifically requested in writing to the Fund.

REINVESTMENT  PRIVILEGE.  If you sell shares of the Fund,  you have the one-time
right to reinvest  some or all of the proceeds in the same class of any Eligible
Fund  within 60 days  without a sales  charge.  If you paid a CDSC when you sold
your  shares,  you will be credited  with the amount of the CDSC.  All  accounts
involved must have the same registration.

PRICING  SHARES.  The net asset value ("NAV") per share for each class of shares
is calculated  each business day at the close of regular trading on the New York
Stock Exchange ("NYSE") by dividing a Class's net assets by the number of shares
outstanding.  The Fund is open on  those  business  days  when the NYSE is open.
Purchases and  redemptions  are executed at the next NAV to be calculated  after
your order is accepted.


REDEMPTIONS  By  Broker.  Call  your  broker  or  investment   professional  for
directions on how to redeem your shares.

BY  TELEPHONE.  To obtain the proceeds of an expedited  redemption of $50,000 or
less, you or your  representative  can call the Fund at  800-821-5129.  The Fund
will employ the procedures  described in telephone exchanges to confirm that the
instructions  received  are genuine.  The Fund will not be liable for  following
instructions  communicated  by  telephone  that  it  reasonably  believes  to be
genuine.

BY MAIL. Submit a written  redemption  request indicating your Fund's name, your
share class, your account number, the name(s) in which the account is registered
and the dollar value or number of shares you wish to sell.

Include all  necessary  signatures.  If the signer has any Legal  Capacity,  the
signature  and capacity must be  guaranteed  by an Eligible  Guarantor.  Certain
other legal documentation may be required. For more information regarding proper
documentation call  800-821-5129.  We will verify that the shares being redeemed
were purchased at least 15 days earlier. Your account balance must be sufficient
to  cover  the  amount  being  redeemed  or your  redemption  order  will not be
processed.  Normally a check will be mailed to the  name(s) and  address(es)  in
which the account is  registered,  or otherwise  according  to your  instruction
within one  business  day after  receipt of your  redemption  request.  The Fund
reserves the right to make payment within three business days.

To determine if a CDSC applies to a redemption,  see "Contingent  Deferred Sales
Charges" above.

DIVIDENDS AND CAPITAL GAINS
Dividends/Capital Gains Distributions.  Dividends from net investment income, if
any,  are  expected to be paid  annually.  Any  capital  gains  distribution  is
expected to be made  annually and may be taken in cash or  reinvested.  A second
distribution may be made in order to comply with Federal income tax requirements
that a certain  percentage  of  capital  gains be  distributed  during the year.
Distributions by the Fund of any net long-term  capital gains will be taxable to
a shareholder as long-term  capital gains regardless of how long the shareholder
has held the shares. Under recently enacted legislation, the maximum tax rate on
long-term capital gains for a U.S. individual, estate or trust is reduced to 20%
for distributions derived from the sale of assets held by the Fund for more than
18 months.  (If the  taxpayer is in the 15% tax  bracket,  the rate is 10%.) For
distributions derived from the sale of assets held by the Fund between 12 and 18
months,  the tax  rate  remains  at 28% (15% if the  taxpayer  is in the 15% tax
bracket).

DIVIDENDS/CAPITAL  GAINS  RECEIPT  OR  REINVESTMENT.  If you  elect  to  receive
dividends  or  capital  gains in cash,  a check will be mailed to you as soon as
possible after the  reinvestment  date. If you arrange for direct deposit,  your
payment will be  electronically  transmitted to your bank account within one day
after the payable date.  Most  investors  reinvest  their  dividends and capital
gains.  If you choose this option,  or if you do not  indicate any choice,  your
dividends and capital gains  distributions  will be automatically  reinvested in
additional shares.

TAXES.  The Fund pays no federal  income tax on the earnings it  distributes  to
shareholders.  Consequently,  dividends  you  receive  from  the  Fund,  whether
reinvested  or  taken in  cash,  are  generally  considered  taxable.  Dividends
declared in December of any year will be treated for federal income tax purposes
as having  been  received by  shareholders  in that year if they are paid before
February 1 of the following year.

Each  January,  the  Fund  will  mail to you,  if  applicable,  a Form  1099 tax
information  statement  detailing your dividends and capital gain distributions.
You should consult your tax adviser concerning applicable state and local taxes.

For  more   information   about  the  tax   consequences   from   dividends  and
distributions, see the Statement of Additional Information.


OUR MANAGEMENT

The Fund is supervised by a Board of Directors,  an  independent  body which has
ultimate  responsibility for the Fund's activities.  The Board has retained Lord
Abbett as investment manager pursuant to a Management Agreement. Lord Abbett has
been an  investment  manager for over 69 years and  currently  manages about $27
billion in a family of mutual  funds and other  advisory  accounts.  Lord Abbett
provides  similar  services to twelve  other  funds  having  various  investment
objectives and also advises other investment clients. For more information about
the services Lord Abbett  provides to the Fund,  see the Statement of Additional
Information.

The Fund pays Lord  Abbett a monthly  fee based on average  daily net assets for
each month.  For the fiscal year ended  January 31,  1998,  the fee paid to Lord
Abbett was at an annual rate of 0.56 of 1% for the Fund.  In addition,  the Fund
pays all expenses not expressly assumed by Lord Abbett.

THE FUND.  The Fund is a  diversified  open-end  management  investment  company
incorporated under Maryland law on August 21, 1978. Our predecessor  corporation
was organized on July 11, 1973. Its Class A, B, C and P shares have equal rights
as to voting, dividends, assets and liquidation except for differences resulting
from certain class-specific expenses.

FUND PERFORMANCE
During the past fiscal year, the Fund continued its strategy of identifying  and
investing in unique  companies  that we believe  offer good  long-term  earnings
prospects.  Although the sector allocation of the Fund's portfolio  continues to
be well-diversified, there was a slight overweighting in the energy and software
sectors,  where we found many of our  strongest  performers.  Our  criteria  for
stock-picking  remains  focused on reasonably  priced  stocks of companies  with
above-average,  long-term potential,  and away from the high-multiple "momentum"
stocks.

<PAGE>

See the performance chart on the second to last page of this Prospectus.

INVESTMENT POLICIES, RISKS AND LIMITS

The Fund is  permitted to utilize,  within  limits  established  by the Board of
Directors,  the following  investment  policy in an effort to enhance the Fund's
performance. This policy has risks associated with it. However, the Fund follows
certain  practices that may reduce these risks.  To the extent the Fund utilizes
this policy, its overall performance may be positively or negatively affected.

FOREIGN  SECURITIES:  Foreign  securities  are  securities  primarily  traded in
countries outside the United States.

Risk:  These securities are not subject to the same degree of regulation and may
be more volatile and less liquid than securities  traded in major U.S.  markets.
Other considerations  include political and social instability,  expropriations,
higher transaction costs, currency fluctuations, nondeductible withholding taxes
and different settlement practices.

Limit:  The Fund may invest up to 10% of its assets at the time of investment in
foreign securities.

OBJECTIVE,  RESTRICTION  AND  POLICY  CHANGES.  The  Fund  will not  change  its
investment  objective  or  its  fundamental   restrictions  without  shareholder
approval.  If the Fund  determines  that its objective can best be achieved by a
substantive  change  in  investment   policy,   which  may  be  changed  without
shareholder  approval,  the Fund may make such  change by  disclosing  it in the
Prospectus.

For more information about investment  policies,  restrictions and risk factors,
see the Statement of Additional Information.

SALES COMPENSATION
As part of its plan for  distributing  shares,  the Fund, along with Lord Abbett
Distributor,  pays compensation to Authorized  Institutions that sell the Fund's
shares.  These firms typically pass along a portion of this compensation to your
financial representative.

Compensation  payments  originate  from two sources:  sales charges  (front-end,
level load and  back-end)  and 12b-1 fees that are paid out of the Fund's assets
("12b-1" refers to the federal securities regulation  authorizing annual fees of
this type). The 12b-1 fee rates vary by share class, according to the Rule 12b-1
plan adopted by the Fund for each share class.  The sales charges and 12b-1 fees
paid by investors are detailed in the class-by-class information under "Investor
Expenses"  and  "Purchases."  The  portion  of these  expenses  that are paid as
compensation to Authorized  Institutions,  such as your dealer, are shown in the
chart on the last page of this  Prospectus.  Sometimes  compensation is not paid
where  tracking  data  is not  available  for  certain  accounts  or  where  the
Authorized  Institution waives part of the compensation as with an account under
a Mutual Fund Wrap-Fee Program.
Rule  12b-1  distribution  fees  may be used to pay for  sales  compensation  to
Authorized Institutions,  for any activity which is primarily intended to result
in the  sale of  shares  and,  for  Class  B  shares,  the  financing  of  sales
commissions.

FIRST  YEAR  COMPENSATION.  Whenever  you make an  investment  in the Fund,  the
Authorized  Institution  receives  compensation as described in the chart on the
last page of this Prospectus.

ANNUAL  COMPENSATION  AFTER FIRST YEAR.  Beginning with the second year after an
investment is made, the Authorized  Institution  receives annual compensation as
described in the chart on the last page of this Prospectus.

Additional Concessions may be paid to Authorized Institutions from time to time.


<PAGE>

GLOSSARY OF TERMS
ADDITIONAL CONCESSIONS. A supplemental annual distribution fee equal to 0.10% of
the  average  daily  net  asset  value of the  Class A shares  is  available  to
Authorized  Institutions which have a program for the promotion and retention of
such shares satisfying Lord Abbett Distributor.  Class A shares held pursuant to
a  satisfactory  program  would,  for  example,  (i)  constitute  a  significant
percentage of the Fund's net assets,  (ii) be held for a  substantial  length of
time  and/or  (iii) have a lower  than  average  redemption  rate.  Lord  Abbett
Distributor may, for specified  periods,  allow dealers to retain the full sales
charge for sales of shares or may pay an  additional  concession to a dealer who
sells a  minimum  dollar  amount  of our  shares  and/or  shares  of other  Lord
Abbett-sponsored  funds. In some instances,  such additional concessions will be
offered only to certain dealers expected to sell significant  amounts of shares.
Lord Abbett Distributor may, from time to time, implement promotions under which
Lord  Abbett  Distributor  will pay a fee to  dealers  with  respect  to certain
purchases not involving imposition of a sales charge. Additional payments may be
paid from Lord Abbett  Distributor's  own resources and will be made in the form
of cash or, if permitted,  non-cash payments. The non-cash payments will include
business  seminars at Lord Abbett's  headquarters or other locations,  including
meals and  entertainment,  or the receipt of merchandise.  The cash payments may
include payment of various business expenses of the dealer. In selecting dealers
to  execute  portfolio  transactions  for the Fund's  portfolio,  if two or more
dealers are considered  capable of obtaining best  execution,  we may prefer the
dealer who has sold our  shares  and/or  shares of other  Lord  Abbett-sponsored
funds.

AUTHORIZED  INSTITUTIONS.  Institutions and persons  permitted by law to receive
service  and/or  distribution  fees  under a Rule  12b-1  plan  are  "authorized
institutions."

ELIGIBLE  FUND.  (a) Any Lord  Abbett-sponsored  fund except  certain  tax-free,
single-state series where the exchanging shareholder is a resident of a state in
which such series is not offered for sale;  Lord Abbett Equity Fund; Lord Abbett
Series  Fund;  Lord Abbett  Research  Fund -- Mid-Cap  Series;  Lord Abbett U.S.
Government  Securities Money Market Fund ("GSMMF") (except for holdings in GSMMF
which are  attributable  to any shares  exchanged from the Lord Abbett Family of
Funds). (b) Any Authorized Institution's affiliated money market fund satisfying
Lord Abbett Distributor as to certain omnibus account and other criteria.

ELIGIBLE  GUARANTOR.  Any broker or bank that is a member of the medallion stamp
program.  Most major securities  firms and banks are members of this program.  A
notary public is not an eligible guarantor.

ELIGIBLE  MANDATORY  DISTRIBUTIONS.  If  Class B shares  represent  a part of an
individual's total IRA or 403(b)  investment,  the CDSC waiver is available only
for that portion of a mandatory  distribution  which bears the same  relation to
the entire  mandatory  distribution as the B share investment bears to the total
investment.

EMPLOYEES  OF LORD  ABBETT/FUND  DIRECTORS  (TRUSTEES).  The terms  "directors,"
"trustees"  (of a Fund) and  "employees"  (of Lord Abbett)  include a director's
(trustee's) or employee's  spouse  (including the surviving spouse of a deceased
director  (trustee)  or  employee).   The  terms  "directors,"   "trustees"  and
"employees  of Lord  Abbett"  also  include  other  family  members  and retired
directors (trustees) and employees.

LEGAL  CAPACITY.  With respect to a  redemption  request,  if (for  example) the
request is on behalf of the estate of a deceased shareholder,  John W. Doe, by a
person  (Robert A. Doe) who has the legal  capacity to act for the estate of the
deceased  shareholder because he is the executor of the estate, then the request
must be executed as  follows:  Robert A. Doe,  Executor of the Estate of John W.
Doe. Similarly,  if (for example) the redemption request is on behalf of the ABC
Corporation  by a person  (Mary B. Doe) that has the  legal  capacity  to act on
behalf of this  corporation,  because she is the  President of the  corporation,
then the request must be executed as follows:  ABC  Corporation  by Mary B. Doe,
President.

<PAGE>

An acceptable form of guarantee would be as follows:
o In the case of the estate -
        Robert A. Doe, Executor
        of the Estate of John W. Doe
       [Date]            SIGNATURE GUARANTEED
                         MEDALLION GUARANTEED
                         NAME OF GUARANTOR
                         /S/ [ILLEGIBLE]
___________________________________________
                         AUTHORIZED SIGNATURE

o In the case of the corporation -
        ABC Corporation
        Mary B. Doe
        By Mary B. Doe, President
        [Date]           SIGNATURE GUARANTEED
                         MEDALLION GUARANTEED
                         NAME OF GUARANTOR
                         /S/ [ILLEGIBLE]
___________________________________________
                         AUTHORIZED SIGNATURE



LORD ABBETT CONSULTANTS/ADVISERS.  Consultants and advisers to Lord Abbett, Lord
Abbett Distributor or Lord  Abbett-sponsored  funds who consent to such purchase
if such persons provide services to Lord Abbett, Lord Abbett Distributor or such
funds on a continuing basis and are familiar with such fund.

LORD ABBETT  DISTRIBUTOR  LLC. Lord Abbett  Distributor is the Fund's  exclusive
selling agent.  Lord Abbett  Distributor is obligated to use its best efforts to
find  purchasers for the shares of the Fund, and to make  reasonable  efforts to
sell  Fund  shares  so  long  as,  in  Lord  Abbett  Distributor's  judgment,  a
substantial distribution can be obtained.

MUTUAL FUND WRAP-FEE PROGRAM. Certain unaffiliated authorized brokers,  dealers,
registered investment advisers or other financial  institutions who have entered
into an  agreement  with Lord Abbett  Distributor  in  accordance  with  certain
standards approved by Lord Abbett  Distributor,  providing  specifically for the
use of our shares (and  sometimes  providing  for  acceptance of orders for such
shares on our behalf) in particular investment products made available for a fee
to clients of such brokers,  dealers,  registered  investment advisers and other
financial institutions.

PURCHASER. The term "purchaser" includes: (i) an individual,  (ii) an individual
and his or her  spouse and  children  under the age of 21 and (iii) a trustee or
other fiduciary  purchasing shares for a single trust estate or single fiduciary
account  (including a pension,  profit-sharing  or other employee  benefit trust
qualified  under  Section  401 of the  Internal  Revenue  Code -- more  than one
qualified   employee  benefit  trust  of  a  single   employer,   including  its
consolidated  subsidiaries,  may be considered a single trust,  as may qualified
plans of multiple  employers  registered in the name of a single bank trustee as
one account), although more than one beneficiary is involved.

RETIREMENT PLANS. Employer-sponsored retirement plans under the Internal Revenue
Code.

SPECIAL   RETIREMENT  WRAP  PROGRAM.   A  program  sponsored  by  an  authorized
institution  showing  one or  more  characteristics  distinguishing  it,  in the
opinion of Lord Abbett  Distributor,  from a mutual fund wrap-fee program.  Such
characteristics  include,  among  other  things,  the  fact  that an  authorized
institution  does not charge its  clients  any fee of a  consulting  or advisory
nature that is  economically  equivalent to the  distribution  fee under Class A
12b-1  Plan  and the fact  that  the  program  relates  to  participant-directed
Retirement Plans.

TOTAL RETURN. "Total return" for the one-, five- and ten-year periods represents
the average annual  compounded  rate of return on an investment of $1,000 in the
Fund at the maximum public offering price. When total return is quoted for Class
A shares,  it includes the payment of the maximum  initial  sales  charge.  When
total return is shown for Class B and Class C shares,  it reflects the effect of
the applicable CDSC. There is no CDSC for Class P shares.  Total return also may
be presented for other periods or based on  investments  at reduced sales charge
levels or net asset value.  Any  quotation of total  return not  reflecting  the
maximum  sales charge  (front-end,  level load or back-end)  would be reduced if
such sales charge were used.  Quotations of yield or total return for any period
when an expense  limitation is in effect will be greater than if the  limitation
had not been in effect.  See "Past  Performance"  in the Statement of Additional
Information for a more detailed description.

<PAGE>

This  Prospectus  does not constitute an offering in any  jurisdiction  in which
such offer is not  authorized  or in which the person  making  such offer is not
qualified to do so or to anyone to whom it is unlawful to make such offer.

No person is authorized to give any  information or to make any  representations
not contained in this Prospectus or in supplemental sales material authorized by
the  Fund  and  no  person  is  entitled  to  rely  upon  any   information   or
representation not contained herein or therein.

The  performance  of the Class A shares which is shown in the  comparison  below
will be more  than or less  than  that  shown  below for Class B, C and P shares
based  on the  differences  in  sales  charges  and  fees  paid by  shareholders
investing in the different  classes.  Comparison of change in value of a $10,000
investment in Class A shares in the Fund, assuming reinvestment of all dividends
and distributions and the unmanaged Russell 2000 Index.

               Fund at NAV         Fund at                 Russell 2000 Index
                              Maximum Offering Price

1988           10,000         9,420                         
1989           11,062         10,420                        12,514
1990           11,020         10,381                        12,710
1991           12,635         11,902                        12,229
1992           17,882         16,845                        17,705
1993           17,470         16,456                        20,049
1994           20,336         19,157                        23,776
1995           19,777         18,630                        22,347
1996           29,710         27,987                        29,040
1997           38,132         35,921                        34,544
1998           47,431         44,681                        40,786

(LINE GRAPH OMITTED)

Average Annual Total Return for Class A Shares(3)
        19951 Year           5 Years        10 Years
        17.319960%           20.66%         16.15% 

Average Annual Total Return for Class B Shares(4)
        1 Year           Life of Class (8/1/96-1/31/98)
         18.54%           26.08%

Average Annual Total Return for Class C Shares(5)
        1 Year  Life of Class (8/1/96-1/31/98)
        23.55%  29.61%

 Total Return for Class P Shares(6)(7)
       Life of Class (1/5/98-1/31/98)
                (.80)%



(1)Data  reflects  the  deduction of the maximum  initial  sales charge of 5.75%
applicable to Class A shares.  (2)Performance  numbers for the unmanaged Russell
2000 Index do not reflect  transaction  costs or  management  fees.  An investor
cannot invest directly in this Index.

(3)Total  return is the percent change in value,  after deduction of the maximum
initial sales charge of 5.75%  applicable to Class A shares,  with all dividends
and distributions reinvested for the periods shown ending January 31, 1998 using
the SEC-required uniform method to compute such return. (4) Performance reflects
the deduction of the applicable CDSC.
(5) Performance is at net asset value.
(6) Not annualized.
(7) No sales  charge.



                                             FIRST YEAR COMPENSATION
Class A investments
                 Front-end
                 sales charge      Dealer's      Service     Total Compensation
                 paid by investors concession    Fee(1)      (%of offering 
                 (% of offering    (% of         (%of net        price)
                     price)       offering price) investment)
Less than $50,000   5.75%          5.00%           0.25%          5.24%
$50,000 - $99,999   4.75%           4.00%          0.25%          4.24%
$100,000 - $249,999 3.75%           3.25%          0.25%           3.49%
$250,000 - $499,999  2.75%          2.25%          0.25%          2.49%
$500,000 - $999,999  2.00%          1.75%          0.25%          2.00%
$1 million or more(3) or
Retirement Plan - 100 or more eligible employees(3) or
Special Retirement Wrap Program(3)

First $5 million no front-end sales charge  1.00%      0.25%     1.25% 
Next $5 million  no front-end  sales        0.55%      0.25%     0.80%
above that
Next $40 million nofront-end sales charge   0.50%      0.25%     0.75%
above that  
Over $50 million no front-end sales charge  0.25%      0.25%     0.50%
 
Class B  investments  Paid at time of sale (% of net asset value) (4)
net asset  value)(4)  
All amounts no front-end sales charge       3.75%      0.25%      4.00%
Class C  investments 
All amounts no front-end sales charge       0.75%      0.25%      1.00%
Class P  investments      Percentage  of average net assets 
All amounts no front-end sales charge       0.25%     0.20%       0.45%
 
        
ANNUAL COMPENSATION AFTER FIRST YEAR
Class A investments
All amounts     no front-end sales charge       none    0.25%   0.25%
Class B  investments                       Percentage of average net assets (5)
All  amounts    no front-end sales charge       none    0.25%   0.25%
Class C investments
All  amounts    no front-end sales charge       0.75%   0.25%   1.00%
Class P investments
All amounts     no front end sales charge       0.25%   0.20%   0.45%


(1) The service fee for Class A and P shares is paid  quarterly  and for Class A
shares may not exceed  0.15% if sold  prior to June 1,  1990.  The first  year's
service fee on Class B and C shares is paid at the time of sale.
(2)   Reallowance/concession   percentages   and  service  fee  percentages  are
calculated   from  different   amounts,   and  therefore  may  not  equal  total
compensation   percentages  if  combined  using  simple   addition.   Additional
Concessions may be paid to Authorized Institutions from time to time.
(3)  Concessions  are paid at the time of sale on all Class A shares sold during
any  12-month  period  starting  from the day of the first net asset value sale.
With  respect  to (a)  Class A share  purchases  at $1  million  or more,  sales
qualifying at such level under rights of accumulation and statement of intention
privileges are included and (b) for Special  Retirement Wrap Programs,  only new
sales are eligible and exchanges into the Fund are excluded.

(4) Class C shares of the Fund may be  purchased  under a Mutual  Fund  Wrap-Fee
Program,  in which case, an alternative  method of payment may be made quarterly
on average net assets, on a pro-rata basis,  during the first year subsequent to
the purchase of shares, excluding dividend and distribution reinvestments. After
the first year,  payments  with respect to C shares under a Mutual Fund Wrap-Fee
Program  follow the chart above as set forth under  "Annual  Compensation  After
First  Year." 
(5) With respect to Class B, C and P shares,  0.25% and 1.00% and
0.45%,  respectively,  of the  average  annual  net asset  value of such  shares
outstanding during the quarter (including distribution reinvestment shares after
the first  anniversary  of their  issuance) is paid to Authorized  Institutions.
These fees are paid quarterly in arrears.

Investment Manager and Underwriter
Lord, Abbett & Co. and Lord Abbett Distributor LLC
The General Motors Building
767 Fifth Avenue
New York, New York 10153-0203
212-848-1800

Custodian
The Bank of New York
48 Wall Street
New York, New York 10286

Transfer Agent and Dividend
Disbursing Agent
United Missouri Bank of Kansas City, N.A.
Tenth and Grand
Kansas City, Missouri 64141

Shareholder Servicing Agent
DST Systems, Inc.
P.O. Box 419100
Kansas City, Missouri 64141 800-821-5129 

Auditors Deloitte & Touche LLP 

Counsel
Debevoise & Plimpton Printed in the U.S.A.
LADG-1-698
(6/98)


LORD ABBETT
DEVELOPING GROWTH FUND, INC.
The General Motors Building
767 Fifth Avenue
New York, NY 10153-0203


June 1, 1998

Application Inside


LORD ABBETT
DEVELOPING GROWTH FUND, INC.

<PAGE>
                                                        

LORD ABBETT
STATEMENT OF ADDITIONAL INFORMATION                                JUNE 1, 1998
                                   LORD ABBETT
                          DEVELOPING GROWTH FUND, INC.

This Statement of Additional  Information is not a Prospectus.  A Prospectus may
be obtained  from your  securities  dealer or from Lord Abbett  Distributor  LLC
("Lord Abbett  Distributor") at The General Motors  Building,  767 Fifth Avenue,
New York, New York 10153-0203.  This Statement relates to, and should be read in
conjunction with, the Prospectus dated June 1, 1998.

Lord Abbett Developing Growth Fund, Inc.  (sometimes  referred to as "we" or the
"Fund")  was  incorporated  under  Maryland  law on  August  21,  1978  and  its
predecessor   corporation   was  organized  on  July  11,  1973.  The  Fund  has
1,000,000,000  shares of authorized  capital stock consisting of five classes of
shares.  This Statement of Additional  Information  offers four of those classes
(A, B ,C and P), $0.01 par value.  The Board of Directors  will  allocate  these
authorized  shares of capital  stock  among the classes  from time to time.  All
shares have equal  noncumulative  voting rights and equal rights with respect to
dividends,  assets and liquidation,  except for certain class-specific expenses.
They are fully paid and  nonassessable  when  issued and have no  preemptive  or
conversion rights. Although no present plans exist to do so, further classes may
be added in the future.  The  Investment  Company Act of 1940,  as amended  (the
"Act"),  requires  that  where  more than one class  exists,  each class must be
preferred over all other classes in respect of assets specifically  allocated to
such class.

Rule 18f-2 under the Act provides that any matter  required to be submitted,  by
the provisions of the Act or applicable  state law or otherwise,  to the holders
of the outstanding  voting securities of an investment  company such as the Fund
shall not be deemed to have been  effectively  acted upon unless approved by the
holders of a majority of the  outstanding  shares of each class affected by such
matter.  Rule 18f-2 further provides that a class shall be deemed to be affected
by a matter unless the  interests of each class in the matter are  substantially
identical or the matter does not affect any interest of such class. However, the
Rule exempts the selection of independent public accountants,  the approval of a
contract  with a principal  underwriter  and the election of directors  from its
separate voting requirements.

Shareholder  inquiries  should  be made by  writing  directly  to the Fund or by
calling 800-821-5129. In addition, you can make inquiries through your dealer.

         TABLE OF CONTENTS                                          Page

1.       Investment Objective and Policies                            2
2.       Directors and Officers                                       5
3.       Investment Advisory and Other Services                       7
4.       Portfolio Transactions                                       8
5.       Purchases, Redemptions and Shareholder Services              9
6.       Past Performance                                            18
7.       Taxes                                                       18
8.       Information About the Fund                                  20
9.       Financial Statements                                        20


<PAGE>
                                       1.
                        Investment Objective and Policies

FUNDAMENTAL INVESTMENT RESTRICTIONS
The Fund may not:  (1) borrow  money,  except  that (i) the Fund may borrow from
banks (as defined in the Investment  Company Act of 1940 ("the Act")) in amounts
up to 33 1/3% of its total assets (including the amount borrowed), (ii) the Fund
may borrow up to an additional  5% of its total assets for  temporary  purposes,
(iii) the Fund may obtain such  short-term  credit as may be  necessary  for the
clearance of purchases and sales of portfolio  securities  and (iv) the Fund may
purchase  securities on margin to the extent  permitted by  applicable  law; (2)
pledge  its  assets  (other  than to secure  such  borrowings,  or to the extent
permitted by the Fund's investment policies, as permitted by applicable law; (3)
engage  in the  underwriting  of  securities,  except  pursuant  to a merger  or
acquisition  or to the extent that, in connection  with the  disposition  of its
portfolio  securities,  it may be  deemed  to be an  underwriter  under  federal
securities laws; (4) make loans to other persons, except that the acquisition of
bonds,   debentures  or  other  corporate  debt  securities  and  investment  in
government obligations, commercial paper, pass-through instruments, certificates
of  deposit,   bankers  acceptances,   repurchase   agreements  or  any  similar
instruments  shall not be subject to this limitation and except further that the
Fund may lend its portfolio  securities,  provided that the lending of portfolio
securities may be made only in accordance  with  applicable law; (5) buy or sell
real  estate  (except  that  the Fund  may  invest  in  securities  directly  or
indirectly  secured by real estate or  interests  therein or issued by companies
which  invest in real estate or  interests  therein)  commodities  or  commodity
contracts (except to the extent the Fund may do so in accordance with applicable
law and without  registering  as a commodity  pool operator  under the Commodity
Exchange Act as, for example,  with futures contracts);  (6) with respect to 75%
of the gross assets of the Fund, buy securities of one issuer  representing more
than (i) 5% of the Fund's gross assets,  except  securities issued or guaranteed
by the U.S.  Government,  its agencies or  instrumentalities  or (ii) 10% of the
voting securities of such issuer; (7) invest more than 25% of its assets,  taken
at market  value,  in the  securities  of  issuers  in any  particular  industry
(excluding    securities   of   the   U.S.   Government,    its   agencies   and
instrumentalities);  or (8) issue senior  securities to the extent such issuance
would violate applicable law.

With respect to the restrictions mentioned herein, compliance therewith will not
be affected by change in the market  value of portfolio  securities  but will be
determined at the time of purchase or sale of such securities.

NON-FUNDAMENTAL   INVESTMENT   RESTRICTIONS.   In  addition  to  the  investment
restrictions above which cannot be changed without shareholder approval, we also
are subject to the following  non-fundamental  investment  policies which may be
changed by the Board of Directors  without  shareholder  approval.  The Fund may
not: (1) borrow in excess of 33 1/3% of its total assets  (including  the amount
borrowed),  and then only as a temporary  measure for extraordinary or emergency
purposes; (2) make short sales of securities or maintain a short position except
to the extent permitted by applicable law; (3) invest knowingly more than 15% of
its net assets (at the time of  investment) in illiquid  securities,  except for
securities  qualifying for resale under Rule 144A of the Securities Act of 1933,
deemed to be liquid by the Board of Directors; (4) invest in securities of other
investment  companies as defined in the Act,  except as permitted by  applicable
law; (5) invest in securities of issuers which, with their predecessors,  have a
record of less than three years of continuous operation,  if more than 5% of the
Fund's total assets would be invested in such securities (this restriction shall
not apply to mortgaged-backed securities, asset-backed securities or obligations
issued   or   guaranteed   by  the   U.   S.   Government,   its   agencies   or
instrumentalities);  (6) hold  securities of any issuer when more than 1/2 of 1%
of the  securities of such issuer are owned  beneficially  by one or more of the
Fund's  officers  or  directors  or by  one  or  more  partners  of  the  Fund's
underwriter  or  investment  adviser  if  these  owners  in  the  aggregate  own
beneficially  more than 5% of such  securities  of such  issuer;  (7)  invest in
warrants if, at the time of acquisition,  its investment in warrants,  valued at
the  lower  of cost or  market,  would  exceed  5% of the  Fund's  total  assets
(included  within  such  limitation,  but not to exceed  2% of the  Funds  total
assets,  are  warrants  which are not listed on the New York or  American  Stock
Exchange  or a major  foreign  exchange);  (8)  invest  in real  estate  limited
partnership  interests  or interests in oil,  gas or other  mineral  leases,  or
exploration  or  development  programs,  except  that  the Fund  may  invest  in
securities  issued  by  companies  that  engage  in oil,  gas or  other  mineral
exploration or development activities;  (9) write, purchase or sell puts, calls,
straddles,  spreads or combinations  thereof,  except to the extent permitted in
the Fund's  prospectus and statement of additional  information,  as they may be
amended  from  time to time;  or (10)  buy from or sell to any of its  officers,
directors,  employees,  or its  investment  adviser  or  any  of  its  officers,
directors, partners or employees, any securities other than shares of the Fund's
common stock.

<PAGE>
Although it has no current  intention to do so, the Fund may invest in financial
futures and options on financial futures.

A repurchase  agreement is the purchase and simultaneous  commitment to resell a
security at a specified time and price.  The  underlying  security is collateral
under the agreement.  As a matter of operating  policy,  we will not invest more
than 10% of the value of our assets in  repurchase  agreements  maturing in more
than seven days.

We did not invest in repurchase  agreements or lend portfolio  securities during
our last fiscal year and have no present intent to do so.

PORTFOLIO  TURNOVER  RATE.  For the fiscal  year ended  January  31,  1998,  our
portfolio turnover rate was 33.60% versus 42.35% for the prior fiscal year.

STOCK INDEX FUTURES  CONTRACTS.  The Fund believes it can reduce the  volatility
inherent in its portfolio through the use of stock index futures  contracts.  (A
stock  index  futures  contract  is an  agreement  pursuant to which two parties
agree,  one to receive and the other to pay,  on a  specified  date an amount of
cash equal to a specified  dollar amount --  established by an exchange or board
of trade -- times the difference  between the value of the index at the close of
the last trading day of the contract and the price at which the futures contract
is  originally  written.  No  consideration  is paid or received at the time the
contract is entered into,  only the good faith deposit  described  herein.) When
Lord Abbett, our investment manager, anticipates a general decline in the sector
of the stock market which includes our portfolio  assets,  we can reduce risk by
hedging  the effect of such  decline on our ability to sell assets at best price
or otherwise  hedge a decision to delay the sale of portfolio  securities.  Such
hedging would be possible if there were an established,  regularly-quoted  stock
index for equities of the  character in which we invest and if an active  public
market  were to  develop  on a stock  exchange  or board  of  trade  in  futures
contracts based on such index.

The market  value of a futures  contract is based  primarily on the value of the
underlying  index.  Changes  in  the  value  of the  index  will  cause  roughly
corresponding  changes in the market  price of the futures  contract,  except as
otherwise  described below. If a stock index is established  which is made up of
securities   whose   market   characteristics   closely   parallel   the  market
characteristics  of the securities in our portfolio,  then the market value of a
futures contract on that index should fluctuate in a way closely  resembling the
market fluctuation of our portfolio.  Thus, if we should sell futures contracts,
a decline in the market value of the portfolio  will be offset by an increase in
the value of the short  futures  position to the extent of the hedge (i.e.,  the
percentage  of the  portfolio  value  represented  by the  value of the  futures
position).  Conversely,  when we are in a strong  cash  position  (for  example,
through  substantial  sales  of our  shares)  and  wish to  invest  the  cash in
anticipation  of a rising  market,  we could  rapidly hedge against the expected
market increase by buying futures contracts to offset the cash position and thus
cushion the adverse  effect of  attempting  to buy  individual  securities  in a
rising market.

The public  markets for existing  stock index futures  contracts,  such as those
using the  Standard  & Poor's  100 Index  and 500  Index  traded on the  Chicago
Mercantile  Exchange or those using the New York Stock Exchange  Composite Index
traded on the New York Stock  Exchange  ("NYSE"),  are active and have developed
substantial  liquidity and we expect a similar market to develop for stock index
futures on a representative  group of over-the-counter  stocks. The existence of
an active market would permit us to close out our position in futures  contracts
by purchasing an equal and opposite position in the public market. Under futures
contracts  currently in use, the  purchaser  would be required to segregate in a
separate account,  as a good faith deposit,  cash or Treasury bills in an amount
set by a board of trade or exchange (currently  approximately 5% of the contract
value).  Each day during the  contract  period we would either pay or receive an
amount of cash equal to the daily  change in the total  value of the  contracts.
The amount which we may segregate upon entering into a futures  contract may not
exceed, together with the amounts on deposit under all outstanding contracts, 5%
of the value of our  total  assets,  nor may we enter  into  additional  futures
contracts if, as a result,  the aggregate  amount  committed  under all our open
futures contracts would exceed more than one-third of the value of such assets.

<PAGE>
There are several  risks in  connection  with the use of futures  contracts as a
hedging device. One risk is the imperfect correlation between the composition of
our portfolio  securities  and the applicable  stock index.  If the value of the
futures  contract moves more than the value of the stock being hedged,  we would
experience  either a loss or a gain on the futures  contract  which would not be
completely  offset by  movements  in the value of the  securities  which are the
subject of the hedge.  Another risk is that the value of futures  contracts  may
not correlate  perfectly  with movement in the stock index due to certain market
distortions. Although we will enter into futures contracts strictly to hedge our
portfolio or cash positions,  other investors use these investment  vehicles for
other, sometimes more speculative, purposes. At times, excess speculation in the
futures market can distort the normal market  relationship  between the price of
the futures  contract and the value of the index.  If we decide to enter into or
close out our futures position during a period of such excess  speculation,  the
hedging strategy will be more or less successful, depending on the direction and
amount  of  this  distortion,  than  otherwise  would  be the  case.  Due to the
possibility  of price  distortion  in the  futures  market  and  because  of the
imperfect  correlation between movements in the stock index and movements in the
price of stock index futures  contracts,  a correct  forecast of general  market
trends by Lord Abbett may still not result in a successful hedging transaction.

It is possible  that,  when we sell  futures  contracts  to hedge our  portfolio
against a decline in the market, the market, as measured by the stock index, may
advance while the value of securities held in our portfolio may decline. If this
occurs,  we will lose  money on the  futures  contracts  and also  experience  a
decline in value in our portfolio securities. However, Lord Abbett believes that
over time the  value of a  diversified  portfolio  will tend to move in the same
direction as the market index upon which the futures contracts are based.

Where futures  contracts  are purchased to hedge against a possible  increase in
the price of stock before we are able to invest our cash position in stock in an
orderly fashion, it is possible that the market may decline instead and we would
realize a loss; if we then decide not to invest in stock at that time because of
concern as to possible  further market  decline or for other  reasons,  we would
realize a loss on the futures  contract that would be offset,  to the extent the
cash position had not been invested in stocks being hedged.

Positions in futures contracts may be closed out only on an exchange or board of
trade which provides a market for such contracts. Although we intend to purchase
or sell  futures  contracts  only  if an  active  market  has  developed  and is
continuing,  there is no assurance  that a liquid market on an exchange or board
of trade will exist for any particular  contract or at any  particular  time. In
such event, it may not be possible to close out a futures  position,  and in the
event of adverse price movements, we would continue to be required to make daily
cash payments marking our position to market.  However,  since futures contracts
would have been used to hedge portfolio securities and such securities would not
be sold until the  futures  contracts  had been  terminated,  an increase in the
price of the  securities,  if any, may partially or completely  offset losses on
the futures contract.

We may incur  additional  brokerage  commissions  through  entering into futures
contracts,  although we also can save on  commissions  by hedging  through  such
contracts  rather  than  through  buying or  selling  individual  securities  in
anticipation  of market moves.  Successful  use by us of futures  contracts will
depend upon Lord Abbett's  ability to predict  movements in the direction of the
over-the-counter   market  generally,   which  requires   different  skills  and
techniques than predicting changes in the prices of individual stocks.

To date,  we have not  entered  into any futures  contracts  and have no present
intent to do so. An  established,  regularly-quoted  stock index for equities of
the character in which we invest has not yet been established.  If such an index
is established and we actually use futures contracts,  we will disclose such use
in our Prospectus.

<PAGE>


                                       2.
                             Directors and Officers

The following directors are partners of Lord, Abbett & Co. ("Lord Abbett"),  The
General Motors Building,  767 Fifth Avenue, New York, New York 10153-0203.  They
have been  associated with Lord Abbett for over five years and are also officers
and/or  directors or trustees of the twelve other Lord  Abbett-sponsored  funds.
They  are  "interested  persons"  as  defined  in the Act,  and as such,  may be
considered  to have an  indirect  financial  interest  in the  Rule  12b-1  Plan
described in the Prospectus.

Robert S. Dow, age 53, Chairman and President
E. Wayne Nordberg, age 59, Vice President

The following  outside  directors  are also  directors or trustees of the twelve
other Lord Abbett-sponsored funds referred to above.

E. Thayer Bigelow
Courtroom Television Network
600 Third Avenue
New York, New York

Chief Executive Officer of Courtroom Television Network.  Formerly President and
Chief Executive  Officer of Time Warner Cable  Programming,  Inc. Prior to that,
President and Chief Operating Officer of Home Box Office. Age 56.

Robert B. Calhoun *
Monitor Clipper Partners
650 Madison Avenue, 9th Floor
New York, New York

Managing  Director of Monitor  Clipper  Partners  and  President  of The Clipper
Group,  both  private  equity  investment  funds.  Age 55. * Elected a director,
effective as of June 17, 1998

Stewart S. Dixon
Wildman, Harrold, Allen & Dixon
225 W. Wacker Drive (Suite 2800)
Chicago, Illinois

Partner in the law firm of Wildman, Harrold, Allen & Dixon. Age 67.

John C. Jansing
162 S. Beach Road
Hobe Sound, Florida

Retired. Former Chairman of Independent Election Corporation of America, a proxy
tabulating firm. Age 72.

C. Alan MacDonald
Directorship Inc.
8 Sound Shore Drive
Greenwich, Connecticut

Managing  Director of Directorship  Inc., a consultancy in board  management and
corporate  governance.  Formerly  General Partner of The Marketing  Partnership,
Inc., a full service  marketing  consulting  firm (1994 - 1997).  Prior to that,
Chairman and Chief Executive  Officer of Lincoln Snacks,  Inc.,  manufacturer of
branded  snack foods (1992 - 1994).  His career spans 36 years at Stouffers  and
Nestle  with 18 of the years as Chief  Executive  Officer.  Currently  serves as
Director of DenAmerica Corp., J.B. Williams Company,  Inc.,  Fountainhead  Water
Company and Exigent Diagnostics. Age 65.

<PAGE>
Hansel B. Millican, Jr.
Rochester Button Company
1100 Noblin Avenue
South Boston, Virginia

President and Chief Executive Officer of Rochester Button Company.  Age 69.


Thomas J. Neff
Spencer Stuart U.S.
277 Park Avenue
New York, New York

Chairman of Spencer Stuart U.S., an executive search consulting firm. Age 60.


The second column of the following table sets forth the compensation accrued for
the Fund's  outside  directors.  The third  column sets forth  information  with
respect to the equity-based  benefits accrued for outside  directors by the Lord
Abbett-sponsored  funds.  The fourth  column  sets forth the total  compensation
payable  by such  funds  to the  outside  directors.  No  director  of the  Fund
associated with Lord Abbett and no officer of the Fund received any compensation
from the Fund for acting as a director or officer.



                                 For the Fiscal Year Ended January  31, 1998
         (1)                  (2)                  (3)                    (4)

                                                             For Year Ended
                                        Equity-Based         December 31, 1997
                                        Benefits Accrued     Total Compensation
                           Aggregate    by the Fund and      Accrued by the Fund
                           Compensation Twelve Other Lord  and Twelve Other Lord
                           Accrued by   Abbett-sponsored       Abbett-sponsored
Name of Director           the Fund1    Funds2                 Funds3

E. Thayer Bigelow          $1,114              $17,068                $56,000
Stewart S. Dixon           $1,092              $32,190                $55,000
John C. Jansing            $1,092              $45,085(4)             $55,000
C. Alan MacDonald          $1,139              $30,703                $57,400
Hansel B. Millican, Jr.    $1,092              $37,747                $55,000
Thomas J. Neff             $1,114              $19,853                $56,000


1. Outside  directors' fees,  including  attendance fees for board and committee
   meetings,  are allocated among all Lord  Abbett-sponsored  funds based on the
   net  assets of each fund.  A portion  of the fees  payable by the Fund to its
   outside  directors/trustees  is being  deferred  under a plan that  deems the
   deferred amounts to be invested in shares of the Fund for later  distribution
   to the directors/trustees.

<PAGE>
2. The amounts in Column 3 were accrued by the Lord  Abbett-Sponsored  Funds for
   the 12 months  ended  October 31, 1997 with respect to the equity based plans
   established  for  independent  directors  in 1996.  This  plan  supercedes  a
   previously  approved  retirement  plan  for  all  future  directors.  Current
   directors  had the  option  to  convert  their  accrued  benefits  under  the
   retirement  plan.  All of the  outside  directors  except  one  made  such an
   election.

3. This  column  shows  aggregate  compensation,  including  directors  fees and
   attendance fees for board and committee meetings,  of a nature referred to in
   footnote  one,  accrued by the Lord  Abbett-sponsored  funds  during the year
   ended December 31, 1997. The amounts of the aggregate compensation payable by
   the Fund as of January  31, 1998 deemed  invested in Fund  shares,  including
   dividends reinvested and changes in net asset value applicable to such deemed
   investments,  were: Mr. Bigelow,  $3,724;  Mr. Dixon,  $29,166;  Mr. Jansing,
   $65,878; Mr. MacDonald, $22,129; Mr. Millican, $67,603 and Mr. Neff, $68,005.
   If the amounts deemed  invested in Fund shares were added to each  director's
   actual  holdings of Fund shares as of January 31,  1998,  each would own, the
   following:  Mr. Bigelow,  260 shares;  Mr. Dixon,  3,125 shares; Mr. Jansing,
   22,764 shares; Mr. MacDonald,  1,550 shares; Mr. Millican,  4,737 shares; and
   Mr. Neff, 8,420 shares.

4. Mr. Jansing chose to continue to receive  benefits under the retirement plan,
   which  provides  that  outside   directors   (trustees)  may  receive  annual
   retirement  benefits for life equal to their final annual retainer  following
   retirement  at or after age 72 with at least ten years of service.  Thus,  if
   Mr. Jansing were to retire and the annual retainer  payable by the funds were
   the same as it is today,  he would  receive  annual  retirement  benefits  of
   $50,000.


Except where indicated,  the following  executive officers of the Fund have been
associated  with Lord  Abbett for over five  years.  Of the  following,  Messrs.
Carper,  Hilstad,  Morris,  Nordberg and Walsh are partners of Lord Abbett;  the
others are employees:  Stephen J. McGruder,  Executive Vice  President,  age 54;
Paul A. Hilstad,  age 55, Vice  President and Secretary  (with Lord Abbett since
1995 - formerly  Senior Vice President and General  Counsel of American  Capital
Management & Research,  Inc.); Daniel E. Carper, age 46; Lawrence H. Kaplan, age
41 (with Lord Abbett since 1997 - formerly  Vice  President and Chief Counsel of
Salomon  Brothers Asset  Management Inc from 1995 to 1997,  prior thereto Senior
Vice President, Director and General Counsel of Kidder Peabody Asset Management,
Inc.);  Thomas F. Konop,  age 56; Robert G. Morris,  age 53; A. Edward Oberhaus,
age 38; Keith F. O'Connor,  age 42; John J. Walsh, age 62, Vice Presidents;  and
Donna M. McManus,  age 37,  Treasurer  (with Lord Abbett since 1996,  formerly a
Senior Manager at Deloitte & Touche LLP).


The Fund's By-Laws provide that the Fund shall not hold an annual meeting of its
stockholders  in any year unless one or more matters are required to be acted on
by  stockholders  under the Act, as amended (the "Act"),  or unless  called by a
majority  of the Board of  Directors  or by  stockholders  holding  at least one
quarter  of the  stock  of the  Fund  outstanding  and  entitled  to vote at the
meeting.  When any such  annual  meeting is held,  the  stockholders  will elect
directors and vote on the approval of the independent auditors of the Fund.

As of May 1, 1998, our officers and directors,  as a group, owned less than1% of
our outstanding shares.

                                       3.
                     Investment Advisory and Other Services

As described under "Our Management" in the Prospectus, Lord Abbett is the Fund's
investment  manager.  Of the twelve  general  partners of Lord  Abbett,  six are
officers and/or directors of the Fund: Daniel E. Carper,  Robert S. Dow, Paul A.
Hilstad,  Robert G. Morris,  E. Wayne Nordberg and John J. Walsh.  The six other
general  partners are:  Stephen Allen,  Zane Brown,  Daria L. Foster,  W. Thomas
Hudson, Michael B. McLaughlin, and Robert J. Noelke. The address of each partner
is The General Motors Building, 767 Fifth Avenue, New York, New York 10153-0203.

<PAGE>
The services  performed by Lord Abbett are described  under "Our  Management" in
the  Prospectus.  Under the Management  Agreement,  we are obligated to pay Lord
Abbett a monthly fee,  based on average daily net assets for each month,  at the
annual  rate of .75 of 1% of the  portion  of our net  assets  not in  excess of
$100,000,000  and  .50 of 1% of  such  assets  over  $100,000,000.  This  fee is
allocated  among Class A, B, C and P shares based on the classes'  proportionate
shares of such average daily net assets.  For the fiscal years ended January 31,
1998,  1997 and 1996,  the  management  fees  paid to Lord  Abbett  amounted  to
$2,325,894, $1,579,214, and $1,098,965 respectively.

We pay all expenses not  expressly  assumed by Lord Abbett,  including,  without
limitation,  12b-1 expenses,  outside directors' fees and expenses,  association
membership  dues,  legal  and  auditing  fees,  taxes,   transfer  and  dividend
disbursing  agent  fees,  shareholder  servicing  costs,  expenses  relating  to
shareholder  meetings,  expenses  of  preparing,   printing  and  mailing  stock
certificates and shareholder  reports,  expenses of registering our shares under
federal and state securities laws,  expenses of preparing,  printing and mailing
prospectuses to existing shareholders,  insurance premiums,  brokerage and other
expenses connected with executing portfolio security transactions.

Deloitte & Touche LLP, Two World Financial Center, New York, New York 10281, are
the  independent  auditors of the Fund and must be approved at least annually by
our Board of Directors to continue in such capacity. They perform audit services
for the Fund including the examination of financial  statements  included in our
annual report to shareholders.

The Bank of New York ("BNY"),  48 Wall Street,  New York, New York 10286, is the
Fund's  custodian.  In accordance with the  requirements of Rule 17f-5 under the
Act, the Fund's  directors  have  approved  arrangements  permitting  the Fund's
foreign  assets not held by BNY or its  foreign  branches  to be held by certain
qualified foreign banks and depositories.

                                       4.
                             Portfolio Transactions

Our policy is to obtain best execution on all our portfolio transactions,  which
means that we seek to have purchases and sales of portfolio  securities executed
at the most favorable prices, considering all costs of the transaction including
brokerage  commissions  and dealer markups and markdowns and taking into account
the full range and quality of the brokers'  services.  Consistent with obtaining
best execution,  we generally pay, as described below, a higher  commission than
some brokers might charge on the same  transactions.  Our policy with respect to
best  execution  governs the  selection  of brokers or dealers and the market in
which the  transaction is executed.  To the extent  permitted by law, we may, if
considered  advantageous,   make  a  purchase  from  or  sale  to  another  Lord
Abbett-sponsored fund without the intervention of any broker-dealer.

Broker-dealers  are selected on the basis of their  professional  capability and
the value and quality of their brokerage and research  services.  Normally,  the
selection is made by traders who are officers of the Fund and also are employees
of Lord  Abbett.  These  traders do the  trading as well for other  accounts  --
investment  companies  (of which they are also  officers)  and other  investment
clients -- managed by Lord  Abbett.  They are  responsible  for  obtaining  best
execution.

We pay a  commission  rate  that we  believe  is  appropriate  to  give  maximum
assurance  that our brokers  will provide us, on a  continuing  basis,  with the
highest level of brokerage services  available.  While we do not always seek the
lowest possible commissions on particular trades, we believe that our commission
rates are in line with the rates that many other  institutions  pay. Our traders
are  authorized  to pay  brokerage  commissions  in excess of those  that  other
brokers might accept on the same transactions in recognition of the value of the
services  performed  by the  executing  brokers,  viewed in terms of either  the
particular  transaction  or the  overall  responsibilities  of Lord  Abbett with
respect to us and the other accounts they manage.  Such services include showing
us trading  opportunities  including  blocks,  a willingness and ability to take
positions in  securities,  knowledge of a particular  security or market  proven
ability to handle a particular type of trade, confidential treatment, promptness
and reliability.

<PAGE>
Some of these brokers also provide research  services at least some of which are
useful to Lord Abbett in their overall  responsibilities  with respect to us and
the other accounts they manage. Research includes the furnishing of analyses and
reports concerning issuers, industries, securities, economic factors and trends,
portfolio  strategy and the  performance  of accounts and trading  equipment and
computer software  packages,  acquired from third-party  suppliers,  that enable
Lord Abbett to access various  information  bases.  Such services may be used by
Lord Abbett in servicing all their  accounts,  and not all of such services will
necessarily  be used by Lord Abbett in connection  with their  management of the
Fund; conversely,  such services furnished in connection with brokerage on other
accounts  managed by Lord Abbett may be used in connection with their management
of the  Fund,  and not all of such  services  will  necessarily  be used by Lord
Abbett in connection  with their advisory  services to such other  accounts.  We
have been advised by Lord Abbett that  research  services  received from brokers
cannot be allocated to any  particular  account,  are not a substitute  for Lord
Abbett's  services but are  supplemental  to their own research  effort and when
utilized,  are subject to internal  analysis  before being  incorporated by Lord
Abbett into their investment  process.  As a practical  matter,  it would not be
possible for Lord Abbett to generate all of the information  presently  provided
by brokers.  While  receipt of research  services from  brokerage  firms has not
reduced Lord Abbett's  normal research  activities,  the expenses of Lord Abbett
could be  materially  increased  if it  attempted  to generate  such  additional
information  through its own staff and  purchased  such  equipment  and software
packages directly from the suppliers.

No commitments  are made  regarding the  allocation of brokerage  business to or
among brokers, and trades are executed only when they are dictated by investment
decisions of the Fund to purchase or sell portfolio securities.

If two or more  broker-dealers are considered capable of offering the equivalent
likelihood of best execution,  the  broker-dealer who has sold our shares and/or
shares of other Lord Abbett-sponsored funds may be preferred.

If other  clients of Lord Abbett buy or sell the same  security at the same time
as we do, transactions will, to the extent  practicable,  be allocated among all
participating  accounts  in  proportion  to the amount of each order and will be
executed  daily until filled so that each account  shares the average  price and
commission  cost of each day.  Other  clients  who direct  that their  brokerage
business be placed with  specific  brokers or who invest  through wrap  accounts
introduced to Lord Abbett by certain brokers may not participate  with us in the
buying and selling of the same  securities as described  above. If these clients
wish to buy or sell the same security as we do, they may have their transactions
executed at times different from our  transactions  and thus may not receive the
same price or incur the same commission cost as we do.

We will not seek  "reciprocal"  dealer  business  (for the  purpose of  applying
commissions  in whole or in part for our benefit or  otherwise)  from dealers as
consideration for the direction to them of portfolio business.

During the fiscal  years ended  January 31, 1998,  1997 and 1996,  we paid total
commissions to  independent  dealers of  $1,930,696,  $1,696,590,  and $981,015,
respectively.

                                       5.
                             Purchases, Redemptions
                            and Shareholder Services

The Fund values its portfolio  securities at market value as of the close of the
NYSE. Market value will be determined as follows:  securities listed or admitted
to trading  privileges  on the New York or  American  Stock  Exchange  or on the
NASDAQ National  Market System are valued at the last sales price,  or, if there
is no sale on that day, at the mean between the last bid and asked  prices,  or,
in the case of bonds, in the over-the-counter  market if, in the judgment of the
Fund's  officers,  that market more accurately  reflects the market value of the
bonds.  Over-the-counter  securities  not traded on the NASDAQ  National  Market
System are valued at the mean between the last bid and asked prices.  Securities
for which market  quotations  are not  available are valued at fair market value
under procedures approved by the Board of Directors.

<PAGE>
Information  concerning  how we value our shares for the purchase and redemption
of  our  shares  is  described  in  the   Prospectus   under   "Purchases"   and
"Redemptions," respectively.

As  disclosed  in the  Prospectus,  we  calculate  our net  asset  value and are
otherwise  open for business on each day that the NYSE is open for trading.  The
NYSE is closed on Saturdays and Sundays and the following holidays -- New Year's
Day,  Martin Luther King Jr. Day,  Presidents'  Day, Good Friday,  Memorial Day,
Independence Day, Labor Day, Thanksgiving and Christmas.

The  maximum  offering  price of our  Class A shares  on  January  31,  1998 was
computed as follows:

 Net asset value per share (net assets divided by
 shares outstanding)..............................................$14.27

 Maximum offering price per share (net asset value
 divided by .9425)................................................$15.14

The net asset value per share for the Class B, C and P shares is  determined  in
the same  manner  as for the  Class A  shares  (net  assets  divided  by  shares
outstanding). Our Class B, C and P shares are sold at net asset value.

The Fund has entered into a distribution agreement with Lord Abbett Distributor,
a New York limited  liability  company and subsidiary of Lord Abbett under which
Lord Abbett  Distributor is obligated to use its best efforts to find purchasers
for the shares of the Fund, and to make  reasonable  efforts to sell Fund shares
so long as, in Lord Abbett Distributor's  judgment,  a substantial  distribution
can be obtained by reasonable efforts.

For the last three fiscal  years,  Lord Abbett,  as our  principal  underwriter,
received  net  commissions  after  allowance of a portion of the sales charge to
independent dealers with respect to Class A shares as follows:


                                      Year Ended January 31

                                1998           1997              1996
                               ----           ----              ----
Gross sales charge        $3,195,724        $2,604,448         $747,825

Amount allowed to dealers $2,768,167        $2,285,132         $679,143
                          ----------        ----------         --------
Net commissions
received by Lord Abbett   $427,557          $319,316            $68,682
                                   

CONVERSION  OF CLASS B SHARES.  The  conversion  of Class B shares on the eighth
anniversary  of their purchase is subject to the  continuing  availability  of a
private  letter  ruling  from the  Internal  Revenue  Service,  or an opinion of
counsel or tax adviser, to the effect that the conversion of Class B shares does
not  constitute a taxable event for the holder under Federal  income tax law. If
such  a  revenue  ruling  or  opinion  is no  longer  available,  the  automatic
conversion  feature may be suspended,  in which event no further  conversions of
Class B shares would occur while such  suspension  remained in effect.  Although
Class B shares  could  then be  exchanged  for  Class A shares  on the  basis of
relative net asset value of the two classes,  without the  imposition of a sales
charge or fee, such exchange could constitute a taxable event for the holder.


ALTERNATIVE SALES ARRANGEMENTS

CLASSES OF SHARES.  The Fund offers investors five different  classes of shares.
This Statement of Additional Information offers four of those classes designated
Class A, B, C and P. The different  classes of shares  represent  investments in
the same portfolio of securities but are subject to different  expenses and will
likely have different share prices. Investors should read this section carefully
to  determine  which  class  represents  the best  investment  option  for their
particular situation.

<PAGE>
CLASS A SHARES.  If you buy Class A shares,  you pay an initial  sales charge on
investments  of less than $1 million (or on investments  for  employer-sponsored
retirement  plans under the Internal  Revenue Code  (hereinafter  referred to as
"Retirement Plans") with less than 100 eligible employees or on investments that
do not  qualify to be under a "special  retirement  wrap  program"  as a program
sponsored  by an  authorized  institution  showing  one or more  characteristics
distinguishing  it, in the opinion of Lord Abbett Distributor from a mutual fund
wrap fee program). If you purchase Class A shares as part of an investment of at
least $1 million (or for Retirement  Plans with at least 100 eligible  employees
or under a  special  retirement  wrap  program)  in  shares  of one or more Lord
Abbett-sponsored  funds,  you will not pay an initial sales  charge,  but if you
redeem  any of those  shares  within 24 months  after the month in which you buy
them, you may pay to the Fund a contingent  deferred sales charge ("CDSC") of 1%
except for redemptions under a special  retirement wrap program.  Class A shares
are subject to service and  distribution  fees that are  currently  estimated to
total  annually  approximately  0.28 of 1% of the annual net asset  value of the
Class A shares. The initial sales charge rates, the CDSC and the Rule 12b-1 plan
applicable to the Class A shares are described in "Buying Class A Shares" below.

CLASS B SHARES.  If you buy Class B shares,  you pay no sales charge at the time
of  purchase,  but if you redeem your  shares  before the sixth  anniversary  of
buying them, you will normally pay a CDSC to Lord Abbett  Distributor LLC ("Lord
Abbett  Distributor").  That CDSC varies  depending  on how long you own shares.
Class B shares are subject to service and distribution fees at an annual rate of
1% of the  annual net asset  value of the Class B shares.  The CDSC and the Rule
12b-1 plan applicable to the Class B shares are described below.

CLASS C SHARES.  If you buy Class C shares,  you pay no sales charge at the time
of  purchase,  but if you redeem your  shares  before the first  anniversary  of
buying  them,  you will  normally  pay the Fund a CDSC of 1%. Class C shares are
subject to service and  distribution  fees at an annual rate of 1% of the annual
net  asset  value of the  Class C  shares.  The CDSC  and the  Rule  12b-1  plan
applicable to the C shares are described below.

CLASS P SHARES.  If you buy Class P shares,  you pay no sales charge at the time
of purchase,  and if you redeem your shares you pay no CDSC.  Class P shares are
subject to service and  distribution  fees at an annual rate of .45 of 1% of the
average  daily  net  asset  value of the Class P  shares.  The Rule  12b-1  plan
applicable  to the  Class P  shares  is  described  below.  Class P  shares  are
available to a limited number of investors.

Which  Class of Shares  Should You  Choose?  Once you decide that the Fund is an
appropriate  investment  for you,  the  decision  as to which class of shares is
better  suited to your needs  depends  on a number of  factors  which you should
discuss with your financial adviser. The Fund's class-specific  expenses and the
effect of the different  types of sales charges on your  investment  will affect
your investment  results over time. The most important  factors are how much you
plan to invest and how long you plan to hold your investment.  If your goals and
objectives  change over time and you plan to  purchase  additional  shares,  you
should  re-evaluate those factors to see if you should consider another class of
shares.

In the following discussion, to help provide you and your financial adviser with
a framework in which to choose a class,  we have made some  assumptions  using a
hypothetical  investment  in the Fund. We used the sales charge rates that apply
to Class  A,  Class B and  Class C, and  considered  the  effect  of the  higher
distribution  fees on Class B and  Class C  expenses  (which  will  affect  your
investment  return). Of course, the actual performance of your investment cannot
be predicted and will vary, based on the Fund's actual investment  returns,  the
operating  expenses  borne by each class of shares,  and the class of shares you
purchase.  The factors briefly discussed below are not intended to be investment
advice,  guidelines  or  recommendations,   because  each  investor's  financial
considerations are different. The discussion below of the factors to consider in
purchasing a particular  class of shares assumes that you will purchase only one
class of shares and not a combination of shares of different classes.

<PAGE>
HOW LONG DO YOU EXPECT TO HOLD YOUR  INVESTMENT?  While future  financial  needs
cannot be  predicted  with  certainty,  knowing how long you expect to hold your
investment  will assist you in selecting the  appropriate  class of shares.  For
example,  over time, the reduced sales charges available for larger purchases of
Class A shares may offset the effect of paying an initial  sales  charge on your
investment,  compared to the effect over time of higher class-specific  expenses
on Class B or Class C shares for which no initial sales charge is paid.  Because
of the effect of  class-based  expenses,  your choice  should also depend on how
much you plan to invest.

INVESTING FOR THE SHORT TERM. If you have a short-term  investment horizon (that
is,  you plan to hold your  shares  for not more  than six  years),  you  should
probably  consider  purchasing  Class A or Class C shares  rather  than  Class B
shares.  This is because of the effect of the Class B CDSC if you redeem  before
the sixth  anniversary  of your  purchase,  as well as the effect of the Class B
distribution  fee on the  investment  return for that  class in the short  term.
Class C shares might be the  appropriate  choice  (especially for investments of
less than $100,000), because there is no initial sales charge on Class C shares,
and the CDSC does not apply to amounts you redeem after holding them one year.

However,  if you plan to invest more than $100,000 for the short term,  then the
more you invest and the more your investment horizon increases toward six years,
the more  attractive  the Class A share  option may become.  This is because the
annual  distribution  fee on Class C shares  will have a greater  impact on your
account over the longer term than the reduced  front-end sales charge  available
for  larger  purchases  of Class A shares.  For  example,  Class A might be more
appropriate  than Class C for  investments of more than $100,000  expected to be
held for 5 or 6 years (or more).  For investments  over $250,000  expected to be
held 4 to 6 years (or more),  Class A shares may become  more  appropriate  than
Class  C. If you are  investing  $500,000  or  more,  Class  A may  become  more
desirable as your investment horizon approaches 3 years or more.

For most investors who invest $1 million or more or for Retirement Plans with at
least 100 eligible employees or for investments pursuant to a special retirement
wrap program, in most cases Class A shares will be the most advantageous choice,
no matter how long you intend to hold your shares.  For that reason,  it may not
be suitable for you to place a purchase  order for Class B shares of $500,000 or
more or a purchase  order for Class C shares of $1,000,000 or more. In addition,
it may not be  suitable  for you to place an order for Class B or C shares for a
Retirement Plan with at least 100 eligible employees or for a special retirement
wrap program. You should discuss this with your financial advisor.

INVESTING  FOR THE LONGER TERM.  If you are  investing  for the longer term (for
example,  to provide  for future  college  expenses  for your  child) and do not
expect to need access to your money for seven years or more,  Class B shares may
be an appropriate  investment  option, if you plan to invest less than $100,000.
If you plan to invest more than $100,000 over the long term, Class A shares will
likely be more  advantageous than Class B shares or Class C shares, as discussed
above,  because of the effect of the expected  lower expenses for Class A shares
and the reduced initial sales charges available for larger  investments in Class
A shares under the Fund's Rights of Accumulation.  Of course, these examples are
based on approximations of the effect of current sales charges and expenses on a
hypothetical  investment  over  time,  and  should  not be  relied  on as  rigid
guidelines.

ARE THERE  DIFFERENCES  IN ACCOUNT  FEATURES  THAT MATTER TO YOU?  Some  account
features  are  available  in whole or in part to  Class A,  Class B and  Class C
shareholders.  Other features (such as Systematic Withdrawal Plans) might not be
advisable in non-Retirement  Plan accounts for Class B shareholders  (because of
the effect of the CDSC on the entire  amount of a  withdrawal  if it exceeds 12%
annually) and in any account for Class C  shareholders  during the first year of
share  ownership  (due  to the  CDSC  on  withdrawals  during  that  year).  See
"Systematic  Withdrawal Plan" under "Shareholder Services" in the Prospectus for
more  information  about the 12% annual waiver of the CDSC. You should carefully
review how you plan to use your  investment  account before deciding which class
of shares you buy. For  example,  the  dividends  payable to Class B and Class C
shareholders  will be  reduced  by the  expenses  borne  solely by each of these
classes, such as the higher distribution fee to which Class B and Class C shares
are subject, as described below.

<PAGE>
HOW DOES IT AFFECT PAYMENTS TO MY BROKER?  A salesperson,  such as a broker,  or
any other person who is entitled to receive compensation for selling Fund shares
may  receive  different  compensation  for  selling  one class than for  selling
another class. As discussed in more detail below, such compensation is primarily
paid at the time of sale in the case of  Class A and B shares  and is paid  over
time, so long as shares remain outstanding, in the case of Class C shares. It is
important that investors understand that the primary purpose of the CDSC for the
Class B shares  and the  distribution  fee for Class B and Class C shares is the
same as the purpose of the front-end sales charge on sales of Class A shares: to
compensate  brokers and other persons selling such shares. The CDSC, if payable,
supplements  the Class B  distribution  fee and reduces the Class C distribution
fee expenses for the Fund and Class C shareholders.

CLASS A, B, C AND P RULE 12B-1 PLANS. As described in the  Prospectus,  the Fund
has adopted a Distribution Plan and Agreement  pursuant to Rule 12b-1 of the Act
for each of the four Fund Classes:  the "A Plan," the "B Plan," the"C Plan," and
the  "P  Plan,"  respectively.  In  adopting  each  Plan  and in  approving  its
continuance,  the Board of Directors  has  concluded  that there is a reasonable
likelihood  that each Plan will  benefit  its  respective  Class and such Class'
shareholders.  The expected benefits include greater sales and lower redemptions
of shares of each Class,  which should allow each Class to maintain a consistent
cash  flow,  and a higher  quality  of service  to  shareholders  by  authorized
institutions than would otherwise be the case. During the last fiscal year ended
January 31, 1998,  the Fund  accrued or paid  through Lord Abbett to  authorized
institutions  $998,221,  $244,235,  $138,510,  and $203  under the A, B, C and P
Plans,  respectively.  Lord Abbett used all amounts received under each Plan for
payments to dealers for (i) providing continuous services to shareholders,  such
as  answering   shareholder   inquiries,   maintaining  records,  and  assisting
shareholders  in  making  redemptions,   transfers,   additional  purchases  and
exchanges and (ii) their assistance in distributing shares of the Fund.

Each Plan  requires  the  directors  to review,  on a quarterly  basis,  written
reports of all amounts expended  pursuant to the Plan and the purposes for which
such  expenditures  were made.  Each Plan shall  continue  in effect only if its
continuance is specifically approved at least annually by vote of the directors,
including a majority of the directors who are not interested persons of the Fund
and who have no direct or indirect  financial  interest in the  operation of the
Plan or in any  agreements  related to the Plan ("outside  directors"),  cast in
person at a meeting called for the purpose of voting on the Plan. No Plan may be
amended to  increase  materially  above the limits set forth  therein the amount
spent for distribution expenses thereunder without approval by a majority of the
outstanding  voting  securities  of the  applicable  class and the approval of a
majority of the directors,  including a majority of the outside directors.  Each
Plan  may be  terminated  at any  time  by  vote of a  majority  of the  outside
directors or by vote of a majority of its Class's outstanding voting securities.

CONTINGENT  DEFERRED SALES CHARGES. A Contingent  Deferred Sales Charge ("CDSC")
(i) applies  regardless of class, (ii) will not apply to shares purchased by the
reinvestment of dividends or capital gains distributions; (iii) will be assessed
on the lesser of the net asset value of the shares at the time of  redemption or
the original  purchase  price and (iv) will not be imposed on (a) the  aggregate
dollar  amount  of your  account,  in the  case of Class A  shares,  and (b) the
percentage  of  each  share  redeemed,  in the  case of  class  B and C  shares,
representing  an increase in net asset  value over the  initial  purchase  price
(including  increases  due to the  reinvestment  of dividends  and capital gains
distributions)  and upon  early  redemption  of  shares.  In the case of Class A
shares,  this increase is represented by shares having an aggregate dollar value
in  your  account.  In the  case of  Class  B and C  shares,  this  increase  is
represented by that  percentage of each share redeemed where the net asset value
exceeded  the  initial  purchase  price.  Class  A  Shares.  As  stated  in  the
Prospectus,  subject to certain exceptions, a CDSC of 1% is imposed with respect
to those Class A shares (or Class A shares of another Lord Abbett-sponsored fund
or series acquired  through  exchange of such shares) on which the Fund has paid
the one-time  distribution fee of 1% if such shares are redeemed out of the Lord
Abbett-sponsored  family of funds  within a period of 24 months  from the end of
the month in which the original sale occurred.

CLASS B SHARES. As stated in the Prospectus,  subject to certain exceptions,  if
Class B shares  (or  Class B shares of  another  Lord  Abbett-sponsored  fund or
series  acquired  through  exchange of such shares) are redeemed out of the Lord
Abbett-sponsored  family of funds for cash before the sixth anniversary of their
purchase, a CDSC will be deducted from the redemption proceeds. The Class B CDSC
is paid to Lord Abbett  Distributor  to reimburse its  expenses,  in whole or in
part, for providing distribution-related services to the Fund in connection with
the sale of Class B shares.

<PAGE>
To determine  whether the CDSC applies to a redemption,  the Fund redeems shares
in the following  order:  (1) shares  acquired by  reinvestment of dividends and
capital gains  distributions,  (2) shares held on or after the sixth anniversary
of  their  purchase,   and  (3)  shares  held  the  longest  before  such  sixth
anniversary.

The amount of the CDSC will depend on the number of years since you invested and
the dollar amount being redeemed, according to the following schedule:

Anniversary of the Day on                      Contingent Deferred Sales Charge
Which the Purchase Order Was Accepted      on Redemptions (As % of Amount 
                                           Subject to Charge)
Before the 1st........................................................5.0%
On the 1st, before the 2nd............................................4.0%
On the 2nd, before the 3rd............................................3.0%
On the 3rd, before the 4th............................................3.0%
On the 4th, before the 5th............................................2.0%
On the 5th, before the 6th ...........................................1.0%
On or after the 6th anniversary.......................................None

In the table, an  "anniversary" is the 365th day subsequent to the acceptance of
a purchase  order or a prior  anniversary.  All purchases are considered to have
been made on the business day on which the purchase order was accepted.

CLASS C SHARES. As stated in the Prospectus,  subject to certain exceptions,  if
Class C shares  are  redeemed  for cash  before the first  anniversary  of their
purchase,  the  redeeming  shareholder  will be  required  to pay to the Fund on
behalf of Class C shares a CDSC of 1% of the lower of cost or the then net asset
value of Class C shares  redeemed.  If such shares are  exchanged  into the same
class of another Lord Abbett-sponsored fund and subsequently redeemed before the
first  anniversary of their original  purchase,  the charge will be collected by
the other fund on behalf of this Fund's Class C shares.

GENERAL.  The  percentage (1% in the case of Class A and C shares and 5% through
1% in the case of Class B shares) used to calculate  CDSCs  described  above for
the Class A, Class B and Class C shares is sometimes  hereinafter referred to as
the "Applicable Percentage."

With respect to Class A and Class B shares, no CDSC is payable on redemptions by
participants or beneficiaries from employer-sponsored retirement plans under the
Internal  Revenue  Code  for  benefit  payments  due  to  plan  loans,  hardship
withdrawals,  death,  retirement or  separation  from service and for returns of
excess contributions to retirement plan sponsors. With respect to Class A shares
purchased pursuant to a special  retirement wrap program,  no CDSC is payable on
redemptions  which continue as investments in another fund  participating in the
program.  With respect to Class B shares, no CDSC is payable for redemptions (i)
in connection with Systematic Withdrawal Plan and Div-Move services as described
below under those headings, (ii) in connection with mandatory distribution under
403(b)  plans  and IRAs and  (iii) in  connection  with  death of an  individual
shareholder (a natural person).  In the case of Class A and Class C shares,  the
CDSC is received by the Fund and is  intended to  reimburse  all or a portion of
the amount paid by the Fund if the shares are  redeemed  before the Fund has had
an  opportunity  to  realize  the  anticipated  benefits  of having a  long-term
shareholder  account  in the Fund.  In the case of Class B  shares,  the CDSC is
received by Lord Abbett Distributor and is intended to reimburse its expenses of
providing distribution-related services to the Fund (including recoupment of the
commission  payments made) in connection  with the sale of Class B shares before
Lord  Abbett  Distributor  has had an  opportunity  to realize  its  anticipated
reimbursement  by having such a long-term  shareholder  account subject to the B
Plan distribution fee.

<PAGE>
The other funds and series which participate in the Telephone Exchange Privilege
(except (a) Lord Abbett U.S.  Government  Securities  Money  Market  Fund,  Inc.
("GSMMF"),  (b)  certain  series of Lord  Abbett  Tax-Free  Income Fund and Lord
Abbett  Tax-Free  Income Trust for which a Rule 12b-1 Plan is not yet in effect,
and (c) any authorized  institution's  affiliated  money market fund  satisfying
Lord  Abbett  Distributor  as to certain  omnibus  account  and other  criteria,
hereinafter  referred  to  as  an  "authorized  money  market  fund"  or  "AMMF"
(collectively,  the "Non-12b-1 Funds")) have instituted a CDSC for each class on
the same terms and conditions.  No CDSC will be charged on an exchange of shares
of the same class between Lord Abbett funds or between such funds and AMMF. Upon
redemption of shares out of the Lord Abbett family of funds or out of AMMF,  the
CDSC  will be  charged  on  behalf  of and  paid:  (i) to the fund in which  the
original purchase  (subject to a CDSC) occurred,  in the case of the Class A and
Class C shares and (ii) to Lord Abbett  Distributor if the original purchase was
subject to a CDSC, in the case of the Class B shares.  Thus, if shares of a Lord
Abbett fund are  exchanged for shares of the same class of another such fund and
the shares of the same class  tendered  ("Exchanged  Shares")  are  subject to a
CDSC,  the CDSC will carry over to the shares of the same class being  acquired,
including GSMMF and AMMF ("Acquired  Shares").  Any CDSC that is carried over to
Acquired  Shares is calculated as if the holder of the Acquired  Shares had held
those shares from the date on which he or she became the holder of the Exchanged
Shares.  Although the Non-12b-1  Funds will not pay a distribution  fee on their
own shares, and will, therefore,  not impose their own CDSC, the Non-12b-1 Funds
will collect the CDSC (a) on behalf of other Lord Abbett  funds,  in the case of
the Class A and Class C shares and (b) on behalf of Lord Abbett Distributor,  in
the case of the Class B shares. Acquired Shares held in GSMMF and AMMF which are
subject to a CDSC will be  credited  with the time such shares are held in GSMMF
but will not be credited with the time such shares are held in AMMF.  Therefore,
if your Acquired Shares held in AMMF qualified for no CDSC or a lower Applicable
Percentage at the time of exchange into AMMF,  that  Applicable  Percentage will
apply to  redemptions  for cash from AMMF,  regardless of the time you have held
Acquired Shares in AMMF.

In no event will the amount of the CDSC exceed the Applicable  Percentage of the
lesser of (i) the net asset value of the shares  redeemed  or (ii) the  original
cost of such  shares (or of the  Exchanged  Shares for which  such  shares  were
acquired).  No CDSC  will be  imposed  when  the  investor  redeems  (i)  shares
representing an aggregate dollar amount of your account,  in the case of Class A
shares, (ii) that percentage of each share redeemed,  in the case of Class B and
C shares, derived from increases in the value of the shares above the total cost
of shares being redeemed due to increases in net asset value,  (iii) shares with
respect to which no Lord  Abbett fund paid a 12b-1 fee and, in the case of Class
B shares, Lord Abbett Distributor paid no sales charge or service fee (including
shares  acquired  through  reinvestment  of dividend  income and  capital  gains
distributions) or (iv) shares which,  together with Exchanged Shares,  have been
held  continuously for 24 months from the end of the month in which the original
sale  occurred  (in the case of Class A  shares);  for six years or more (in the
case  of  Class B  shares)  and for one  year or more  (in the  case of  Class C
shares). In determining whether a CDSC is payable, (a) shares not subject to the
CDSC will be redeemed  before  shares  subject to the CDSC and (b) of the shares
subject to a CDSC, those held the longest will be the first to be redeemed.

EXCHANGES.  The Prospectus briefly describes the Telephone  Exchange  Privilege.
You may  exchange  some or all of your shares of any class for those in the same
class of: (i) Lord Abbett-sponsored funds currently offered to the public with a
sales charge  (front-end,  back-end or level ), (ii) GSMMF or (iii) AMMF, to the
extent  offers  and  sales  may be made in  your  state.  You  should  read  the
prospectus of the other fund before exchanging. In establishing a new account by
exchange, shares of the Fund being exchanged must have a value equal to at least
the  minimum  initial  investment  required  for the other  fund into  which the
exchange is made.

Shareholders in other Lord  Abbett-sponsored  funds and AMMF have the same right
to  exchange  their  shares for the  corresponding  class of the Fund's  shares.
Exchanges  are based on relative  net asset values on the day  instructions  are
received by the Fund in Kansas City if the  instructions  are received  prior to
the close of the NYSE in proper form. No sales charges are imposed except in the
case of  exchanges  out of  GSMMF or AMMF  (unless  a sales  charge  (front-end,
back-end or level) was paid on the initial investment in a Lord Abbett-sponsored
fund).  Exercise of the exchange privilege will be treated as a sale for federal
income tax purposes, and, depending on the circumstances,  a gain or loss may be
recognized. In the case of an exchange of shares that have been held for 90 days
or less where no sales charge is payable on the  exchange,  the  original  sales
charge incurred with respect to the exchanged  shares will be taken into account
in  determining  gain or loss on the  exchange  only to the extent  such  charge
exceeds the sales charge that would have been payable on the acquired shares had
they been acquired for cash rather than by exchange. The portion of the original
sales charge not so taken into  account will  increase the basis of the acquired
shares.

<PAGE>
Shareholders have the exchange  privilege unless they refuse it in writing.  You
should  not view the  exchange  privilege  as a means for  taking  advantage  of
short-term swings in the market,  and we reserve the right to terminate or limit
the privilege of any shareholder who makes frequent exchanges.  We can revoke or
modify the privilege for all shareholders upon 60 days' prior notice.  "Eligible
Funds" are AMMF and other Lord Abbett-sponsored funds which are eligible for the
exchange  privilege,  except Lord Abbett Series Fund  ("LASF")  which offers its
shares only in connection with certain variable annuity  contracts,  Lord Abbett
Equity  Fund  ("LAEF")  which is not issuing  shares,  and series of Lord Abbett
Research Fund not offered to the general public ("LARF").

STATEMENT  OF  INTENTION.  Under  the terms of the  Statement  of  Intention  as
described  in the  Prospectus,  you may invest  $100,000 or more over a 13-month
period in shares of a Lord  Abbett-sponsored  fund  (other  than shares of LAEF,
LASF, LARF,  GSMMF and AMMF,  unless holdings in GSMMF and AMMF are attributable
to shares exchanged from a Lord  Abbett-sponsored fund offered with a front-end,
back-end or level sales charge).  Shares  currently owned by you are credited as
purchases (at their current offering prices on the date the Statement is signed)
toward  achieving  the stated  investment  and reduced  initial sales charge for
Class A shares.  Class A shares valued at 5% of the amount of intended purchases
are escrowed and may be redeemed to cover the additional sales charge payable if
the  Statement  of  Intention is not  completed.  The  Statement of Intention is
neither a binding  obligation  on you to buy, nor on the Fund to sell,  the full
amount indicated.

RIGHTS OF ACCUMULATION.  As stated in the Prospectus,  purchasers (as defined in
the Prospectus) may accumulate their investment in Lord  Abbett-sponsored  funds
(other than LAEF, LARF,  LASF,  GSMMF, and AMMF unless holdings in GSMMF or AMMF
are attributable to shares exchanged from a Lord  Abbett-sponsored  fund offered
with a front-end,  back-end or level sales charge) so that a current investment,
plus the  purchaser's  holdings  valued at the current  maximum  offering price,
reach a level eligible for a discounted sales charge for Class A shares.

NET ASSET VALUE PURCHASES OF CLASS A SHARES.  As stated in the  Prospectus,  our
Class A shares may be purchased at net asset value by our  directors,  employees
of Lord Abbett,  employees of our  shareholder  servicing agent and employees of
any securities  dealer having a sales agreement with Lord Abbett who consents to
such   purchases  or  by  the  director  or  custodian   under  any  pension  or
profit-sharing plan or Payroll Deduction IRA established for the benefit of such
persons  or for the  benefit  of  employees  of any  national  securities  trade
organization  to which Lord Abbett  belongs or any company with an account(s) in
excess of $10  million  managed  by Lord  Abbett  on a  private-advisory-account
basis.  For purposes of this  paragraph,  the terms  "directors" and "employees"
include a director's or employee's  spouse  (including the surviving spouse of a
deceased director or employee). The terms "our directors" and "employees of Lord
Abbett" also include  retired  directors and employees and other family  members
thereof.Our  Class A shares also may be  purchased  at net asset value (a) at $1
million or more,  (b) with  dividends and  distributions  from Class A shares of
other Lord Abbett-sponsored funds, except for LARF, LAEF and LASF, (c) under the
loan  feature  of the Lord  Abbett-sponsored  prototype  403(b)  plan for  share
purchases  representing the repayment of principal and interest,  (d) by certain
authorized brokers,  dealers,  registered investment advisers or other financial
institutions who have entered into an agreement with Lord Abbett  Distributor in
accordance with certain standards approved by Lord Abbett Distributor, providing
specifically  for the use of our shares in particular  investment  products made
available for a fee to clients of such brokers,  dealers,  registered investment
advisers and other financial institutions ("mutual fund wrap fee program"),  (e)
by employees,  partners and owners of  unaffiliated  consultants and advisors to
Lord Abbett, Lord Abbett Distributor or Lord Abbett-sponsored  funds who consent
to such  purchase if such persons  provide  service to Lord Abbett,  Lord Abbett
Distributor  or such  funds on a  continuing  basis and are  familiar  with such
funds, (f) through Retirement Plans with at least 100 eligible employees and (g)
in connection with a merger,  acquisition or other  reorganization (h) through a
"special  retirement wrap program sponsored by an authorized  institution having
one or more  characteristics  distinguishing  it, in the  opinion of Lord Abbett
Distributor,  from a mutual fund wrap  program.  Such  characteristics  include,
among other things, the fact that an authorized  institution does not charge its
clients  any  fee of a  consulting  or  advisory  nature  that  is  economically
equivalent  to the  distribution  fee under the Class A 12b-1  Plan and the fact
that the program relates to a  participant-directed  Retirement Plan. Shares are
offered at net asset  value to these  investors  for the  purpose  of  promoting
goodwill with employees and others with whom Lord Abbett  Distributor and/or the
Fund has business relationships.

<PAGE>
REDEMPTIONS.  A  redemption  order is in proper form when it contains all of the
information and  documentation  required by the order form or  supplementally by
Lord Abbett Distributor or the Fund to carry out the order. The signature(s) and
any legal capacity of the signer(s) must be guaranteed by an eligible guarantor.
See the Prospectus for expedited redemption procedures.

The right to redeem and receive payment, as described in the Prospectus,  may be
suspended if the NYSE is closed  (except for  weekends or  customary  holidays),
trading on the NYSE is  restricted  or the  Securities  and Exchange  Commission
deems an emergency to exist.

Our Board of  Directors  may  authorize  redemption  of all of the shares in any
account  in which  there are  fewer  than 25  shares.  Before  authorizing  such
redemption, the Board must determine that it is in our economic best interest or
necessary  to  reduce   disproportionately   burdensome  expenses  in  servicing
shareholder  accounts.  At least 30 days'  prior  written  notice  will be given
before any such redemption,  during which time shareholders may avoid redemption
by bringing their accounts up to the minimum set by the Board.

DIV-MOVE. Under the Div-Move service described in the Prospectus, you can invest
the dividends paid on your account of any class into an existing  account of the
same class in any other  Eligible Fund. The account must be either your account,
a joint account for you and your spouse, a single account for your spouse,  or a
custodial  account for your minor child under the age of 21. You should read the
prospectus of the other fund before investing.

INVEST-A-MATIC.  The  Invest-A-Matic  method of investing in the Fund and/or any
other  Eligible Fund is described in the  Prospectus.  To avail yourself of this
method you must complete the application form,  selecting the time and amount of
your bank checking account  withdrawals and the funds for investment,  include a
voided, unsigned check and complete the bank authorization.

SYSTEMATIC  WITHDRAWAL  PLANS.  The Systematic  Withdrawal  Plan ("SWP") also is
described  in the  Prospectus.  You may  establish  a SWP if you own or purchase
uncertificated shares having a current offering price value of at least $10,000.
Lord Abbett  prototype  retirement  plans have no such minimum.  With respect to
Class B shares the CDSC will be waived on  redemptions  of up to 12% per year of
the current net asset value of your account at the time the SWP is  established.
For Class B share  redemptions  of over 12% per year, the CDSC will apply to the
entire  redemption.  Therefore,  please  contact  the  Fund  for  assistance  in
minimizing the CDSC in this situation.  With respect to Class C shares, the CDSC
will be waived on and after the first  anniversary  of their  purchase.  The SWP
involves  the  planned  redemption  of shares on a periodic  basis by  receiving
either  fixed or  variable  amounts at  periodic  intervals.  Since the value of
shares  redeemed  may be more or  less  than  their  cost,  gain or loss  may be
recognized for income tax purposes on each periodic payment.  Normally,  you may
not make  regular  investments  at the same  time you are  receiving  systematic
withdrawal  payments because it is not in your interest to pay a sales charge on
new  investments  when in  effect  a  portion  of that  new  investment  is soon
withdrawn.  The minimum investment accepted while a withdrawal plan is in effect
is  $1,000.  The SWP may be  terminated  by you or by us at any time by  written
notice.

RETIREMENT  PLANS.  The Prospectus  indicates the types of retirement  plans for
which Lord Abbett provides forms and  explanations.  Lord Abbett makes available
the retirement  plan forms including  401(k) plans and custodial  agreements for
IRAs (Individual Retirement Accounts, including Traditional, Education, Roth and
SIMPLE  IRAs and  Simplified  Employee  Pensions),  403(b)  plans and  qualified
pension and  profit-sharing  plans.  The forms name  Investors  Fiduciary  Trust
Company as custodian and contain specific  information about the plans excluding
401(k) plans.  Explanations of the eligibility  requirements,  annual  custodial
fees and  allowable tax  advantages  and penalties are set forth in the relevant
plan  documents.  Adoption of any of these plans should be on the advice of your
legal counsel or qualified tax adviser.
<PAGE>

                                       6.
                                Past Performance

The Fund  computes the average  annual  compounded  rate of total return  during
specified  periods that would equate the initial  amount  invested to the ending
redeemable value of such investment by adding one to the computed average annual
total return, raising the sum to a power equal to the number of years covered by
the  computation  and  multiplying  the result by one  thousand  dollars,  which
represents a hypothetical initial investment.  The calculation assumes deduction
of the  maximum  sales  charge (as  described  in the next  paragraph)  from the
initial amount  invested and  reinvestment  of all income  dividends and capital
gains  distributions on the reinvestment dates at prices calculated as stated in
the Prospectus. The ending redeemable value is determined by assuming a complete
redemption at the end of the period  covered by the average  annual total return
computation.

In  calculating  total  returns for Class A shares,  the current  maximum  sales
charge of 5.75% (as a  percentage  of the offering  price) is deducted  from the
initial  investment (unless the return is shown at net asset value). For Class B
shares,  the payment of the applicable CDSC (5.0% prior to the first anniversary
of purchase, 4.0% prior to the second anniversary of purchase, 3.0% prior to the
third and fourth anniversaries of purchase,  2.0% prior to the fifth anniversary
of purchase,  1.0% prior to the sixth anniversary of purchase and no CDSC on and
after the sixth  anniversary  of purchase)  is applied to the Fund's  investment
result for that class for the time  period  shown  (unless  the total  return is
shown at net asset value).  For Class C shares,  the 1.0% CDSC is applied to the
Fund's  investment  result for that class for the time period shown prior to the
first  anniversary  of purchase  (unless the total  return is shown at net asset
value). For Class P shares, there is no CDSC. Total returns also assume that all
dividends and capital gains  distributions  during the period are  reinvested at
net asset value per share, and that the investment is redeemed at the end of the
period.

Using  the  computation  method  described  above,  the  Fund's  average  annual
compounded  rates of return  for the last one,  five and ten  year(s)  ending on
January 31, 1998 were as follows:  17.30%,  20.66% and 16.15%,  respectively for
the Fund's Class A shares.  For Class B shares,  the Fund's average annual rates
of return for the last one year and life of the class periods  ending on January
31, 1998 were 18.54% and 26.08%,  respectively.  For Class C shares,  the Fund's
average  annual  rates of  return  for the  last one year and life of the  class
periods  ending on January 31, 1998 were  23.55% and 29.61%,  respectively.  For
Class P  shares,  the  Fund's  total  return  for the life of the  class  period
(January 5, 1998 to January 31, 1998) was (.80)%.

These figures represent past  performance,  and an investor should be aware that
the investment return and principal value of a Fund investment will fluctuate so
that an investor's shares,  when redeemed,  may be worth more or less than their
original cost.  Therefore,  there is no assurance that this  performance will be
repeated in the future.


                                       7.
                                      Taxes

The value of any shares  redeemed by the Fund or  otherwise  sold may be more or
less than your tax basis in the shares at the time the redemption, repurchase or
sale is made.  Any gain or loss generally will be taxable for federal income tax
purposes. Any loss realized on the redemption, repurchase or sale of Fund shares
which you have held for six months or less will be treated for tax purposes as a
long-term  capital loss to the extent of any capital gains  distributions  which
you  received  with  respect  to such  shares.  Losses  on the  sale of stock or
securities are not  deductible if, within a period  beginning 30 days before the
date of the sale and  ending 30 days  after the date of the sale,  the  taxpayer
acquires stock or securities that are substantially identical.

<PAGE>
As described in the Prospectus  under "Risk Factors," the Fund may be subject to
foreign  withholding taxes which would reduce the yield on its investments.  Tax
treaties between certain countries and the United States may reduce or eliminate
such taxes.  It is  expected  that Fund  shareholders  who are subject to United
States  federal  income tax will not be entitled  to claim a federal  income tax
credit or deduction for foreign income taxes paid by the Fund.  Gains and losses
realized by the Fund on certain  transactions,  including  sales of foreign debt
securities and certain transactions involving foreign currency,  will be treated
as ordinary  income or loss for federal  income tax  purposes to the extent,  if
any, that such gains or losses are attributable to changes in exchange rates for
foreign currencies.  Accordingly,  distributions taxable as ordinary income will
include  the net  amount,  if any, of such  foreign  exchange  gains and will be
reduced by the net amount, if any, of such foreign exchange losses.

If the Fund purchases  shares in certain  foreign  investment  entities,  called
"PFICs" or "passive foreign  investment  companies," it may be subject to United
States federal income tax on a portion of any "excess distribution" or gain from
the disposition of such shares,  even if such income is distributed as a taxable
dividend by the Fund to its  shareholders.  Additional  charges in the nature of
interest may be imposed on either the Fund or its  shareholders  with respect to
deferred  taxes arising from such  distributions  or gains.  If the Fund were to
invest in a passive  foreign  investment  company with respect to which the Fund
elected to make a "qualified  electing fund" election,  in lieu of the foregoing
requirements,  the Fund  might be  required  to  include  in income  each year a
portion of the ordinary earnings and net capital gains of the qualified electing
fund, even if such amount were not distributed to the Fund. Proposed legislation
would revise the passive foreign  investment  company rules in various respects;
it is unclear whether and in what form such legislation might be enacted.

Gains and losses realized by the Fund on certain  transactions,  including sales
of foreign debt securities and certain transactions  involving foreign currency,
will be treated as ordinary  income or loss for federal  income tax  purposes to
the extent,  if any,  that such gains or losses are  attributable  to changes in
exchange rates for foreign  currencies.  Accordingly,  distributions  taxable as
ordinary  income will include the net amount,  if any, of such foreign  exchange
gains and will be reduced by the net amount,  if any, of such  foreign  exchange
losses.

The  foregoing  discussion  relates  solely to U. S.  federal  income tax law as
applicable to United States  persons  (United  States  citizens or residents and
United States domestic  corporations,  partnerships,  trusts and estates).  Each
shareholder  who is not a United States  person  should  consult his tax adviser
regarding the U. S. and foreign tax  consequences  of the ownership of shares of
the Fund,  including a 30% (or lower treaty rate) United States  withholding tax
on dividends  representing ordinary income and net short-term capital gains, and
the  applicability  of United States gift and estate taxes to non-United  States
persons who own Fund shares.

<PAGE>
The Fund will be subject to a 4% nondeductible excise tax on certain amounts not
distributed  (and not treated as having been  distributed)  on a timely basis in
accordance with a calendar year  distribution  requirement.  The Fund intends to
distribute to shareholders  each year an amount adequate to avoid the imposition
of such excise tax.

Dividends paid by the Fund should qualify for the  dividends-received  deduction
for corporations, to the extent they are derived from dividends paid by domestic
corporations.

The  foregoing  discussion  relates  solely to U.S.  federal  income  tax law as
applicable to United States  persons  (United  States  citizens or residents and
United States domestic  corporations,  partnerships,  trusts and estates).  Each
shareholder  who is not a United States  person  should  consult his tax adviser
regarding  the U.S. and foreign tax  consequences  of the ownership of shares of
the Fund,  including a 30% (or lower treaty rate) United States  withholding tax
on dividends  representing ordinary income and net short-term capital gains, and
the  applicability  of United States gift and estate taxes to non-United  States
persons who own Fund share.

                                       8.
                           Information About the Fund

The  directors,  trustees and officers of Lord  Abbett-sponsored  mutual  funds,
together  with the partners  and  employees  of Lord  Abbett,  are  permitted to
purchase and sell securities for their personal investment accounts. In engaging
in  personal  securities  transactions,  however,  such  persons  are subject to
requirements  and  restrictions  contained  in the Fund's  Code of Ethics  which
complies,  in  substance,  with each of the  recommendations  of the  Investment
Company Institute's  Advisory Group on Personal  Investing.  Among other things,
the Code  requires  that Lord  Abbett  partners  and  employees  obtain  advance
approval before buying or selling securities, submit confirmations and quarterly
transaction  reports,  and obtain  approval  before  becoming a director  of any
company;  and it  prohibits  such  persons  from  investing in a security 7 days
before or after any Lord  Abbett-sponsored  fund or Lord Abbett-managed  account
considers a trade or trades in such  security,  from  profiting on trades of the
same  security  within  60 days and from  trading  on  material  and  non-public
information.  The Code imposes certain similar  requirements and restrictions on
the independent directors and trustees of each Lord Abbett-sponsored mutual fund
to the extent contemplated by the recommendations of the Advisory Group.

                                       9.
                              Financial Statements

The  financial  statements  for the fiscal  year ended  January 31, 1998 and the
report  of  Deloitte  & Touche  LLP,  independent  auditors,  on such  financial
statements  contained in the 1998 Annual Report to  Shareholders  of Lord Abbett
Developing  Growth  Fund,  Inc.  are  incorporated  herein by  reference to such
financial  statements  and report in reliance  upon the  authority of Deloitte &
Touche LLP as experts in auditing and accounting.

<PAGE>

PART C OTHER INFORMATION


Item 24. Financial Statements and Exhibits

         (a)      Financial Statements
                  Part A- Financial  Highlights  for the ten years ended January
31, 1998.

                  Part      B-  Statement  of Net  Assets at January  31,  1998.
                            Statement of  Operations  for the year ended January
                            31,  1998.  Statements  of Changes in Net Assets for
                            the years ended January 31, 1998 and 1997. Financial
                            Highlights  for the five  years  ended  January  31,
                            1998.

         (b)      Exhibits -

                  99.B1     Restated Articles*
                  99.B2     By-Laws*
                  99.B11    Consent of Deloitte & Touche LLP*
                  99.B18    Form of Plan entered into by Registrant pursuant to
                            Rule 18f-3.**
                  Ex. 16    Computation of Performance and Yield*
                  Ex. 27    Financial Data Schedule*

* Filed herewith. 
** Incorporated by Reference to Post-Effective  Amendment No.
12 to the  Registration  Statement on Form N-1A of Lord Abbett  Investment Trust
(File No. 33-68090).

                  Exhibit items not listed above are not applicable.


Item 25. Persons Controlled by or Under Common Control with Registrant

                  None.


Item 26. Number of Record Holders of Securities

                  At  May 8, 1998        Class A -  37,063
                                         Class B  - 10,684
                                         Class C  -  4,626
                                         Class P  -      9

Item 27. Indemnification

         Registrant is incorporated  under the laws of the State of Maryland and
         is  subject  to  Section  2-418 of the  Corporations  and  Associations
         Article of the Annotated Code of the State of Maryland  controlling the
         indemnification of the directors and officers. Since Registrant has its
         executive  offices  in the State of New  York,  and is  qualified  as a
         foreign  corporation  doing business in such State, the persons covered
         by the  foregoing  statute  may also be  entitled to and subject to the
         limitations of the indemnification provisions of Section 721-726 of the
         New York Business Corporation Law.

         The general effect of these statutes is to protect officers,  directors
         and  employees  of  Registrant  against  legal  liability  and expenses
         incurred by reason of their positions with the Registrant. The statutes
         provide for  indemnification  for liability for proceedings not brought
         on behalf of the  corporation  and for those  brought  on behalf of the
         corporation,   and  in  each  case   place   conditions   under   which
         indemnification  will be  permitted,  including  requirements  that the
         officer,  director  or  employee  acted in good  faith.  Under  certain
         conditions,  payment of expenses in advance of final disposition may be
         permitted. The By-laws of Registrant, without limiting the authority of
         Registrant to indemnify any of its officers, employees or agents to the
         extent consistent with applicable law, make the  indemnification of its
         directors  mandatory  subject only to the  conditions  and  limitations
         imposed by the above-  mentioned  Section  2-418 of Maryland law and by
         the provisions of Section 17(h) of the  Investment  Company Act of 1940
         as  interpreted  and  required  to be  implemented  by SEC  Release No.
         IC-11330 of September 4, 1980.

         In referring in its By-laws to, and making indemnification of directors
         subject to the conditions and limitations of, both Section 2-418 of the
         Maryland law and Section 17(h) of the  Investment  Company Act of 1940,
         Registrant intends that conditions and limitations on the extent of the
         indemnification  of  directors  imposed  by the  provisions  of  either
         Section 2-418 or Section  17(h) shall apply and that any  inconsistency
         between the two will be resolved by  applying  the  provisions  of said
         Section 17(h) if the  condition or limitation  imposed by Section 17(h)
         is the more  stringent.  In referring in its By-laws to SEC Release No.
         IC-11330 as the source for  interpretation  and  implementation of said
         Section 17(h),  Registrant  understands that it would be required under
         its By-laws to use  reasonable  and fair means in  determining  whether
         indemnification  of a  director  should be made and  undertakes  to use
         either  (1) a final  decision  on the  merits by a court or other  body
         before  whom  the   proceeding  was  brought  that  the  person  to  be
         indemnified  ("indemnitee")  was not  liable  to  Registrant  or to its
         security  holders by reason of willful  malfeasance,  bad faith,  gross
         negligence, or reckless disregard of the duties involved in the conduct
         of his office  ("disabling  conduct")  or (2) in the  absence of such a
         decision, a reasonable determination, based upon a review of the facts,
         that the indemnitee was not liable by reason of such disabling conduct,
         by (a) the vote of a majority of a quorum of directors  who are neither
         "interested  persons"  (as defined in the 1940 Act) of  Registrant  nor
         parties to the  proceeding,  or (b) an  independent  legal counsel in a
         written opinion. Also, Registrant will make advances of attorneys' fees
         or other  expenses  incurred by a director  in his defense  only if (in
         addition  to  his  undertaking  to  repay  the  advance  if he  is  not
         ultimately entitled to  indemnification)  (1) the indemnitee provides a
         security for his  undertaking,  (2) Registrant shall be insured against
         losses arising by reason of any lawful advances, or (3) a majority of a
         quorum of the non-interested,  non-party directors of Registrant, or an
         independent legal counsel in a written opinion, shall determine,  based
         on a review of readily available facts, that there is reason to believe
         that   the   indemnitee   ultimately   will  be   found   entitled   to
         indemnification.

         Insofar as  indemnification  for liability arising under the Securities
         Act of 1933 may be permitted  to  directors,  officers and  controlling
         persons of the  Registrant  pursuant to the  foregoing  provisions,  or
         otherwise,  the  Registrant has been advised that in the opinion of the
         Securities  and Exchange  Commission  such  indemnification  is against
         public policy as expressed in the Act and is, therefore, unenforceable.
         In the event that a claim for indemnification  against such liabilities
         (other than the payment by the  Registrant of expense  incurred or paid
         by a director,  officer or controlling  person of the Registrant in the
         successful  defense of any action,  suit or  proceeding) is asserted by
         such  director,  officer or controlling  person in connection  with the
         securities being registered, the Registrant will, unless in the opinion
         of its counsel the matter has been  settled by  controlling  precedent,
         submit to a court of appropriate jurisdiction the question whether such
         indemnification  by it is against public policy as expressed in the Act
         and will be governed by the final adjudication of such issue.

         In addition, Registrant maintains a directors' and officers' errors and
         omissions liability insurance policy protecting  directors and officers
         against liability for breach of duty,  negligent act, error or omission
         committed  in their  capacity  as  directors  or  officers.  The policy
         contains certain exclusions, among which is exclusion from coverage for
         active or  deliberate  dishonest or  fraudulent  acts and exclusion for
         fines or penalties imposed by law or other matters deemed uninsurable.


Item 28. Business and Other Connections of Investment Adviser

         Lord, Abbett & Co. acts as investment adviser for twelve other open-end
         investment  companies  (of  which  it  is  principal   underwriter  for
         thirteen)  and as  investment  adviser to  approximately  6,220 private
         accounts.  Other than acting as directors  and/or  officers of open-end
         investment  companies  sponsored by Lord,  Abbett & Co.,  none of Lord,
         Abbett & Co.'s  partners has, in the past two fiscal years,  engaged in
         any other business, profession, vocation or employment of a substantial
         nature for his own  account or in the  capacity of  director,  officer,
         employee, or partner of any entity except as follows:

                  John J. Walsh
                  Trustee
                  The Brooklyn Hospital Center
                  100 Parkside Avenue
                  Brooklyn, N.Y.


Item 29.(a)       Principal Underwriter

                  Lord Abbett Affiliated Fund, Inc.
                  Lord Abbett Mid-Cap Value Fund, Inc.
                  Lord Abbett Bond-Debenture Fund, Inc.
                  Lord Abbett Tax-Free Income Fund, Inc.
                  Lord Abbett Global Fund, Inc.
                  Lord Abbett Series Fund, Inc.
                  Lord Abbett U.S. Government Money Market Fund, Inc.
                  Lord Abbett Equity Fund
                  Lord Abbett Tax-Free Income Trust
                  Lord Abbett Securities Trust
                  Lord Abbett Investment Trust
                  Lord Abbett Research Fund, Inc.

                  Investment Advisor
                  American Skandia Trust (Lord Abbett Growth & Income Portfolio)

         (b)      The partners of Lord, Abbett & Co. are:

                  Name and Principal        Positions and Offices
                  Business Address (1)      with Registrant

                  Robert S. Dow                      Chairman and President
                  Paul A. Hilstad                    Vice President & Secretary
                  Daniel E. Carper                   Vice President
                  Robert G. Morris                   Vice President
                  E. Wayne Nordberg                  Vice President
                  John J. Walsh                      Vice President

The other partners,  as follows, are neither officers nor directors of the Fund:
Stephen I Allen, Zane E. Brown,  Daria L. Foster,  W. Thomas Hudson,  Michael B.
McLaughlin and Robert J. Noelke.

          (1)     Each of the above has a principal business address:
                  767 Fifth Avenue, New York, NY 10153
          (c)      Not applicable


Item 30. Location of Accounts and Records

Registrant maintains the records,  required by Rules 31a - 1(a) and (b), and 31a
- - 2(a) at its main office.

Lord,  Abbett & Co. maintains the records required by Rules 31a - 1(f) and 31a -
2(e) at its main office.

         Certain records such as cancelled stock certificates and correspondence
         may be  physically  maintained  at the main office of the  Registrant's
         Transfer Agent,  Custodian,  or Shareholder  Servicing Agent within the
         requirements of Rule 31a-3.

Item 31. Management Services

         (a)      None


Item 32. Undertakings

         (c)  The  Registrant  undertakes  to  furnish  each  person  to  whom a
              prospectus  is delivered  with a copy of the  Registrant's  latest
              annual report to shareholders, upon request and without charge.


              The registrant undertakes, if requested to do so by the holders of
              at least 10% of the  registrant's  outstanding  shares,  to call a
              meeting  of  shareholders  for the  purpose  of  voting  upon  the
              question  of removal of a director or  directors  and to assist in
              communications  with other  shareholders  as  required  by Section
              16(c).

<PAGE>

                                   SIGNATURES

Pursuant to the  requirements  of the  Securities Act of 1933 and the Investment
Company Act of 1940 the Registrant  certifies that it meets all the requirements
for effectiveness of this Registration  Statement  pursuant to Rule 485(b) under
the  Securities  Act of 1933 and has duly  caused  this  Registration  Statement
and/or any  amendment  thereto  to be signed on its  behalf by the  undersigned,
thereunto duly authorized,  in the City of New York and State of New York on the
29th day of May.
 
                                    LORD ABBETT DEVELOPING GROWTH FUND, INC.


                                         By /s/ Robert S. Dow
                                         Robert S. Dow
                                         Chairman of the Board

Pursuant to the  requirements of the Securities Act of 1933,  this  Registration
Statement has been signed below by the following  persons in the  capacities and
on the dates indicated.


                              Chairman, President
/s/Robert S. Dow              and Director                  May 29, 1998
Robert S. Dow                 (Title)                        (Date)

                              Vice President
/s/ Keith F. O'Connor         and Chief Financial Officer   May 29, 1998
Keith F. O'Connor             (Title)                        (Date)


/s/ E. Wayne Nordberg         Director                      May 29, 1998
E. Wayne Nordberg              (Title)                        (Date)


/s/ E. Thayer Bigelow         Director                      May 29, 1998
E. Thayer Bigelow              (Title)                        (Date)


/s/ Stewart S. Dixon          Director                      May 29, 1998
Stewart S. Dixon               (Title)                        (Date)


/s/ John C. Jansing           Director                      May 29, 1998
John C. Jansing                (Title)                        (Date)


/s/ C. Alan MacDonald         Director                      May 29, 1998
C. Alan MacDonald             (Title)                         (Date)


/s/ Hansel B. Millican, Jr.   Director                      May 29, 1998
Hansel B. Millican, Jr.       (Title)                         (Date)


/s/ Thomas J. Neff            Director                      May 29, 1998
Thomas J. Neff                (Title)                         (Date)

<PAGE>

                    LORD ABBETT DEVELOPING GROWTH FUND, INC.

                             ARTICLES OF RESTATEMENT


                  FIRST:   LORD ABBETT DEVELOPING GROWTH FUND, INC., a Maryland
          corporation, (the "Corporation") desires to restate
          its charter as currently in effect.

                  SECOND:  The following provisions are all the provisions of 
          the charter currently in effect.

                       RESTATED ARTICLES OF INCORPORATION

                                       OF

                    LORD ABBETT DEVELOPING GROWTH FUND, INC.


                                    ARTICLE I

                  I, the  subscriber,  Kenneth  B.  Cutler,  whose  post  office
address is 63 Wall Street,  New York, New York 10005,  being at least twenty-one
years of age,  am  acting  as  incorporator  with the  intention  of  forming  a
corporation  under and by virtue of the  General  Laws of the State of  Maryland
authorizing the formation of corporations.


                                   ARTICLE II

                  The  name  of  the   corporation   (hereinafter   called   the
"Corporation") is Lord Abbett Developing Growth Fund, Inc.

<PAGE>
                                   ARTICLE III

                  The  current  post  office  address  of the place at which the
principal  office of the  Corporation in the State of Maryland is located is c/o
The Prentice-Hall Corporation System, Maryland, 11 East Chase Street, Baltimore,
Maryland 21202.

                  The Corporation's  current resident agent is The Prentice-Hall
Corporation System, Maryland, 11 East Chase Street,  Baltimore,  Maryland 21202.
Said resident agent is a corporation in the State of Maryland.


                                   ARTICLE IV

                  The purpose or purposes  for which the  Corporation  is formed
and the business or objects to be transacted, carried on and promoted by it, are
as follows:

                  1.       To conduct, operate and carry on the business of an
investment company.

                  2. To purchase, subscribe for, invest in or otherwise acquire,
and to own, hold, sell,  possess,  transfer or otherwise  dispose of, or turn to
account or realize upon, and generally deal in, all forms of securities of every
nature,  kind,  character,  type and form, including but not limited to, shares,
stocks, bonds, debentures,  notes, scrip, participation certificates,  rights to
subscribe,  warrants,  options,  certificates  of  deposit,  choses  in  action,
evidences of  indebtedness,  certificates  of indebtedness  and  certificates of
interest of any and every kind and nature  whatsoever,  secured  and  unsecured,
issued or to be issued,  by any corporation,  partnership,  association,  trust,
entity or person,  public or private,  whether  organized  under the laws of the
United States, or any state,  commonwealth,  territory or possession thereof, or
organized under the laws of any foreign country.

                  3.  To  issue,  sell,  repurchase,   redeem,  retire,  cancel,
acquire,  resell, transfer, and otherwise deal in shares of the capital stock of
the Corporation,  and to apply to any such repurchase,  redemption,  retirement,
cancellation or acquisition of shares of capital stock of the  Corporation,  any
funds of the  Corporation,  whether  capital,  surplus or  otherwise to the full
extent permitted by the laws of Maryland, all without the vote or consent of the
stockholders of the Corporation.

<PAGE>
                  4. To conduct its business in the State of Maryland, all other
states and  elsewhere in any part of the world,  and to have one or more offices
outside the State of Maryland.

                  5. To do any and all things herein set forth,  and in addition
such other acts and things as are necessary or  convenient to the  attainment of
the purposes of this Corporation,  or any of them, to the same extent as natural
persons  lawfully  might or could do in any part of the world,  and to engage in
any lawful act or activity for which  corporations  may be  organized  under the
laws of the state of Maryland.

                  The foregoing objects and purposes shall,  except as otherwise
expressly  provided,  be in no way limited or  restricted  by  reference  to, or
inference  from the terms of any other  clause of this or any other  Article  of
these Articles of Incorporation,  and shall each be regarded as independent, and
construed  as powers as well as objects and  purposes,  and the  enumeration  of
specific  purposes,  objects  and  powers  shall  not be  construed  to limit or
restrict in any manner the meaning of general terms or the general powers of the
Corporation now or hereafter conferred by the laws of the State of Maryland, nor
shall the expression of one thing be deemed to exclude another,  though it be of
like nature, not expressed;  provided,  however,  that the Corporation shall not
have power to carry on within the State of Maryland any business  whatsoever the
carrying on of which  would  preclude  it from being  classified  as an ordinary
business  corporation  under  the  laws  of said  State;  nor  shall  any of the
foregoing statements of its objects, purposes and powers be deemed to permit the
Corporation  to carry on any  business,  or exercise  any powers,  in any state,
territory, district or county except to the extent that the same may lawfully be
carried on or exercised under the laws thereof.


                                    ARTICLE V

                  SECTION 1. The total  number of shares  which the  Corporation
has authority to issue is 75,000,000 shares of capital stock of the par value of
$.001 each, having an aggregate par value of $75,000.  The Board of Directors of
the  Corporation  shall have full  power and  authority,  from time to time,  to
classify  or  reclassify  any  unissued  shares  of  stock  of the  Corporation,
including,  without  limitation,  the power to classify or  reclassify  unissued
shares into  series,  and to classify  or  reclassify  a series into one or more
classes  of  stock  that  may be  invested  together  in the  common  investment
portfolio  in  which  the  series  is  invested,  by  setting  or  changing  the
preferences,   conversion  or  other  rights,   voting   powers,   restrictions,
limitations  as  to  dividends,   qualifications,  or  terms  or  conditions  of
redemption  of such  shares of  stock.  All  shares  of stock of a series  shall
represent the same interest in the  Corporation  and have the same  preferences,
conversion or other  rights,  voting  powers,  restrictions,  limitations  as to
dividends,  qualifications  and terms and  conditions of redemption as the other
shares of stock of that series, except to the extent that the Board of Directors
provides for differing  preferences,  conversion or other rights, voting powers,
restrictions,   limitations  as  to  dividends,   qualifications,  or  terms  or
conditions  of  redemption  of  shares  of stock of  classes  of such  series as
determined  pursuant to Articles  Supplementary  filed for record with the State
Department of Assessments and Taxation of Maryland,  or as otherwise  determined
pursuant to these Articles or by the Board of Directors in accordance  with law.
Prior to the first  classification  of unissued  shares of stock into additional
series,  all outstanding  shares of stock shall be of a single series, and prior
to the first classification of a series into additional classes, all outstanding
shares of stock of such series shall be of a single class.  Notwithstanding  any
other provision of these  Articles,  upon the first  classification  of unissued
shares of stock into additional  series,  the Board of Directors shall specify a
legal  name  for the  outstanding  series,  as well  as for the new  series,  in
appropriate  charter  documents  filed for record with the State  Department  of
Assessments  and  Taxation  of  Maryland  providing  for such  name  change  and
classification,  and upon the first  classification  of a series into additional
classes,  the Board of Directors  shall specify a legal name for the outstanding
class, as well as for the new class or classes, in appropriate charter documents
filed for record  with the State  Department  of  Assessments  and  Taxation  of
Maryland providing for such name change and classification.

<PAGE>
         [On July 3, 1996, the Articles of Incorporation of the Corporation were
amended by the filing of  Articles of  Amendment  with the State  Department  of
Assessments  and  Taxation of Maryland  which  specified  the legal name for the
existing class of capital stock of the Corporation,  both outstanding shares and
unissued shares, as Class A.

                  On  July  9,  1996,  the  Articles  of  Incorporation  of  the
Corporation  were further  supplemented by the filing of Articles  Supplementary
with the State  Department of  Assessments  and Taxation of Maryland  which,  as
subsequently  corrected by a  Certificate  of  Correction  filed on September 5,
1996,  (a)  increased  the number of shares of Class A capital  stock  which the
Corporation  shall have  authority  to issue to  1,000,000,000  of the par value
$.001 each,  having an aggregate par value of $1,000,000 and (b) pursuant to the
authority  of  the  Board  of  Directors  of the  Corporation  to  classify  and
reclassify  unissued shares of stock of the Corporation and to classify a series
into  one or more  classes  of such  series,  classified  and  reclassified  (i)
25,000,000  authorized  but  unissued  Class A shares as Class C shares and (ii)
20,000,000  authorized  but  unissued  Class A shares  as Class B  shares.  Such
Articles  Supplementary  further provided that subject to the power of the Board
of Directors  to classify  and  reclassify  unissued  shares,  all shares of the
Corporation's Class B and Class C stock shall be invested in the same investment
portfolio  of  the  Corporation  as  the  Class  A  stock  and  shall  have  the
preferences,   conversion  or  other  rights,   voting   powers,   restrictions,
limitations  as to  dividends,  qualifications,  and  terms  and  conditions  of
redemption  set  forth in  Article V of the  Articles  of  Incorporation  of the
Corporation  and shall be subject to all other  provisions  of the  Articles  of
Incorporation relating to stock of the Corporation generally.

<PAGE>
         On December 8, 1997, the Articles of  Incorporation  of the Corporation
were further supplemented by the filing of Articles Supplementary with the State
Department  of  Assessments  and  Taxation  of Maryland  which,  pursuant to the
authority  of  the  Board  of  Directors  of the  Corporation  to  classify  and
reclassify  unissued shares of stock of the Corporation and to classify a series
into one or more classes of such series,  classified and reclassified 30,000,000
authorized but unissued Class A shares as Class P shares and another  30,000,000
authorized  but  unissued  Class A  shares  as  Class  Y  shares,  thus  leaving
895,000,000  authorized  but  unissued  Class A shares of  capital  stock.  Such
Articles  Supplementary  further provided that subject to the power of the Board
of Directors  to classify  and  reclassify  unissued  shares,  all shares of the
Corporation's Class P and Class Y stock shall be invested in the same investment
portfolio  of the  Corporation  as the Class A,  Class B and Class C stock,  and
shall have the same  preferences,  conversion  or other rights,  voting  powers,
restrictions,  limitations  as  to  dividends,  qualifications,  and  terms  and
conditions of redemption set forth in Article V of the Articles of Incorporation
of the Corporation and shall be subject to all other  provisions of the Articles
of Incorporation relating to stock of the Corporation generally.]

                  SECTION  2.  A  description   of  the  relative   preferences,
conversion  and other rights,  voting  powers,  restrictions,  limitations as to
dividends,  qualifications  and terms and conditions of redemption of all series
and classes of series of shares is as  follows,  unless  otherwise  set forth in
Articles  Supplementary  filed  with the State  Department  of  Assessments  and
Taxation of Maryland or otherwise determined pursuant to these Articles:

<PAGE>
                  (a) Assets Belonging to Series. All consideration  received or
         receivable  by the  Corporation  for the  issue or sale of  shares of a
         particular series,  together with all assets in which  consideration is
         invested or  reinvested,  all income,  earnings,  profits and  proceeds
         thereof,  including  any proceeds  derived  from the sale,  exchange or
         liquidation of such assets,  and any funds or payments derived from any
         reinvestment  of such  proceeds in whatever form the same may be, shall
         irrevocably belong to that series for all purposes, subject only to the
         rights of creditors, and shall be so recorded upon the books of account
         of the  Corporation.  Such  consideration,  assets,  income,  earnings,
         profits and  proceeds,  including  any proceeds  derived from the sale,
         exchange  or  liquidation  of such  assets,  and any funds or  payments
         derived from any  reinvestment  of such proceeds,  in whatever form the
         same  may be,  together  with any  unallocated  items  (as  hereinafter
         defined) relating to that series as provided in the following sentence,
         are herein  referred to as "assets  belonging  to" that series.  In the
         event that there are any assets, income, earnings,  profits or proceeds
         thereof,  funds  or  payments  that  are not  readily  identifiable  as
         belonging to any particular series (collectively  "Unallocated Items"),
         the Board of Directors  shall  allocate such  Unallocated  Items to and
         among any one or more of the series  created  from time to time in such
         manner and on such basis as it, in its sole discretion,  deems fair and
         equitable;  and any  Unallocated  Items so  allocated  to a  particular
         series shall belong to that series.  Each such  allocation by the Board
         of Directors  shall be conclusive and binding upon  stockholders of all
         series for all purposes.

                  (b) Liabilities  Belonging to Series.  The assets belonging to
         each  particular  series shall be charged with the  liabilities  of the
         Corporation in respect of that series, including any class thereof, and
         with all expenses,  costs,  charges and reserves  attributable  to that
         series,  including  any such class,  and shall be so recorded  upon the
         books of account of the Corporation. Such liabilities, expenses, costs,
         charges  and  reserves,   together  with  any  unallocated   items  (as
         hereinafter  defined)  relating  to that  series,  including  any class
         thereof,  as provided  in the  following  sentence,  so charged to that
         series,  are herein  referred  to as  "liabilities  belonging  to" that
         series. In the event there are any unallocated  liabilities,  expenses,
         costs,  charges or  reserves of the  Corporation  which are not readily
         identifiable  as  belonging  to  any  particular  series  (collectively
         "Unallocated  Items"), the Board of Directors shall allocate and charge
         such  Unallocated  Items  to and  among  any one or more of the  series
         created from time to time in such manner and on such basis as the Board
         of Directors in its sole discretion  deems fair and equitable;  and any
         Unallocated Items so allocated and charged to a particular series shall
         belong to that series.  Each such  allocation by the Board of Directors
         shall be conclusive and binding upon the stockholders of all series for
         all  purposes.  To the  extent  determined  by the Board of  Directors,
         liabilities  and  expenses   relating  solely  to  a  particular  class
         (including,  without  limitation,  distribution  expenses  under a Rule
         12b-1  plan and  administrative  expenses  under an  administration  or
         service agreement, plan or other arrangement, however designated, which
         may be adopted for such class)  shall be allocated to and borne by such
         class and shall be appropriately reflected (in the manner determined by
         the  Board  of  Directors)  in  the  net  asset  value,  dividends  and
         distributions and liquidation rights of the shares of such class.

<PAGE>
                  (c)  Dividends.  Dividends  and  distributions  on shares of a
         particular  series may be paid to the  holders of shares of that series
         at such  times,  in such manner and from such of the income and capital
         gains,  accrued or realized,  from the assets belonging to that series,
         after  providing for actual and accrued  liabilities  belonging to that
         series,  as the Board of Directors may  determine.  Such  dividends and
         distributions  may vary between or among classes of a series to reflect
         differing  allocations  of  liabilities  and  expenses  of such  series
         between or among such  classes to such  extent as may be provided in or
         determined pursuant to Articles Supplementary filed for record with the
         State  Department  of  Assessments  and  Taxation of Maryland or as may
         otherwise be determined by the Board of Directors.

                  (d)   Liquidation.   In  the  event  of  the   liquidation  or
         dissolution of the  Corporation,  the stockholders of each series shall
         be entitled to receive,  as a series, when and as declared by the Board
         of  Directors,  the excess of the assets  belonging to that series over
         the liabilities  belonging to that series.  The assets so distributable
         to the  stockholders  of one or  more  classes  of a  series  shall  be
         distributed  among such  stockholders  in proportion to the  respective
         aggregate  net asset  values of the shares of such  series held by them
         and recorded on the books of the Corporation.

                  (e)  Voting.   On  each  matter   submitted  to  vote  of  the
         stockholders,  each holder of a share shall be entitled to one vote for
         each such share  standing  in his name on the books of the  Corporation
         irrespective  of the  series  or class  thereof  and all  shares of all
         series  and  classes  shall  vote  as a  single  class  ("Single  Class
         Voting");  provided, however, that (i) as to any matter with respect to
         which a  separate  vote of any  series  or  class  is  required  by the
         Investment  Company  Act  of  1940,  as  amended  from  time  to  time,
         applicable  rules and regulations  thereunder,  or the Maryland General
         Corporation  Law, such requirement as to a separate vote of that series
         or class shall apply in lieu of Single Class Voting as described above;
         (ii) in the event that the separate  vote  requirements  referred to in
         (i) above apply with  respect to one or more (but less than all) series
         or  classes,  then,  subject  to (iii)  below,  the shares of all other
         series and classes  shall vote as a single  class;  and (iii) as to any
         matter  which does not affect the  interest of a  particular  series or
         class, only the holders of shares of the one or more affected series or
         classes shall be entitled to vote.

<PAGE>
                  (f)  Conversion.  At such  times  (which  times may vary among
         shares of a class)  as may be  determined  by the  Board of  Directors,
         shares of a particular class of a series may be automatically converted
         into shares of another  class of such series  based on the relative net
         asset  values  of such  classes  at the  time of  conversion,  subject,
         however,  to any  conditions of  conversion  that may be imposed by the
         Board of Directors.

                  SECTION 3. Each share of the capital stock of the Corporation,
shall be subject to the following provisions:

                  (a) All shares of the capital stock of the  Corporation now or
         hereafter  authorized  shall be subject to redemption and redeemable at
         the option of the stockholder, in the sense used in the General Laws of
         the State of Maryland  authorizing the formation of corporations.  Each
         holder of the shares of capital stock of the Corporation,  upon request
         to the Corporation accompanied by surrender (to the Corporation,  or an
         agent  designated  by it)  of  the  appropriate  stock  certificate  or
         certificates,  if any,  in proper  form for  transfer,  and such  other
         instruments as the Board of Directors may require, shall be entitled to
         require  the  Corporation  to redeem  all or any part of the  shares of
         capital  stock  outstanding  in the name of such holder on the books of
         the Corporation,  at a redemption price equal to the net asset value of
         such shares  determined as hereinafter set forth.  Notwithstanding  the
         foregoing,  the Corporation may deduct from the proceeds  otherwise due
         to any  stockholder  requiring  the  Corporation  to  redeem  shares  a
         redemption  charge  not to exceed  one  percent  (1%) of such net asset
         value or a  reimbursement  charge,  a  deferred  sales  charge or other
         charge  that is  integral  to the  Corporation's  distribution  program
         (which  charges may vary within and among series and classes) as may be
         established from time to time by the Board of Directors.

<PAGE>
                  (b) Notwithstanding  the foregoing,  the Board of Directors of
         the  Corporation  may  suspend  the right of the holders of the capital
         stock of the Corporation to require the Corporation to redeem shares of
         such  capital  stock or may  suspend  any  voluntary  purchase  of such
         capital stock:

                             (i) for any period  (A)  during  which the New York
                  Stock Exchange is closed other than the customary  weekend and
                  holiday  closing,  or (B) during which trading on the New York
                  Stock Exchange is restricted;

                             (ii) for any period during which an  emergency,  as
                  defined by the rules of the Securities and Exchange Commission
                  or any  successor  thereto,  exists  as a result  of which (A)
                  disposal by the  Corporation of securities  owned by it is not
                  reasonably   practicable,   or  (B)   it  is  not   reasonably
                  practicable for the Corporation  fairly to determine the value
                  of its net assets; or

                             (iii) for such other periods as the  Securities and
                  Exchange  Commission  or any  successor  thereto  may by order
                  permit  for  the   protection  of  security   holders  of  the
                  Corporation.

                  (c) the Corporation,  pursuant to a resolution of the Board of
         Directors  and  without  the vote or  consent  of  stockholders  of the
         Corporation,  shall  have the right to  redeem  at net asset  value all
         shares of capital stock in any  stockholder  account in which there are
         less  than 25  shares  or such  lesser  number  of  shares  as shall be
         specified  in such  resolution.  Such  resolution  shall set forth that
         redemption of shares in such accounts has been  determined to be in the
         economic  best  interest  of the  Corporation  or  necessary  to reduce
         disproportionately   burdensome   expenses  in  servicing   stockholder
         accounts.  Such resolution  shall provide that prior notice of at least
         30 days  shall be given to a  stockholder  before  such  redemption  of
         shares,  and that the  stockholder  will  have 30 days (or such  longer
         period as is specified in the  resolution)  from the date of the notice
         to avoid  such  redemption  by  increasing  his  account to at least 25
         shares,  or  such  lesser  number  of  shares  as is  specified  in the
         resolution.

<PAGE>
                  SECTION 4.  Notwithstanding any provision of law requiring any
action to be taken or  authorized  by the  affirmative  vote of the holders of a
designated proportion greater than a majority of the shares or votes entitled to
be cast,  such action shall be effective and valid if taken or authorized by the
affirmative  vote of the  holders  of a majority  of the total  number of shares
outstanding  or entitled to vote  thereon  pursuant to the  provisions  of these
Articles of Incorporation.

                  SECTION  5. No holder of stock of the  Corporation  shall,  as
such  holder,  have any right to  purchase  or  subscribe  for any shares of the
capital stock of the Corporation  which it may issue or sell (whether out of the
number of shares now or hereafter authorized by these Articles of Incorporation,
or any  amendment  thereof,  or out of any  shares of the  capital  stock of the
Corporation  acquired by it after the issue  thereof,  or otherwise)  other than
such right, if any, as the Board of Directors, in its discretion, may determine.


                                   ARTICLE VI

                  The current  number of directors of the  Corporation is eight,
and the names of those who shall act as such  until  their  successors  are duly
elected and qualify are as follows:

Robert S. Dow
E. Wayne Nordberg
E. Thayer Bigelow
Stewart S. Dixon
John C. Jansing
C. Alan MacDonald
Hansel B. Millican
Thomas J. Neff

However,  the By-Laws of the  Corporation  may fix the number of  directors at a
number other than eight and may authorize the Board of Directors, by the vote of
a majority of the entire Board of  Directors,  to divide the Board into classes,
to increase or decrease the number of directors  within a limit specified in the
By-Laws,  provided  that in no case shall the number of  directors  be less than
three,  and to fill the vacancies  created by any such increase in the number of
directors.  Unless  otherwise  provided in the By-Laws of the  Corporation,  the
directors of the Corporation need not be stockholders.

<PAGE>
                                   ARTICLE VII

                  The following  provisions  are inserted for the  management of
the  business  and  conduct of the  affairs of the  Corporation,  and to create,
define, limit and regulate the powers of the Corporation,  the directors and the
stockholders.

                  SECTION 1. In furtherance  and not in limitation of the powers
conferred by the statute and pursuant to these  Articles of  Incorporation,  the
Board of Directors is expressly authorized to do the following:

                  (a)      To make, adopt, alter, amend and repeal By-Laws of 
the Corporation.

                  (b) To distribute, in its discretion,  for any fiscal year (in
         the  year or in the next  fiscal  year) as  ordinary  dividends  and as
         capital gains distributions, respectively, amounts sufficient to enable
         the  Corporation  as  a  regulated  investment  company  to  avoid  any
         liability  for  Federal  income  tax  in  respect  of  such  year.  Any
         distribution or dividend paid to  stockholders  from any capital source
         shall be  accompanied  by a written  statement  showing  the  source or
         sources of such payment;

                  (c) To issue  and sell or to cause  the  issuance  and sale of
         shares of the  Corporation's  capital stock in such amounts and on such
         terms and  conditions,  for such purpose and for such amount or kind of
         consideration as is now or hereafter permitted by the laws of the State
         of Maryland;

                  (d) To  purchase  and to cause to be  purchased  shares of the
         capital  stock  of the  Corporation,  pursuant  to  these  Articles  of
         Incorporation,  upon tender thereof by the holder or holders thereof or
         otherwise,  provided the Corporation  has assets legally  available for
         such purpose whether arising out of paid-in surplus, other surplus, net
         profits or  otherwise,  to such extent and in such manner and upon such
         terms as the Board of Directors  shall deem  expedient,  and to pay for
         such shares in cash then held or owned by the Corporation;

<PAGE>
                  (e) To authorize,  subject to such vote,  consent, or approval
         of stockholders and other conditions, if any, as may be required by any
         applicable statute,  rule or regulation,  the execution and performance
         by the  Corporation  of an  agreement  or  agreements  with any person,
         corporation,  association,  partnership, or other organization whereby,
         subject to the supervision  and control of the Board of Directors,  any
         such other  person,  corporation,  association,  partnership,  or other
         organization, shall render managerial,  investment advisory and related
         services  to the  Corporation  (including,  if  deemed  advisable,  the
         management  or  supervision   of  the  investment   portfolios  of  the
         Corporation)  upon such terms and conditions as may be provided in such
         agreement or agreements;

                  (f) To authorize, subject to such vote, consent or approval of
         stockholders  and other  conditions,  if any, as may be required by any
         applicable statute,  rule or regulation,  the execution and performance
         by  the  Corporation  of an  agreement  or  agreements,  which  may  be
         exclusive, with any person,  corporation,  association,  partnership or
         other  organization,  as  distributor,   providing  for  the  sale  and
         distribution  of shares of the capital stock of the  Corporation.  Such
         agreement or agreements  may provide for the charge by the  Corporation
         of a  premium  over the net  asset  value  (determined  as  hereinafter
         provided) of such shares and allowance of a discount by the Corporation
         to such  distributor,  and may further  provide for the  reallowance by
         such  distributor of  concessions  or  commissions  from such discount;
         provided,  however,  that such discount  shall not exceed the amount of
         the premium;

                  (g) To authorize any  agreement of the character  described in
         subsection  (e) or (f) of this Section 1 with any person,  corporation,
         association, partnership or other organization, although one or more of
         the members of the Board of  Directors  or officers of the  Corporation
         may be the other party to any such  agreement or an officer,  director,
         shareholder, or member of such other party, and no such agreement shall
         be invalidated  or rendered  voidable by reason of the existence of any
         such  relationship.  Any  director  of the  Corporation  who is  also a
         director or officer of such  corporation or who is so interested may be
         counted in determining  the existence of a quorum at any meeting of the
         Board of Directors which shall  authorize any such  agreement,  and may
         vote thereat to authorize any such contract or  transaction,  with like
         force and  effect as if he were not such  director  or  officer of such
         other  corporation  or not so  interested.  Any agreement  entered into
         pursuant to said  subsections  (e) or (f) shall be consistent  with and
         subject to the  requirements of the Investment  Company Act of 1940, as
         amended from time to time, applicable rules and regulations thereunder,
         or any other  applicable  Act of  Congress  hereafter  enacted,  and no
         amendment to any agreement entered into pursuant to said subsection (e)
         (other than an amendment  reducing the  compensation of the other party
         thereto) shall be effective  unless assented to by the affirmative vote
         of a majority of the outstanding  voting  securities of the Corporation
         (as such phrase is defined in the  Investment  Company Act of 1940,  as
         amended from time to time) entitled to vote on the matter.

<PAGE>
                  SECTION 2. The Board of Directors  may  authorize the purchase
by the  Corporation,  either  directly  or through  any agent,  of shares of its
capital stock,  in the open market or otherwise,  at prices not in excess of the
net asset value of such shares (determined as hereinafter provided) as of a time
determined  by the  Board  of  Directors  reasonably  proximate  to the  time of
purchase by the Corporation or any such agent.

                  SECTION 3. For the purposes  referred to in these  Articles of
Incorporation,  the net asset  value of the shares of the  capital  stock of the
Corporation of each series and class as of any particular time (a "determination
time")  shall be  determined  by or  pursuant to the  direction  of the Board of
Directors as follows:

                  (a) At times  when a series is not  classified  into  multiple
         classes,  the net asset value of each share of stock of a series, as of
         a determination  time,  shall be the quotient,  carried out to not less
         than two decimal  points,  obtained  by  dividing  the net value of the
         assets of the  Corporation  belonging  to that  series  (determined  as
         hereinafter provided) as of such determination time by the total number
         of shares of that series then outstanding, including all shares of that
         series which the Corporation has agreed to sell for which the price has
         been  determined,  and  excluding  shares  of  that  series  which  the
         Corporation  has agreed to purchase or which are subject to  redemption
         for which the price has been determined.

                  The net value of the assets of the  Corporation of a series as
         of a  determination  time shall be determined in accordance  with sound
         accounting  practice by deducting from the gross value of the assets of
         the  Corporation  belonging to that series  (determined  as hereinafter
         provided),  the amount of all liabilities  belonging to that series (as
         such terms are defined in subsection (b) of Section 2 of Article V), in
         each case as of such determination time.

<PAGE>
                  The gross value of the assets of the Corporation  belonging to
         a series as of such  determination time shall be an amount equal to all
         cash, receivables,  the market value of all securities for which market
         quotations are readily  available and the fair value of other assets of
         the Corporation  belonging to that series (as such terms are defined in
         subsection (a) of Section 2 of Article V) at such  determination  time,
         all determined in accordance with sound accounting  practice and giving
         effect to the following:

                           (1) the  market  value as of any  such  determination
                  time of any security owned by the Corporation  which is listed
                  or  admitted  to  trading  privileges  on the New  York  Stock
                  Exchange or the American Stock Exchange shall be the last sale
                  price or (in the case of a security in which there has been no
                  previously   reported   sale   transaction   since   the  last
                  determination  time) the mean  between  the last bid price and
                  the last asked price,  for such security on such exchange.  In
                  case securities being valued are listed or admitted to trading
                  privileges on any securities  exchange other than the New York
                  Stock Exchange or the American Stock Exchange,  the securities
                  exchange,  sale  transactions or bid or asked prices which are
                  to be used as  aforesaid  shall be  selected  by the  Board of
                  Directors  or any officer or other  person  designated  by the
                  Board of Directors for the purpose.

                           (2) The  market  value of  securities  dealt in in an
                  over-the-counter market shall be the mean between the last bid
                  and asked  price in such  market  prior to such  determination
                  time.

                           (3) The market value of other property, including any
                  securities  which are neither  listed nor  admitted to trading
                  privileges  on any  exchange  or dealt in an  over-the-counter
                  market,  shall be  determined  in good faith in such manner as
                  the Board of Directors shall prescribe from time to time.

                           (4)  The   determination   of  the  market  value  of
                  securities hereunder may be made in reliance on any recognized
                  source of quotations or basis for ascertaining quotations.
                            (5) If a security is traded in more than one market,
                  a determination may be made as to which market most accurately
                  reflects the value of such security.

<PAGE>
                  (b) At  times  when  a  series  is  classified  into  multiple
         classes,  the net asset value of each share of stock of a class of such
         series shall be determined in accordance  with  subsections (a) and (c)
         of this Section 3 with  appropriate  adjustments  to reflect  differing
         allocations of liabilities and expenses of such series between or among
         such  classes  to  such  extent  as may be  provided  in or  determined
         pursuant  to  Articles  Supplementary  filed for record  with the State
         Department of Assessments  and Taxation of Maryland or as may otherwise
         be determined by the Board of Directors.

                  (c) The Board of Directors is empowered, in its discretion, to
         establish other methods for  determining  such net asset value whenever
         such other  methods  are  deemed by it to be  necessary  or  desirable,
         including,  but without  limiting the generality of the foregoing,  any
         method deemed necessary or desirable in order to enable the Corporation
         to comply with any provision of the  Investment  Company Act of 1940 or
         any rule or regulation thereunder.

                  SECTION  4.  Any  determination  as to any  of  the  following
matters  made  by or  pursuant  to the  direction  of  the  Board  of  Directors
consistent  with these Articles of  Incorporation  and in the absence of willful
misfeasance,  bad faith, gross negligence or reckless disregard of duties, shall
be final and  conclusive  and shall be binding  upon the  Corporation  and every
holder of the  shares of  capital  stock of the  Corporation,  of any  series or
class, namely, the amount of the assets,  obligations,  liabilities and expenses
of the Corporation or belonging to any series or with respect to any class;  the
amount of the net income of the Corporation  from dividends and interest for any
period and the amount of assets at any time legally available for the payment of
dividends  with respect to any series or class;  the amount of paid-in  surplus,
other surplus,  annual or other net profits, or net assets in excess of capital,
undivided  profits,  or excess of  profits  over  losses on sales of  securities
belonging to the Corporation or any series or class; the amount,  purpose,  time
of creation, increase or decrease, alteration or cancellation of any reserves or
charges and the propriety  thereof  (whether or not any  obligation or liability
for which such  reserves or charges shall have been created shall have been paid
or  discharged)  with  respect to the  Corporation  or any series or class;  the
market value,  or any sale, bid or asked price to be applied in determining  the
market value, of any security owned or held by the  Corporation;  the fair value
of any other  asset owned by the  Corporation;  the number of shares of stock of
any series or class issued or issuable;  the existence of conditions  permitting
the  postponement  of payment of the repurchase  price of shares of stock of any
series or class or the suspension of the right of redemption as provided by law;
any matter  relating to the  acquisition,  holding and disposition of securities
and other assets by the Corporation;  any question as to whether any transaction
constitutes a purchase of securities on margin,  a short sale of securities,  or
an underwriting of the sale of, or  participation in any underwriting or selling
group in connection  with the public  distribution  of any  securities;  and any
matter  relating to the issue,  sale,  repurchase  and/or other  acquisition  or
disposition of shares of stock of any series or class.

<PAGE>
                  SECTION 5. If the Corporation should change its name and adopt
its corporate title through  permission of the firm of Lord, Abbett & Co., which
shall have entered into a management or advisory  contract with the Corporation,
the Corporation  shall make appropriate  agreements that upon the termination of
such  contract  for any cause,  or if such firm or  subsidiary  or  affiliate or
successor  deems it advisable to withdraw the right to the use of its name,  the
Corporation  will,  at the request of such firm or  subsidiary  or  affiliate or
successor,  take such action as may be necessary to change its name to eliminate
all use of or reference to the words "Lord  Abbett" in any form and will neither
use the  registered  service  mark of Lord,  Abbett & Co.,  without  the written
consent of such firm or subsidiary or affiliate or  successor.  The  Corporation
shall also  agree in such  contract  that  investment  companies  other than the
Corporation for which such firm or a subsidiary  successor may act as investment
adviser,  and other companies  affiliated with Lord, Abbett & Co., may be formed
with the words "Lord Abbett" in their corporate  titles.  Such agreements on the
part of the  Corporation  are  hereby  made  binding  upon  it,  its  directors,
officers,  stockholders,  creditors  and all  other  persons  claiming  under or
through it.


                                  ARTICLE VIII

                  From time to time any of the  provisions of these  Articles of
Incorporation may be amended,  altered or repealed (including any amendment that
changes  the  terms  of  any  of  the  outstanding   Shares  by  classification,
reclassification  or  otherwise),  and other  provisions  that might,  under the
statutes of the State of Maryland at the time in force, be lawfully contained in
Articles of Incorporation may be added or inserted, upon the vote of the holders
of a majority of the Shares of all Classes or of the  affected  Classes,  as the
case may be, at the time outstanding and entitled to vote, and all rights at any
time conferred  upon the  stockholders  of the  Corporation by these Articles of
Incorporation are subject to the provisions of this Article VIII.

<PAGE>
                  THIRD:   The foregoing restatement of the charter has been 
approved by a majority of the entire board of directors.

                  FOURTH:  The charter is not amended by these Articles of 
Restatement.

                  FIFTH:   The current address of the principal office of the 
Corporation is set forth in Article III of the foregoing
restatement of the charter.

                  SIXTH:   The name and address of the Corporation's current
 resident agent are set forth in Article III of the
foregoing restatement of the charter.

                  SEVENTH: The number of directors of the Corporation and the
 names of those currently in office are set forth in
Article VI of the foregoing restatement of the charter.

                  The  undersigned  President  acknowledges  these  Articles  of
Restatement to be the corporate act of the  Corporation and as to all matters or
facts set forth  herein  required to be verified  under  oath,  the  undersigned
President  acknowledges  that to the  best  of his  knowledge,  information  and
belief,  these matters and facts are true in all material respects and that this
statement is made under the penalties of perjury.


                  IN WITNESS WHEREOF,  the Corporation has caused these Articles
to be signed in its name and on its behalf by its  President and witnessed to by
its Secretary on this 27th day of May, 1998.

                                       LORD ABBETT DEVELOPING GROWTH FUND, INC.


                                                By /s/ Robert S. Dow
                                                    Robert S. Dow, President

WITNESS:
/s/ Paul A. Hilstad
Paul A. Hilstad, Secretary

<PAGE>

                                                      
                                     BY-LAWS

                                       OF

                    LORD ABBETT DEVELOPING GROWTH FUND, INC.
                            (a Maryland corporation)

                                    ARTICLE I

                                     OFFICES

Section 1. Principal  Office The principal office of the Corporation in Maryland
shall be in the City of Baltimore,  and the name of the resident agent in charge
thereof is the Prentice-Hall Corporation Systems, Maryland.
                  
Section 2. Other Offices The Corporation may also have an office in the City and
State of New York and offices at such other places as the Board of Directors may
from time to time determine.

                                   ARTICLE II

                              STOCKHOLDERS MEETINGS

SECTION 1.  ANNUAL  MEETINGS  The
Corporation  shall not hold an annual meeting of its  stockholders in any fiscal
year of the  Corporation  unless  required  in  accordance  with  the  following
sentence.  The  Chairman  of the  Board or the  President  shall  call an annual
meeting of the stockholders when one or more matters are required to be acted on
by stockholders  under the Investment  Company Act of 1940, as amended,  and the
Chairman of the Board,  the President,  a Vice  President,  the Secretary or any
director shall call an annual meeting of  stockholders at the request in writing
of a majority  of the Board of  Directors  or of  stockholders  holding at least
onequarter of the stock of the  Corporation  outstanding and entitled to vote at
the  meeting.  Any  annual  meeting of the  stockholders  held  pursuant  to the
foregoing sentence shall be held at such time and at such place, within the City
of New York or  elsewhere,  as may be fixed by the  Chairman of the Board or the
President  or the Board of  Directors  or by the  stockholders  holding at least
one-quarter of the stock of the Corporation outstanding and entitled to vote, as
the case may be,  and as may be stated in the  notice  setting  forth such call,
provided that any  stockholders  requesting  such meeting shall have paid to the
Corporation  the  reasonably  estimated cost of preparing and mailing the notice
thereof,  which the Secretary shall determine and specify to such  stockholders.
Any meeting of stockholders held in accordance with this Section 1 shall for all
purposes  constitute the annual meeting of  stockholders  for the fiscal year of
the  Corporation  in  which  the  meeting  is held  and,  without  limiting  the
generality of the foregoing, shall be held for the purposes of (a) acting on any
such  matter or matters so  required  to be acted on by  stockholders  under the
Investment  Company Act of 1940, as amended,  and (b) electing directors to hold
the offices of any directors who have held office for more than one year (or, in
the case of directors  elected  prior to July 1, 1987,  who have held office for
more than three  years) or who have been  elected by the Board of  Directors  to
fill  vacancies  which  result  from any cause and for  transacting  such  other
business as may properly be brought before the meeting.  Only such business,  in
addition to that  prescribed  by law, by the  Articles of  Incorporation  and by
these  By-Laws,  may be  brought  before  such  meeting as may be  specified  by
resolution  of the Board of Directors or by writing  filed with the Secretary of
the  Corporation  and signed by the Chairman of the Board or by the President or
by a majority of the directors or by stockholders  holding at least  one-quarter
of the stock of the Corporation outstanding and entitled to vote at the meeting.
 <PAGE>                 
SECTION  2.  SPECIAL   MEETINGS
Special  meetings of the  stockholders  for any purpose or purposes  may be held
upon call by the President or by a majority of the Board of Directors, and shall
be called by the President,  a Vice President,  the Secretary or any director at
the  request  in  writing  of a  majority  of  the  Board  of  Directors  or  of
stockholders  holding  at least  one-quarter  of the  stock  of the  Corporation
outstanding and entitled to vote at the meeting,  at such time and at such place
where an annual  meeting of  stockholders  could be held, as may be fixed by the
President  or the Board of  Directors  or by the  stockholders  holding at least
one-quarter of the stock of the Corporation outstanding and so entitled to vote,
as the case may be, and as may be stated in the notice  setting forth such call.
Such request  shall state the purpose or purposes of the proposed  meeting,  and
only such purpose or purposes so specified  may properly be brought  before such
meeting.
<PAGE>                 
SECTION  3. NOTICE OF  MEETINGS
Written or printed  notice of every annual or special  meeting of  stockholders,
stating  the time and place  thereof  and the  general  nature  of the  business
proposed to be transacted at any such meeting,  shall be delivered personally or
mailed  not  less  than  10 nor  more  than  90 days  previous  thereto  to each
stockholder of record entitled to vote at the meeting at his address as the same
appears on the books of the Corporation.  Meetings may be held without notice if
all of the  stockholders  entitled  to vote are  present or  represented  at the
meeting, or if notice is waived in writing,  either before or after the meeting,
by those not present or  represented  at the meeting.  No notice of an adjourned
meeting of the  stockholders  other than an  announcement  of the time and place
thereof at the preceding meeting shall be required.
                 
SECTION 4.  QUORUM  At every meeting of the
stockholders the holders of record of one-third of the outstanding shares of the
stock of the  Corporation  entitled to vote at the meeting,  whether  present in
person or  represented  by proxy,  shall,  except as otherwise  provided by law,
constitute a quorum. If at any meeting there shall be no quorum,  the holders of
record of a majority of such  shares  entitled to vote at the meeting so present
or represented  may adjourn the meeting from time to time,  without notice other
than  announcement at the meeting,  until a quorum shall have been obtained,  at
which time any business may be  transacted  which might have been  transacted at
the meeting as originally called.
<PAGE>                 
SECTION 5. VOTING Each stockholder  entitled
to vote at any meeting  shall have one vote in person or by proxy for each share
of stock held by him, but no proxy shall be voted after  eleven  months from its
date, unless such proxy provides for a longer period. All elections of directors
shall be had, and all  questions  except as otherwise  provided by law or by the
Articles of Incorporation or by these By-Laws,  shall be decided,  by a majority
of the votes cast by  stockholders  present or represented  and entitled to vote
thereat in person or by proxy.

                                   ARTICLE III

                               BOARD OF DIRECTORS

SECTION 1. GENERAL POWERS. The property,  affairs and business
of the  Corporation  shall  be  managed  by the  Board of  Directors,  provided,
however, that the Board of Directors may authorize the Corporation to enter into
an  agreement  or  agreements   with  any  person,   corporation,   association,
partnership  or other  organization,  subject  to the  Board's  supervision  and
control for the purpose of providing managerial, investment advisory and related
services to the Corporation  which may include  management or supervision of the
investment portfolio of the Corporation.
                 
SECTION 2. NUMBER, CLASS, QUORUM, ELECTION, TERM OF OFFICE AND
QUALIFICATIONS. The Board of Directors of the Corporation  shall consist of not
less than three or more than fifteen persons,  none of whom need be stockholders
of the Corporation.  The number of directors  (within the above limits) shall be
determined by the Board of Directors  from time to time, as it sees fit, by vote
of a majority of the whole Board. Directors elected prior to July 1, 1987, shall
be divided  into three  classes,  each to hold office for a term of three years;
directors  elected  thereafter  shall  consist of one class only.  The directors
shall be elected at each  annual  meeting of  stockholders  and,  whether or not
elected for a specific term,  shall hold office,  unless sooner  removed,  until
their respective successors are elected and qualify.
<PAGE> 
                 One-third of the whole  Board,  but in no event less than two,
shall constitute a quorum for the transaction of business, but if at any meeting
of the  Board  there  shall be less than a quorum  present,  a  majority  of the
directors present may adjourn the meeting from time to time until a quorum shall
have been  obtained,  when any business may be transacted  which might have been
transacted  at the meeting as  originally  convened.  No notice of an  adjourned
meeting  of the  directors  other  than an  announcement  of the time and  place
thereof at the preceding meeting shall be required.  The acts of the majority of
the  directors  present at any meeting at which  there is a quorum  shall be the
acts of the Board,  except as  otherwise  provided  by law,  by the  Articles of
Incorporation or by these By-Laws.
                  
SECTION  3.  VACANCIES   The  Board  of
Directors, by vote of a majority of the whole Board, may elect directors to fill
vacancies in the Board  resulting from an increase in the number of directors or
from any other  cause.  Directors  so  chosen  shall  hold  office  until  their
respective successors are elected and qualify,  unless sooner displaced pursuant
to law or these By-Laws.
<PAGE>
                  The stockholder,  at any meeting called for the purpose,  may,
with or  without  cause,  remove any  director  by the  affirmative  vote of the
holders of a  majority  of the votes  entitled  to be cast,  and at any  meeting
called for the purpose may fill the vacancy in the Board thus caused.
                  
SECTION  4.  REGULAR   MEETINGS
Regular meetings of the Board of Directors shall be held at such time and place,
within or without  the State of  Maryland,  as may from time to time be fixed by
Resolution of the Board or as may be specified in the notice of any meeting.  No
notice of regular meetings of the Board shall be required.
                  
SECTION  5.  SPECIAL   MEETINGS
Special  meetings of the Board of  Directors  may be called from time to time by
the President, any Vice President or any two directors.  Each special meeting of
the Board  shall be held at such  place,  either  within or outside the State of
Maryland,  as shall be designated in the notice of such meeting.  Notice of each
such meeting shall be mailed to each  director,  at his residence or usual place
of  business,  at least  two days  before  the day of the  meeting,  or shall be
directed to him at such place by  telegraph  or cable,  or be  delivered  to him
personally  not later  than the day before  the day of the  meeting.  Every such
notice  shall  state  the time and place of the  meeting  but need not state the
purposes thereof,  except as otherwise expressly provided in these By-Laws or by
statute.
  <PAGE>                
SECTION  6.  TELEPHONE  CONFERENCE  MEETINGS  Any  meeting  of the  Board or any
committee  thereof may be held by conference  telephone,  regardless  where each
director may be located at the time, by means of which all persons participating
in the meeting can hear each other,  and  participation  in such meeting in such
manner shall constitute presence in person at such meeting.
                  
SECTION 7. FEES AND EXPENSES The
directors  shall receive such fees and expenses for services to the  Corporation
as may be fixed by the Board of Directors,  subject however, to such limitations
as may be provided in the Articles of  Incorporation.  Nothing herein  contained
shall be construed to preclude any director from serving the  Corporation in any
other  capacity as an officer,  agent or otherwise  and  receiving  compensation
therefor.
                  
SECTION 8. TRANSACTIONS WITH DIRECTORS Except as otherwise provided by law or in
the Articles of  Incorporation,  a director of the Corporation  shall not in the
absence of fraud be disqualified  from office by dealing or contracting with the
Corporation  either as a vendor,  purchaser or otherwise,  nor in the absence of
fraud shall any  transaction or contract of the  Corporation be void or voidable
or  affected by reason of the fact that any  director,  or any firm of which any
director is a member,  or any  corporation  of which any director is an officer,
director  or  stockholder,  is in any  way  interested  in such  transaction  or
contract,  provided that at the meeting of the Board of Directors, at which said
contract or transaction is authorized or confirmed, the existence of an interest
of such director, firm or corporation is disclosed or made known and there shall
be present a quorum of the Board of Directors a majority of which, consisting of
directors not so  interested,  shall approve such contract or  transaction.  Nor
shall any  director  be liable to  account  to the  Corporation  for any  profit
realized  by him  from or  through  any  such  transaction  or  contract  of the
Corporation ratified or approved as aforesaid,  by reason of the fact that he or
any firm of which he is a member,  or any corporation of which he is an officer,
director,  or  stockholder,  was  interested  in such  transaction  or contract.
Directors so interested  may be counted when present at meetings of the Board of
Directors  for the  purpose  of  determining  the  existence  of a  quorum.  Any
contract,  transaction  or act of the  Corporation  or of the Board of Directors
(whether or not  approved or ratified as  hereinabove  provided)  which shall be
ratified  by a majority  of the votes  cast at any annual or special  meeting at
which a quorum is present  called for such purpose,  or approved in writing by a
majority in interest of the stockholders  having voting power without a meeting,
shall  except as  otherwise  provided  by law, be valid and as binding as though
ratified by every stockholder of the Corporation.  
<PAGE>
SECTION 9.  COMMITTEES  The Board of Directors  may, by resolution  adopted by a
majority  of the  whole  Board,  designate  one or  more  committees  each  such
committee to consist of two or more directors of the Corporation,  which, to the
extent  permitted  by law and  provided in said  resolution,  shall have and may
exercise  the  powers  of  the  Board  over  the  business  and  affairs  of the
Corporation,  and may have power to authorize the seal of the  Corporation to be
affixed to all papers which may require it. Such  committee or committees  shall
have such  name or names as may be  determined  from time to time by  resolution
adopted  by the  Board of  Directors.  A  majority  of the  members  of any such
committee  may  determine its action and fix the time and place of its meetings,
unless the Board of Directors  shall otherwise  provide.  The Board of Directors
shall have power at any time to change the  membership of, to fill vacancies in,
or to dissolve  any such  committee.  

SECTION 10. WRITTEN CONSENTS Any action required or permitted to be taken at any
meeting  of the Board of  Directors  or by any  committee  thereof  may be taken
without a meeting,  if a written consent thereto is signed by all members of the
Board or of such  committee,  as the case may be,  and such  written  consent is
filed with the minutes or  proceedings  of the Board or  committee.  Section 11.
Waiver of NoticeSection  

11. WAIVER OF NOTICE.  Whenever under the provisions of
these By-Laws, or of the Articles of Incorporation, or of any of the laws of the
State of  Maryland,  or other  applicable  statute,  the Board of  Directors  is
authorized  to hold any  meeting  or take any action  after  notice or after the
lapse of any prescribed period of time, a waiver thereof, in writing,  signed by
the person or persons  entitled to such notice or lapse of time,  whether before
or after the time of meeting or action stated herein, shall be deemed equivalent
thereto.  The presence at any meeting of a person or persons  entitled to notice
thereof  shall be deemed a waiver of such  notice as to such  person or persons.
<PAGE>
                                   ARTICLE IV

                                    OFFICERS

SECTION 1. NUMBER AND DESIGNATION The Board of Directors shall each year appoint
from among their  members a Chairman  and a President  of the  Corporation,  and
shall appoint one or more Vice Presidents, a Secretary and a Treasurer and, from
time to time,  any other  officers and agents as it may deem proper.  Any two of
the above-mentioned offices, except those of the President and a Vice President,
may be held by the same person,  but no officer shall  execute,  acknowledge  or
verify any  instrument in more than one capacity if such  instrument be required
by law or by these By-Laws to be executed,  acknowledged  or verified by any two
or more officers.  

SECTION 2. TERM OF OFFICE  The term
of office of all officers shall be one year or until their respective successors
are  chosen;  but any  officer  or agent  chosen  or  appointed  by the Board of
Directors may be removed, with or without cause, at any time, by the affirmative
vote of a  majority  of the  members  of the Board  then in  office.  Section 3.
DutiesSection  3. Duties.  Subject to such limitations as the Board of Directors
may from time to time prescribe, the officers of the Corporation shall each have
such powers and duties as  generally  appertain to their  respective  offices as
well as such  powers  and  duties as from time to time may be  conferred  by the
Board of Directors.

 <PAGE>
                                ARTICLE V

                              CERTIFICATE OF STOCK

SECTION 1. FORM AND ISSUANCE Each
stockholder of the Corporation shall be entitled upon request,  to a certificate
or  certificates,  in such form as the Board of Directors  may from time to time
prescribe,  which shall  represent  and certify the number of shares of stock of
the Corporation owned by such stockholder.  The certificates for shares of stock
of the Corporation shall bear the signature,  either manual or facsimile, of the
President or a Vice President and the Treasurer or an Assistant Treasurer or the
Secretary  or an Assistant  Secretary,  and shall be sealed with the seal of the
Corporation  or bear a  facsimile  of  such  seal.  The  validity  of any  stock
certificate shall not be affected if any officer whose signature appears thereon
ceases to be an officer of the Corporation before such certificate is issued.
                 
SECTION 2. TRANSFER OF STOCK  The
shares of stock of the  Corporation  shall be  transferable  on the books of the
Corporation  by the holder thereof in person or by a duly  authorized  attorney,
upon  surrender for  cancellation  of a certificate or  certificates  for a like
number of shares, with a duly executed assignment and power of transfer endorsed
thereon or attached thereto, or, if no certificate has been issued to the holder
in  respect  of shares of stock of the  Corporation,  upon  receipt  of  written
instructions,  signed by such holder,  to transfer  such shares from the account
maintained  in the name of such  holder by the  Corporation  or its agent.  Such
proof of the  authenticity of the signatures as the Corporation or its agent may
reasonably require shall be provided.
                  
SECTION 3. LOST, STOLEN. DESTROYED AND MUTILATED  CERTIFICATESSECTION The holder
of any stock of the Corporation shall immediately  notify the Corporation of any
loss,  theft,  destruction or mutilation of any  certificate  therefor,  and the
Board of  Directors  may,  in its  discretion,  cause to be  issued to him a new
certificate  or  certificates  of stock,  upon the  surrender  of the  mutilated
certificate or in case of loss,  theft or destruction  of the  certificate  upon
satisfactory  proof  of such  loss,  theft,  or  destruction;  and the  Board of
Directors  may,  in its  discretion,  require  the owner of the lost,  stolen or
destroyed certificate, or his legal representatives,  to give to the Corporation
and to such  registrar  or transfer  agent as may be  authorized  or required to
countersign such new certificate or certificates a bond, in such sum as they may
direct,  and with such  surety or  sureties,  as they may direct,  as  indemnity
against any claim that may be made  against them or any of them on account of or
in  connection  with  the  alleged  loss,  theft,  or  destruction  of any  such
certificates.  

<PAGE>
SECTION  4.  RECORD  DATE   The Board of
Directors  may fix,  in  advance,  a date as the record  date for the purpose of
determining  stockholders  entitled  to notice of, or to vote at, any meeting of
stockholders, or stockholders entitled to receive payment of any dividend or the
allotment of any rights, or in order to make a determination of stockholders for
any other  proper  purpose.  Such date,  in any case,  shall be not more than 90
days, and in case of a meeting of stockholders,  not less than 10 days, prior to
the  date on  which  the  particular  action  requiring  such  determination  of
stockholders  is to be  taken.  In lieu of  fixing a record  date,  the Board of
Directors may provide that the stock transfer books shall be closed for a stated
period but not to exceed,  in any case, 20 days prior to the date of any meeting
of  stockholders  or the date for payment of any  dividend or the  allotment  of
rights.  If the stock  transfer  books are closed for the purpose of determining
stockholders entitled to notice of or to vote at a meeting of stockholders, such
books shall be closed for at least 10 days  immediately  preceding such meeting.
If no record  date is fixed  and the stock  transfer  books are not  closed  for
determination  of  stockholders,  the  record  date  for  the  determination  of
stockholders  entitled  to notice of, or to vote at, a meeting  of  stockholders
shall be at the close of business  on the day on which  notice of the meeting is
mailed or the day 30 days before the  meeting,  whichever  is closer date to the
meeting,  and the record date for the determination of stockholders  entitled to
receive  payment of a dividend  or an  allotment  of any rights  shall be at the
close of business on the day on which the  resolution  of the Board of Directors
declaring  the  dividend or allotment  of rights is adopted,  provided  that the
payment or  allotment  date shall not be more than 90 days after the date of the
adoption of such resolution.

                                   ARTICLE VI

                                 CORPORATE BOOKS

                  The  books  of  the  Corporation,  except  the  original  or a
duplicate stock ledger,  may be kept outside the State of Maryland at such place
or places  as at the Board of  Directors  may from time to time  determine.  The
original or  duplicate  stock ledger  shall be  maintained  at the office of the
Corporation's transfer agent.

                                   ARTICLE VII

                                   SIGNATURES

                  Except as otherwise  provided in these By-Laws or as the Board
of Directors  may  generally or in  particular  cases  authorize  the  execution
thereof in some other manner, all deeds, leases,  transfers,  contracts,  bonds,
notes,  checks,  drafts and other obligations made,  accepted or endorsed by the
Corporation and all endorsements,  assignments, transfers, stock powers or other
instruments  of transfer of  securities  owned by or standing in the name of the
Corporation shall be signed or executed by two officers of the Corporation,  who
shall be the President or a Vice President and a Vice  President,  the Secretary
or the Treasurer.


<PAGE>
                                  ARTICLE VIII

                                   FISCAL YEAR

                  The fiscal year of the  Corporation  shall be  established  by
resolution of the Board of Directors of the Corporation.

                                   ARTICLE IX

                                 CORPORATE SEAL

                  The corporate seal of the Corporation  shall consist of a flat
faced  circular  die  with  the word  "Maryland"  together  with the name of the
Corporation, the year of its organization,  and such other appropriate legend as
the Board of Directors may from time to time determine, cut or engraved thereon.
In lieu of the corporate seal, when so authorized by the Board of Directors or a
duly  empowered  committee  thereof,  a facsimile  thereof may be  impressed  or
affixed or reproduced.

                                    ARTICLE X

                                 INDEMNIFICATION

                  As part of the consideration for agreeing to serve and serving
as a director of the  Corporation,  each  director of the  Corporation  shall be
indemnified  by  the  Corporation   against  every  judgment,   penalty,   fine,
settlement, and reasonable expense (including attorneys' fees) actually incurred
by the director in connection with any threatened,  pending or completed action,
suit or proceeding, whether civil, criminal, administrative or investigative, in
which the director  was, is, or is  threatened  to be made a named  defendant or
respondent (or otherwise  becomes a party) by reason of such director's  service
in that  capacity  or status as such,  and the amount of every  such  judgement,
penalty,  fine,  settlement and  reasonable  expense so incurred by the director
shall be paid by the Corporation or, if paid by the director,  reimbursed to the
director by the  Corporation,  subject only to the  conditions  and  limitations
imposed by the applicable  provisions of Section 2-418 of the  Corporations  and
Associations  Article of the Annotated  Code of the State of Maryland and by the
provisions of Section 17(h) of the United States Investment  Company Act of 1940
as  interpreted  and as required to be  implemented  by Securities  and Exchange
Commission  Release No.  IC-11330 of September 4, 1980. The foregoing  shall not
limit  the  authority  of the  Corporation  to  indemnify  any of its  officers,
employees or agents to the extent consistent with applicable law.

<PAGE>
                                   ARTICLE XI

                                   AMENDMENTS

                  All By-Laws of the Corporation shall be subject to alteration,
amendment, or repeal, and new By-Laws not inconsistent with any provision of the
Articles  of  Incorporation  of the  Corporation  may  be  made,  either  by the
affirmative vote of the holders of record of a majority of the outstanding stock
of the  Corporation  entitled  to vote in  respect  thereof,  given at an annual
meeting or at any special meeting,  provided notice of the proposed  alteration,
amendment,  or repeal of the proposed new By-Laws is included in or  accompanies
the notice of such  meeting,  or by the  affirmative  vote of a majority  of the
whole Board of Directors  given at a regular or special  meeting of the Board of
Directors,  provided that the notice of any such special meeting  indicates that
the By-Laws are to be altered, amended,  repealed, or that new By-Laws are to be
adopted.


<PAGE>

CONSENT OF INDEPENDENT AUDITORS


Lord Abbett Developing Growth Fund, Inc.:

We consent to the incorporation by reference in Post-Effective  Amendment No. 24
to  Registration  Statement  No.  2-62797  our report  dated  February  25, 1998
appearing in the annual report to shareholders  and to the reference to us under
the caption "Financial Highlights" in the Prospectus and to the references to us
under the captions  "Investment  Advisory  and Other  Services"  and  "Financial
Statements" in the Statement of Additional  Information,  both of which are part
of such Registration Statement.




DELOITTE & TOUCHE LLP

New York, New York
May 20, 1998

<PAGE>

                                                                     EXHIBIT 16



LORD ABBETT DEVELOPING GROWTH FUND, INC.
POST EFFECTIVE AMENDMENT NO. 24 ON FORM N-1A

CLASS A SHARES

                  FISCAL YEAR ENDING JANUARY 31, 1998


                                           1 Year   5 Year   10 Years

Initial Investment                          $1,000   $1,000   $1,000
Dividend by Initial Offering Price          $13.58   $10.73    $6.90

Equals Shares Purchased                     73.638  93.197   144.928
 
Plus Shares Acquired through Dividend
and Capital Gains Reinvestment               8.524   76.290   168.187

Equals Shares held at Ending Peiord Date     82.162  169.487  313.115

Multiplied by Net Asset Value at Ending
Period Date                                  14.27    14.27    14.27

Equals Ending Value before Deduction of
CDSC at Period End Date                     $1,173   $2,558   $4,468
Less Deferred Sales Charge                       0        0        0

Equals Ending Redeemable Value(ERV)at
Period End Date                             $1,173   $2,558   $4,468

Divide ERV by $1000                         $1.173   $2.558    4.468

Subtract 1                                  $0.173   $1.558   $3.468

Expressed as a Percentage-Equals the Aggregate
Total Return for the Period                 17.30%   155.80%  346.80%

Divide ERV by $1000                         1.173    2.558     4.468

Raise to the power of                       1        0.2       0.1

Equals                                      1.173    1.207    1.161

Subtract 1                                  0.173    0.207    0.162

Expressed as a Percentage-Equals the Average
Annualized Total Return for the Period      17.30%   20.66%   16.15%


CLASS B SHARES

                  FISCAL YEAR ENDING JANUARY 31, 1998

                                            1 Year   Life of Class

Initial Investment                          $1,000   $1,000
Dividend by Initial Offering Price          $12.75   $12.14

Equals Shares Purchased                     78.431   82.372

Plus Shares Acquired through Dividend
and Capital Gains Reinvestment               9.015    22.065

Equals Shares held at Ending Peiord Date    87.446   104.437

Multiplied by Net Asset Value at Ending
Period Date                                  14.12    14.12
Equals Ending Value before Deduction of
CDSC at Period End Date                     $1,235    1,475
Less Deferred Sales Charge                      4%       4%
Equals Ending Redeemable Value(ERV)at
Period End Date                          $1,185.35   $1,415.67

Divide ERV by $1000                         $1.185   $1.416

Subtract 1                                  $0.185   $0.416

Expressed as a Percentage-Equals the Aggregate
Total Return for the Period                 18.54%   41.57%

Divide ERV by $1000                         1.185    1.416

Raise to the power of                       1      0.664845173

Equals                                    1.185      1.260
Subtract 1                                0.185      0.260

Expressed as a Percentage-Equals the Average
Annualized Total Return for the Period   18.54%      26.08%



CLASS C SHARES

                  FISCAL YEAR ENDING JANUARY 31, 1998

1 Year                                      1 Year  Life of Class

Initial Investment                          $1,000   $1,000
Dividend by Initial Offering Price          $12.75   $12.14

Equals Shares Purchased                     78.431   82.372

Plus Shares Acquired through Dividend
and Capital Gains Reinvestment               9.009   22.059

Equals Shares held at Ending Peiord Date    87.440   104.431

Multiplied by Net Asset Value at Ending
Period Date                                 14.13    14.13
Equals Ending Value before Deduction of
CDSC at Period End Date                    $1,236    1,476
Less Deferred Sales Charge                    0        0 
Equals Ending Redeemable Value(ERV)at
Period End Date                            $1,236   $1,476

Divide ERV by $1000                         1.236    1.476

Subtract 1                                 $0.236   $0.476

Expressed as a Percentage-Equals the Aggregate
Total Return for the Period                23.55%   47.56%

Divide ERV by $1000                        1.236    1.476

Raise to the power of                      1        0.664845173

Equals                                     1.236    1.295
Subtract 1                                 0.236    0.295

Expressed as a Percentage-Equals the Average
Annualized Total Return for the Period     23.55%   29.61%




CLASS P SHARES
                  FISCAL YEAR ENDING JANUARY 31, 1998

                                        Life of Class

Initial Investment                          $1,000
Dividend by Initial Offering Price          $14.38

Equals Shares Purchased                      69.541

Plus Shares Acquired through Dividend
and Capital Gains Reinvestment               0.000

Equals Shares held at Ending Peiord Date     69.541

Multiplied by Net Asset Value at Ending
Period Date                                  14.26
Equals Ending Value before Deduction of
CDSC at Period End Date                      $992
Less Deferred Sales Charge                      0 
Equals Ending Redeemable Value(ERV)at
Period End Date                              $992

Divide ERV by $1000                         0.992

Subtract 1                                ($0.008)

Expressed as a Percentage-Equals the Aggregate
Total Return for the Period                -0.80%

Divide ERV by $1000                         0.992

Raise to the power of                        1

Equals                                      0.992
Subtract 1                                 (0.008)

Expressed as a Percentage-Equals the Average
Annualized Total Return for the Period     -0.80%

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000276914
<NAME> LORD ABBETT DEVELOPING GROWTH FUND, INC.
<SERIES>
     <NUMBER>  001
     <NAME>    CLASS A     
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          JAN-31-1998
<PERIOD-START>                             FEB-01-1997
<PERIOD-END>                               JAN-31-1998
<INVESTMENTS-AT-COST>                        382106657
<INVESTMENTS-AT-VALUE>                       527784847
<RECEIVABLES>                                  8577727
<ASSETS-OTHER>                                 1262239
<OTHER-ITEMS-ASSETS>                          26000000
<TOTAL-ASSETS>                               563624813
<PAYABLE-FOR-SECURITIES>                       9412670
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      1125856
<TOTAL-LIABILITIES>                           10538526
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     406065096 
<SHARES-COMMON-STOCK>                         32001170
<SHARES-COMMON-PRIOR>                         24903156
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<ACCUMULATED-NET-GAINS>                        1405805
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     145678190
<NET-ASSETS>                                 553086287
<DIVIDEND-INCOME>                               707686
<INTEREST-INCOME>                               571163
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<EXPENSES-NET>                                 3984897
<NET-INVESTMENT-INCOME>                      (2706047)
<REALIZED-GAINS-CURRENT>                      48514192
<APPREC-INCREASE-CURRENT>                     36271007
<NET-CHANGE-FROM-OPS>                         81534196
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
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<NUMBER-OF-SHARES-SOLD>                       10892536
<NUMBER-OF-SHARES-REDEEMED>                    6740126
<SHARES-REINVESTED>                            2945604
<NET-CHANGE-IN-ASSETS>                       222728118
<ACCUMULATED-NII-PRIOR>                      (4267546)
<ACCUMULATED-GAINS-PRIOR>                      5222405
<OVERDISTRIB-NII-PRIOR>                              0
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<GROSS-EXPENSE>                                3984987
<AVERAGE-NET-ASSETS>                         376245906
<PER-SHARE-NAV-BEGIN>                            12.80
<PER-SHARE-NII>                                  (.10)
<PER-SHARE-GAIN-APPREC>                           3.16
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                         1.59
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              14.27
<EXPENSE-RATIO>                                   1.06
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000276914
<NAME> LORD ABBETT DEVELOPING GROWTH FUND, INC.
<SERIES>
     <NUMBER>  002
     <NAME>    CLASS B     
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          JAN-31-1998
<PERIOD-START>                             FEB-01-1997
<PERIOD-END>                               JAN-31-1998
<INVESTMENTS-AT-COST>                        382106657
<INVESTMENTS-AT-VALUE>                       527784847
<RECEIVABLES>                                  8577727
<ASSETS-OTHER>                                 1262239
<OTHER-ITEMS-ASSETS>                          26000000
<TOTAL-ASSETS>                               563624813
<PAYABLE-FOR-SECURITIES>                       9412670
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      1125856
<TOTAL-LIABILITIES>                           10538526
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     406065096
<SHARES-COMMON-STOCK>                          4397867
<SHARES-COMMON-PRIOR>                           561050
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<ACCUMULATED-NET-GAINS>                        1405805
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<ACCUM-APPREC-OR-DEPREC>                     145678190
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<DIVIDEND-INCOME>                                41171
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<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  432223
<NET-INVESTMENT-INCOME>                       (342187)
<REALIZED-GAINS-CURRENT>                      48514192
<APPREC-INCREASE-CURRENT>                     36271007
<NET-CHANGE-FROM-OPS>                         81534196
<EQUALIZATION>                                       0
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<NUMBER-OF-SHARES-SOLD>                        3871210
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<SHARES-REINVESTED>                             239708
<NET-CHANGE-IN-ASSETS>                       222728118
<ACCUMULATED-NII-PRIOR>                        (26385)
<ACCUMULATED-GAINS-PRIOR>                      5222405
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           137815
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 432223
<AVERAGE-NET-ASSETS>                          24601091
<PER-SHARE-NAV-BEGIN>                            12.75
<PER-SHARE-NII>                                  (.20)
<PER-SHARE-GAIN-APPREC>                           3.14
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                         1.57
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              14.12
<EXPENSE-RATIO>                                   1.76
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        



</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<CIK> 0000276914
<NAME> LORD ABBETT DEVELOPING GROWTH FUND, INC.
<SERIES>
     <NUMBER>  003
     <NAME>    CLASS C     
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          JAN-31-1998
<PERIOD-START>                             FEB-01-1997
<PERIOD-END>                               JAN-31-1998
<INVESTMENTS-AT-COST>                        382106657
<INVESTMENTS-AT-VALUE>                       527784847
<RECEIVABLES>                                  8577727
<ASSETS-OTHER>                                 1262239
<OTHER-ITEMS-ASSETS>                          26000000
<TOTAL-ASSETS>                               563624813
<PAYABLE-FOR-SECURITIES>                       9412670
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      1125856
<TOTAL-LIABILITIES>                           10538526
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     406065096
<SHARES-COMMON-STOCK>                          2378732
<SHARES-COMMON-PRIOR>                           348266
<ACCUMULATED-NII-CURRENT>                     (218605)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        1405805
<OVERDISTRIBUTION-GAINS>                             0
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<DIVIDEND-INCOME>                                25569
<INTEREST-INCOME>                                28974
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  257005
<NET-INVESTMENT-INCOME>                       (202463)
<REALIZED-GAINS-CURRENT>                      48514192
<APPREC-INCREASE-CURRENT>                     36271007
<NET-CHANGE-FROM-OPS>                         81534196
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                      49079789
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<NUMBER-OF-SHARES-SOLD>                        2131700
<NUMBER-OF-SHARES-REDEEMED>                     252520
<SHARES-REINVESTED>                             151286
<NET-CHANGE-IN-ASSETS>                       222728118
<ACCUMULATED-NII-PRIOR>                        (16153)
<ACCUMULATED-GAINS-PRIOR>                      5222405
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            84368
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 257005
<AVERAGE-NET-ASSETS>                          15060399
<PER-SHARE-NAV-BEGIN>                            12.75
<PER-SHARE-NII>                                  (.19)
<PER-SHARE-GAIN-APPREC>                           3.14
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                         1.57
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              14.13
<EXPENSE-RATIO>                                   1.71
<AVG-DEBT-OUTSTANDING>                               0
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000276914
<NAME> LORD ABBETT DEVELOPING GROWTH FUND, INC.
<SERIES>
     <NUMBER>  004
     <NAME>    CLASS P     
       
<S>                             <C>
<PERIOD-TYPE>                   1-MO
<FISCAL-YEAR-END>                          JAN-31-1998
<PERIOD-START>                             JAN-05-1998
<PERIOD-END>                               JAN-31-1998
<INVESTMENTS-AT-COST>                        382106657
<INVESTMENTS-AT-VALUE>                       527784847
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<OTHER-ITEMS-ASSETS>                          26000000
<TOTAL-ASSETS>                               563624813
<PAYABLE-FOR-SECURITIES>                       9412670
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      1125856
<TOTAL-LIABILITIES>                           10538526
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     406065096
<SHARES-COMMON-STOCK>                            45439
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                        (306)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        1405805
<OVERDISTRIBUTION-GAINS>                             0
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<NET-ASSETS>                                 553086287
<DIVIDEND-INCOME>                                  103
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<EXPENSES-NET>                                     526
<NET-INVESTMENT-INCOME>                          (305)
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<APPREC-INCREASE-CURRENT>                     36271007
<NET-CHANGE-FROM-OPS>                         81534196
<EQUALIZATION>                                       0
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<DISTRIBUTIONS-OF-GAINS>                      49079789
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<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                      5222405
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
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<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    526
<AVERAGE-NET-ASSETS>                            633819
<PER-SHARE-NAV-BEGIN>                            14.38
<PER-SHARE-NII>                                  (.01)
<PER-SHARE-GAIN-APPREC>                          (.11)
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<PER-SHARE-DISTRIBUTIONS>                            0
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<EXPENSE-RATIO>                                    .08
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


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