LORD ABBETT DEVELOPING GROWTH FUND INC /NEW/
485BPOS, 1996-07-10
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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. 21 [X]
                                       And

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

                       Post-Effective Amendment No. 20 [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

                  Kenneth B. Cutler, Vice President & Secretary
                     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) of Rule 485

     X   on July 15, 1996 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.

Registrant  has  registered  an  indefinite   amount  of  securities  under  the
Securities Act of 1933 pursuant to Rule 24f-2(a) (1) and a Rule 24f-2 Notice for
Registrant's  most recent fiscal year was filed with the  Commission on or about
March 29, 1996.



<PAGE>



                    LORD ABBETT DEVELOPING GROWTH FUND, INC.
                                    FORM N-1A
                              Cross Reference Sheet
                         Post-Effective Amendment No. 21
                            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
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


<PAGE>




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


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.
THE GENERAL MOTORS BUILDING
767 FIFTH AVENUE
NEW YORK, NY 10153-0203
800-426-1130

LORD ABBETT DEVELOPING GROWTH FUND, INC. ("WE" OR THE "FUND"),  IS A MUTUAL FUND
WITH THREE  CLASSES OF SHARES.  THESE  CLASSES,  CALLED CLASS A, B AND C SHARES,
PROVIDE INVESTORS WITH DIFFERENT INVESTMENT OPTIONS

IN PURCHASING  SHARES OF THE FUND.  SEE  "PURCHASES"  FOR A DESCRIPTION OF THESE
CHOICES.  THE CLASS B AND C SHARES  WILL BE  OFFERED TO THE PUBLIC FOR THE FIRST
TIME ON OR ABOUT AUGUST 1, 1996.

OUR INVESTMENT  OBJECTIVE IS 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  OUR  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 OUR OBJECTIVE  WILL BE ACHIEVED.  VOLATILE PRICE
MOVEMENT CAN BE EXPECTED.  THIS  PROSPECTUS SETS FORTH CONCISELY THE INFORMATION
ABOUT  THE FUND  THAT A  PROSPECTIVE  INVESTOR  SHOULD  KNOW  BEFORE  INVESTING.
ADDITIONAL  INFORMATION  ABOUT THE FUND HAS BEEN FILED WITH THE  SECURITIES  AND
EXCHANGE  COMMISSION AND IS AVAILABLE UPON REQUEST WITHOUT CHARGE. THE STATEMENT
OF ADDITIONAL  INFORMATION IS INCORPORATED BY REFERENCE INTO THIS PROSPECTUS AND
MAY  BE  OBTAINED,  WITHOUT  CHARGE,  BY  WRITING  TO  THE  FUND  OR BY  CALLING
800-874-3733.  ASK FOR "PART B OF THE  PROSPECTUS -- THE STATEMENT OF ADDITIONAL
INFORMATION".

THE DATE OF THIS  PROSPECTUS  AND OF THE STATEMENT OF ADDITIONAL  INFORMATION IS
JULY 15, 1996.

PROSPECTUS

Investors should read and retain this Prospectus.  Shareholder  inquiries should
be made in  writing to the Fund or by  calling  800-821-5129.  You also can make
inquiries through your broker-dealer.

Shares of the Fund are not deposits or obligations of, or guaranteed or endorsed
by, any bank,  and the shares are not federally  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.

        1       Investment Objective    2

        2       Fee Table               2

        3       Financial Highlights    3

        4       How We Invest           3

        5       Purchases               5

        6       Shareholder Services    13

        7       Our Management          14

        8       Dividends, Capital Gains
                Distributions and Taxes 14

        9       Redemptions             15

        10      Performance             16

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.


<PAGE>

1    INVESTMENT OBJECTIVE

Our investment  objective is 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.

2    FEE TABLE

A summary of the Fund's expenses is set forth in the table below. The example is
not a representation of past or future expenses.  Actual expenses may be greater
or less than those shown.

<TABLE>
<CAPTION>

                                             Class A        Class B                       Class C
                                             Shares         Shares                        Shares

<S>                                        <C>            <C>                            <C>

Shareholder Transaction Expenses
(as a percentage of offering price)
Maximum Sales Load(1) on Purchases
(See Purchases)                              5.75%(2)(3)     None                         None

Deferred Sales Load(1) (See Purchases)        None(2)       5% if shares are redeemed     1% if shares
                                                            before 1st anniversary        are redeemed
                                                            of purchase, declining        before 1st anniversary
                                                            to 1% before 6th              of purchase(2)(3)
                                                            anniversary and
                                                            eliminated on and
                                                            after 6th anniversary(2)(3)
Annual Fund Operating Expenses(4)
(as a percentage of average net assets)

Management Fees (See "Our Management")       0.64%          0.64%                         0.64%
12b-1 Fees (See "Purchases")                 0.19%(2)(3)    1.00%(2)(3)                   1.00%(2)(3)
Other Expenses (See "Our Management")        0.21%          0.21%                         0.21%
Total Operating Expenses                     1.04%          1.85%                         1.85%

<FN>
Example:  Assume an  annual  return of 5% and there is no change in the level of
expenses  described above.  For a $1,000  investment,  with  reinvestment of all
distributions,  you would have paid the following  total  expenses if you closed
your account after the number of years indicated.

                       1 year      3 years   5 years   10 years

Class A shares(4)       $67        $89       $112      $177
Class B shares(4)       $58        $86       $109      $195(5)
Class C shares(4)       $19        $58       $100      $217

(1)  Sales  "load" is referred to as sales  "charge",  "deferred  sales load" is
     referred to as  "contingent  deferred  sales charge" (or "CDSC") and "12b-1
     fees"  which  consist  of a  "service  fee"  and a  "distribution  fee" are
     referred to by either or both of these terms where appropriate with respect
     to Class A, Class B and Class C shares throughout this Prospectus.
(2)See "Purchases" for descriptions of the Class A front-end sales charges,  the
     CDSC payable on certain  redemptions of Class A, Class B and Class C shares
     and  separate  Rule 12b-1 plans  applicable  to each class of shares of the
     Fund. The CDSC reimburses: (a) the Fund, in the case of Class A and Class C
     shares, and (b) Lord Abbett Distributor LLC, in the case of Class B shares.
(3)  Although the Fund does not, with respect to the Class B and Class C shares,
     charge a front-end sales charge,  investors  should be aware that long-term
     shareholders  may pay, under the Rule 12b-1 plans applicable to the Class B
     and Class C shares of the Fund (both of which pay annual 0.25%  service and
     0.75% distribution  fees), more than the economic equivalent of the maximum
     front-end  sales  charge as  permitted  by  certain  rules of the  National
     Association of Securities Dealers,  Inc. Likewise,  with respect to Class A
     shares,  investors  should be aware that,  long-term,  such  maximum may be
     exceeded  due to the Rule 12b-1  plan  applicable  to Class A shares  which
     permits the Fund to pay up to 0.50% in total annual fees,  half for service
     and the other half for  distribution.  The 12b-1 fee for the Class A shares
     has been  restated to reflect  estimated  current  fees under the  recently
     amended  Class A 12b-1 plan;  the actual 12b-1 fees for such shares for the
     fiscal year ended January 31, 1996 under the former plan were 0.18%.
(4)  The annual operating  expenses shown in the summary are the actual expenses
     for the fiscal year ended January 31, 1996 except for the  substitution  of
     estimated  12b-1 fees for Class A, B and C shares as  explained  in notes 2
     and 3.
(5)  Based  on  conversion  of Class B shares  to Class A shares  on the  eighth
     anniversary  of the  purchase of Class B shares and closing your account by
     redeeming Class A shares after ten years.

The  foregoing  is provided  to give  investors  a better  understanding  of the
expenses that are incurred by an investment in the Fund.
</FN>
</TABLE>

<PAGE>

3    FINANCIAL HIGHLIGHTS

The  following  table has been  audited by  Deloitte & Touche  llp,  independent
accountants,  in  connection  with  their  annual  audit of the Funds  Financial
Statements,  whose report thereon is  incorporated by reference in the Statement
of Additional  Information and may be obtained on request, and has been included
herein in reliance upon their authority as experts in accounting and auditing.

<TABLE>
<CAPTION>
Per Class A+ Share Operating                                   Year Ended October 31,
Performance:                          1996    1995      1994      1993      1992      1991      1990      1989     1988      1987
<S>                                  <C>         <C>       <C>       <C>        <C>     <C>        <C>       <C>      <C>     <C>
Net asset value, beginning of year   $9.58   $10.65   $10.11    $10.86     $7.98     $6.96     $7.19     $6.50      $8.87   $8.41
Income from investment operations
Net investment income (loss)          (.02)    (.04)    (.05)     (.02)      .02       .01*      .01*      .03*      (.04)   (.04)
Net realized and unrealized
gain (loss) on investments            4.795  (.2225)    1.62      (.24)     3.28      1.01      (.02)      .66      (1.05)    .89
Total from investment operations      4.775  (.2625)    1.57      (.26)     3.30      1.02      (.01)      .69      (1.09)    .85
Distributions
Dividends from net investment income   --      --       --        (.02)     (.02)     --        (.03)      --        --      --
Distributions from net realized gain (2.865) (.8075)   (1.03)     (.47)     (.40)     --        (.19)      --      (1.28)   (.39)
Net asset value, end of year        $11.49   $9.58    $10.65    $10.11    $10.86     $7.98     $6.96     $7.19     $6.50    $8.87
Total Return**                       50.22%  (2.74)%   16.41%    (2.31)%   41.53%    14.66%     (.38)%   10.62%   (12.64)%  10.22%
Ratios/Supplemental Data:

Net assets, end of year (000)   $197,602   $127,579  $143,693  $151,068  $156,932  $117,786  $119,836  $163,676 $181,401   $265,968
Ratios to Average Net Assets:
Expenses                              1.03%  1.31%      1.34%     1.31%     1.14%     1.24%      1.13%   1.08%       .92%    .90%
Net investment income (loss)          (.52)% (.38)%     (.51)%    (.25)%     .26%      .20%       .08%    .37%      (.30)%  (.41)%
Portfolio turnover rate              50.12%  17.57%    16.29%    17.22%    12.62%    12.76%     14.57%  20.20%     15.09%  6.95%
<FN>

+ The Fund had only one class of shares  prior to July 12,  1996.  That class of
shares is now designated  Class A shares.  * Computed by dividing the respective
dollar amounts per the Statement of Operations by average shares outstanding.

** Total return does not consider the effects of sales charges.
    See Notes to Financial Statements.
</FN>
</TABLE>

4    HOW WE INVEST

Our present  investment  strategy,  as  developed by Lord,  Abbett & Co.  ("Lord
Abbett"),  our  investment  manager,  is based on the four  phases of  corporate
growth.  As described  below,  only the second (or  developing  growth) phase is
characterized by a dramatic rate of growth.  We look for companies in that phase
and, under normal circumstances, will invest at least 65% of our total assets in
securities of such companies. We also may invest in companies which are in their
formative phase.  Developing  growth companies are almost always small,  usually
young and their  shares  are  generally  traded  over the  counter.  Having,  in
management's view, passed the pitfalls of the formative years, they are now in a
position to grow rapidly in their market.

        THE FOUR PHASES OF BUSINESS GROWTH
        (AS PERCEIVED BY LORD ABBETT)

Phase  1--  Formative:  Phase 1 has  high  risk.  Companies  in this  phase  are
formative  and the perils of infancy take a high toll during these years.  Skill
of  management  and growth of revenues  and  earnings  permit some  companies to
survive and advance into the second phase.

Phase 2 -- Developing Growth:  Phase 2 usually is a period of swift development,
when growth occurs at a rate rarely  equaled by  established  companies in their
mature years. We focus on companies which we believe are strongly  positioned in
this phase. Of course,  the actual growth of a company cannot be foreseen and it
may be difficult to determine in which phase a company is presently situated.

Phase 3 --  Established  Growth:  Phase 3 is a time of  established  growth when
competitive  forces,  regulations and internal  bureaucracy often begin to blunt
the sharp edge of success in the marketplace.  Phase 4 -- Maturity: Phase 4 is a
time of maturity when companies ease into a growth pattern that roughly reflects
the increase in Gross Domestic Product.


<PAGE>

At any given time,  there are many hundreds of  publicly-traded  corporations in
the  developing  growth phase.  In choosing from among them, we look for special
characteristics  that will help their growth. These can include a unique product
or service for which we foresee a rising demand; a special area of technological
expertise;  the ability to service a region that is growing faster than average;
a competitive  advantage or new opportunities in foreign trade or from shifts in
government priorities and programs; or an ability to take advantage of growth of
consumers' discretionary income and demographic changes.

We also look for certain financial charac-teristics such as: at least five years
of   higher-than-average   growth  of   revenues   and   earnings   per   share;
higher-than-average  returns on equity; ability to finance growth in the form of
a  lower-than-average  ratio of  long-term  debt to capital  and  price/earnings
ratios that are below expected growth rates.

We also look for certain characteristics of management in addition to those that
are implied by the financial data. We look for management that is  well-seasoned
and  diverse  in  its  talent  and  that  is  aggressive  enough  to  seize  the
opportunities  we  perceive  in each  company's  future.  Finally,  we look  for
management  that has  demonstrated  an ability to manage through a full economic
cycle. We do not,  however,  invest in order to control  management.  Securities
being considered for our portfolio are analyzed solely on traditional investment
fundamentals.  We  do  not  select  securities  based  on  trends  indicated  by
chartists'  technical  analyses.  In  addition  to the  financial  data  already
mentioned,  we evaluate the market for each company's products or services,  the
strengths and  weaknesses of  competitors,  the  availability  of raw materials,
diversity of product mix, etc. Finally,  in assembling our portfolio,  we try to
diversify our investments. Within the bounds of other criteria, we try to invest
in many  securities  and industries so that any  misjudgments  we might make are
adequately cushioned.

Up to 10% of our net  assets  (at the time of  investment)  may be  invested  in
foreign  securities (of the type described  above)  primarily  traded in foreign
countries.

Although we have no present plans to change our policies,  if we determine  that
our investment objective can best be achieved by a change in investment policies
or  strategy,  we reserve  the right to make such a change  without  shareholder
approval,  provided  it is not  prohibited  by our  investment  restrictions  or
applicable  law.  Any  material  change  will  first be  disclosed  in a current
prospectus. There may be times when management believes that economic conditions
or general  levels of common stock  prices are such that it would be  advisable,
for defensive  reasons,  to curtail  investments in common  stocks.  During such
periods,  we may invest a  substantial  portion of our portfolio in cash or cash
equivalents  (short-term   obligations  of  banks,   corporations  or  the  U.S.
Government).  We will not change our investment  objective  without  shareholder
approval.

Risk Factors. An investment in the Fund is not intended as a complete investment
program. The Fund will not provide significant income. Moreover,  because stocks
of  developing  growth  companies  are more risky and their prices more volatile
than those of mature  companies,  the Fund's net asset value per share is likely
to experience above-average fluctuations.

Securities  markets of foreign  countries in which the Fund may invest generally
are not subject to the same degree of regulation as the U.S.  markets and may be
more volatile and less liquid than the major U.S. markets. Lack of liquidity may
affect the Fund's  ability to purchase or sell large  blocks of  securities  and
thus obtain the best price. There may be less publicly-available  information on
publicly-traded  companies,  banks and governments in foreign  countries than is
generally the case for such entities in the United  States.  The lack of uniform
accounting  standards  and  practices  among  countries  impairs the validity of
direct  com-parisons of valuation  measures (such as price/earnings  ratios) for
securities in different countries.  Other  considerations  include political and
social instability, expropriation, higher transaction costs, foreign government


<PAGE>


controls, currency fluctuations, withholding taxes that cannot be passed through
as a tax credit or deduction to shareholders and different securities settlement
practices. Settlement periods for foreign securities, which are sometimes longer
than those for securities of U.S. issuers, may affect portfolio liquidity. These
different settlement practices may cause missed purchasing  opportunities and/or
the loss of interest on money market and debt investments pending further equity
or long-term debt investments.  In addition, foreign securities held by the Fund
may be traded on days  that the Fund  does not value its  portfolio  securities,
such as Saturdays and customary business holidays, and, accordingly,  the Fund's
net asset value may be significantly  affected on days when  shareholders do not
have access to the Fund.

5    PURCHASES

ALTERNATIVE SALES ARRANGEMENTS

CLASSES OF SHARES.  The Fund offers investors three different classes of shares.
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.

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).  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) 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%.
Class A shares are subject to service and  distribution  fees that are currently
estimated  to total  annually  approximately  0.19 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 in "Buying  Class B
Shares" 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 in "Buying Class C Shares" below.

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.


<PAGE>


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.

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. Although we believe you ought to have a long-term  investment  horizon,
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,  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, Lord Abbett Distributor normally will not accept purchase orders (i) for
Class B shares of $500,000 or more and for Class C shares of  $1,000,000 or more
from a single  investor or (ii) for Retirement  Plans with at least 100 eligible
employees.

INVESTING FOR THE LONGER TERM.  If you are  investing  longer term (for example,
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.


<PAGE>

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 withdrawals  over 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" 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.

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.

GENERAL

HOW  MUCH  MUST YOU  INVEST?  You may buy our  shares  through  any  independent
securities  dealer having a sales  agreement with Lord Abbett  Distributor,  our
exclusive selling agent. Place your order with your investment dealer or send it
to Lord Abbett  Developing  Growth Fund,  Inc.  (P.O.  Box 419100,  Kansas City,
Missouri   64141).   The  minimum  initial   investment  is  $1,000  except  for
Invest-A-Matic  and  Div-Move  ($250  initial and $50  subsequent  minimum)  and
Retirement  Plans ($250 minimum).  See "Shareholder  Services".  For information
regarding  the proper form of a purchase or redemption  order,  call the Fund at
800-821-5129.  This offering may be suspended, changed or withdrawn. Lord Abbett
Distributor  reserves the right to reject any order.  The net asset value of our
shares is  calculated  every  business day as of the close of the New York Stock
Exchange  ("NYSE") by dividing  net assets by the number of shares  outstanding.
Securities  are  valued at their  market  value as more fully  described  in the
Statement of Additional Information.

BUYING SHARES THROUGH YOUR DEALER.  Orders for shares received by the Fund prior
to the  close of the  NYSE,  or  received  by  dealers  prior to such  close and
received by Lord Abbett Distributor prior to the close of its business day, will
be confirmed at the  applicable  public  offering  price  effective at such NYSE
close.  Orders  received by dealers  after the NYSE closes and  received by Lord
Abbett  Distributor  in proper form prior to the close of its next  business day
are executed at the applicable  public  offering price effective as of the close
of the NYSE on that next business day. The dealer is responsible  for the timely
transmission  of orders to Lord Abbett  Distributor.  A business day is a day on
which the NYSE is open for trading.

Lord Abbett Distributor may, for specified periods,  allow dealers to retain the
full sales charge for sales of shares during such periods,  or pay an additional
concession to a dealer who,  during a specified  period,  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


<PAGE>


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 resorts or other locations,
including  meals and  entertainment,  or the  receipt of  merchandise.  The cash
payments will 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.

BUYING  CLASS A  SHARES.  The  offering  price of Class A shares is based on the
per-share  net asset value next  computed  after your order is  accepted  plus a
sales charge as follows:

<TABLE>
<CAPTION>

                              Sales Charge as a             Dealer's
                              Percentage of:                Concession
                                                              as a          To Compute
                                             Net            Percentage      Offering
                              Offering       Amount         of Offering     Price, Divide
        Size of Investment    Price          Invested       Price           NAV by

        <S>                    <C>          <C>            <C>          <C>    
        Less than $50,000       5.75%        6.10%          5.00%          .9425
        $50,000 to $99,999      4.75%        4.99%          4.00%          .9525
        $100,000 to $249,999    3.75%        3.90%          3.25%          .9625
        $250,000 to $499,999    2.75%        2.83%          2.25%          .9725
        $500,000 to $999,999    2.00%        2.04%          1.75%          .9800
        $1,000,000 or more      No Sales Charge             1.00%*        1.0000
<FN>

*Authorized  institutions  receive  concessions on purchases made by a retirement
plan or other qualified  purchaser within a 12-month period  (beginning with the
first net asset value  purchase)  as follows:  1.00% on purchases of $5 million,
0.55%  of the next $5  million,  0.50% of the  next  $40  million  and  0.25% on
purchases over $50 million. See Class A Rule 12b-1 Plan below.
</FN>
</TABLE>

CLASS A SHARE VOLUME  DISCOUNTS.  This section describes several ways to qualify
for a lower  sales  charge  when  purchasing  Class A shares if you inform  Lord
Abbett  Distributor  or the Fund that you are  eligible at the time of purchase.
(1) Any purchaser (as described below) may aggregate a Class A share purchase in
the Fund with any share  purchases of any other  eligible Lord  Abbett-sponsored
fund, together with the current value at maximum offering price of any shares in
the Fund and in any eligible Lord Abbett-sponsored  funds held by the purchaser.
(Holdings  in the  following  funds are not  eligible  for the  above  rights of
accumulation:  Lord  Abbett  Equity  Fund  ("LAEF"),  Lord  Abbett  Series  Fund
("LASF"),  any series of Lord  Abbett  Research  Fund not offered to the general
public  ("LARF") and Lord Abbett U.S.  Government  Securities  Money Market Fund
("GSMMF"),  except for  holdings in GSMMF which are  attributable  to any shares
exchanged  from  a Lord  Abbett-sponsored  fund.)  (2) A  purchaser  may  sign a
non-binding  13-month  statement of  intention to invest  $50,000 or more in any
shares  of the  Fund or in any of the  above  eligible  funds.  If the  intended
purchases  are  completed  during the period,  the total amount of your intended
purchases  of any shares will  determine  the reduced  sales charge rate for the
Class A shares purchased during the period. If not completed, each Class A share
purchase  will be at the sales  charge for the  aggregate  of the  actual  share
purchases. Shares issued upon reinvestment of dividends or distributions are not
included in the statement of  intention.  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.

CLASS A SHARE NET ASSET VALUE PURCHASES.  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  Distributor who consents to such purchases or
by the trustee 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
any national  securities trade  organization to which Lord Abbett or Lord Abbett
Distributor  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  "directors"  and  "employees of Lord Abbett" also include
other family  members and retired  directors and  employees.  Our Class A shares
also may be  purchased  at net asset  value (a) at $1 million or more,  (b) with
dividends  and  distributions  on Class A shares of other Lord  Abbett-sponsored
funds,  except for dividends and distributions on shares of LARF, LAEF and LASF,
(c) under the loan feature of the Lord  Abbett-sponsored  prototype  403(b) plan
for  Class A  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 Class A 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 programs"),  (e) by employees,  partners and
owners of  unaffiliated  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 funds,  (f) through  Retirement
Plans  with at least 100  eligible  employees  and (g)  subject  to  appropriate
documentation,  through a securities dealer where the amount invested represents
redemption  proceeds from shares  ("Redeemed  Shares") of a registered  open-end
management  investment  company  not  distributed  or  managed  by  Lord  Abbett
Distributor or Lord Abbett (other than a money market fund), if such redemptions
have  occurred no more than 60 days prior to the purchase of our Class A shares,
the Redeemed  Shares were held for at least six months prior to  redemption  and
the proceeds of redemption  were maintained in cash or a money market fund prior
to  purchase.  Purchasers  should  consider  the impact,  if any, of  contingent
deferred  sales charges in  determining  whether to redeem shares for subsequent
investment  in our  Class A shares.  Lord  Abbett  Distributor  may  suspend  or
terminate the purchase option referred to in (g) above at anytime.

Our Class A shares may be issued at net asset value in exchange  for the assets,
subject  to  possible  tax  adjustment,  of a  personal  holding  company  or an
investment company.

CLASS A RULE 12B-1 PLAN. We have adopted a Class A share Rule 12b-1 plan (the "A
Plan") which authorizes the payment of fees to authorized  institutions  (except
as to certain  accounts for which  tracking  data is not  available) in order to
provide additional incentives for them (a) to provide continuing information and
investment  services to their Class A  shareholder  accounts  and  otherwise  to
encourage  those accounts to remain invested in the Fund and (b) to sell Class A
shares  of the  Fund.  Under  the A Plan,  in  order to save on the  expense  of
shareholders' meetings and to provide flexibility to the Board of Directors, the
Board,  including a majority of the outside  directors  who are not  "interested
persons"  of the Fund as  defined  in the  Investment  Company  Act of 1940,  is
authorized to approve  annual fee payments from our Class A assets of up to 0.50
of 1% of the average net of such assets  consisting of distribution  and service
fees,  each at a maximum  annual rate not  exceeding  0.25 of 1% except that the
service fee may not exceed 0.15 of 1% in the case of shares sold or attributable
to shares sold prior to July 1, 1990 (the "Fee Ceiling").

Under the A Plan,  the Board has  approved  payments  by the Fund to Lord Abbett
Distributor  which uses or passes on to  authorized  institutions  (1) an annual
service fee (payable  quarterly) of .25% of the average daily net asset value of
the Class A shares  serviced  by  authorized  institutions;  and (2) a  one-time
distribution fee of up to 1% (reduced according to the following schedule: 1% of
the first $5 million,  .55% of the next $5 million, .50% of the next $40 million
and .25% over $50  million),  payable  at the time of sale on all Class A shares
sold during any 12-month period


<PAGE>


starting  from the day of the first net asset  value  sale (i) at the $1 million
level by authorized institutions, including sales qualifying at such level under
the rights of  accumulation  and  statement  of  intention  privileges;  or (ii)
through Retirement Plans with at least 100 eligible employees.  In addition, the
Board  has  approved  for  those  authorized   institutions   which  qualify,  a
supplemental  annual  distribution  fee equal to 0.10% of the average  daily net
asset value of the Class A shares serviced by authorized institutions which have
a satisfactory program for the promotion of such shares comprising a significant
percentage  of the Class A assets,  with a lower than average  redemption  rate.
Institutions  and persons  permitted by law to receive such fees are "authorized
institutions".

Under the A Plan, Lord Abbett  Distributor is permitted to use payments received
to provide continuing  services to Class A shareholder  accounts not serviced by
authorized  institutions and, with Board approval, to finance any activity which
is primarily intended to result in the sale of Class A shares. Any such payments
are subject to the Fee Ceiling.  Any  payments  under that Plan not used by Lord
Abbett Distributor in this manner are passed on to authorized institutions.

Holders of Class A shares on which the 1% sales  distribution  fee has been paid
may be  required to pay to the Fund on behalf of its Class A shares a CDSC of 1%
of the  original  cost or the then net asset value,  whichever  is less,  of all
Class A shares so purchased which are redeemed out of the Lord  Abbett-sponsored
family of funds on or before the end of the twenty-fourth  month after the month
in which  the  purchase  occurred.  (An  exception  is made for  redemptions  by
Retirement  Plans  due to any  benefit  payment  such  as Plan  loans,  hardship
withdrawals,  death,  retirement or separation from service with respect to plan
participants or the  distribution of any excess  contributions.)  If the Class A
shares have been  exchanged  into  another  Lord  Abbett-sponsored  fund and are
thereafter  redeemed out of the Lord Abbett family of funds on or before the end
of such twenty-fourth month, the charge will be collected for the Fund's Class A
shares by the other  fund.  The Fund will  collect  such a charge for other Lord
Abbett-sponsored funds in a similar situation.

BUYING  CLASS B SHARES.  Class B shares  are sold at net  asset  value per share
without an initial  sales  charge.  However,  if Class B shares are redeemed for
cash before the sixth anniversary of their purchase, a CDSC may be deducted from
the redemption proceeds. That sales charge will not apply to shares purchased by
the reinvestment of dividends or capital gains distributions. The charge will be
assessed  on the  lesser  of the net  asset  value of the  shares at the time of
redemption or the original purchase price. The CDSC is not imposed on the amount
of your account  value  represented  by the increase in net asset value over the
initial purchase price (including increases due to the reinvestment of dividends
and  capital  gains  distributions).  The  Class B CDSC  is paid to Lord  Abbett
Distributor  to compensate it for its services  rendered in connection  with the
distribution  of Class B shares,  including  the payment and  financing of sales
commissions. See "Class B Rule 12b-1 Plan" below.

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 until the sixth  anniversary  of
their  purchase  or later,  and (3)  shares  held the  longest  before the sixth
anniversary of their purchase.

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
Which the Purchase            Sales Charge on
Order Was Accepted            Redemptions
                              (As % of Amount
On      Before                Subject to Charge)
        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

In the table,  an  "anniversary"  is the 365th day subsequent to a purchase or a
prior  anniversary.  All  purchases  are  considered  to have  been  made on the
business  day the  purchase was made.  See "Buying  Shares  Through Your Dealer"
above.


<PAGE>


If  Class  B  shares  are  exchanged   into  the  same  class  of  another  Lord
Abbett-sponsored  fund and the new shares  are  subsequently  redeemed  for cash
before the sixth anniversary of the original purchase,  the CDSC will be payable
on the new shares on the basis of the time elapsed  from the original  purchase.
The Fund will collect such a charge for other Lord  Abbett-sponsored  funds in a
similar situation.

WAIVER OF CLASS B SALES CHARGES.  The Class B CDSC will not be applied to shares
purchased in certain types of transactions  nor will it apply to shares redeemed
in certain circumstances as described below.

The Class B CDSC will be waived for redemptions of shares (i) in connection with
the  Systematic  Withdrawal  Plan and  Div-Move  services,  as described in more
detail under  "Shareholder  Services" below; (ii) by Retirement Plans due to any
benefit payment such as Plan loans, hardship withdrawals,  death,  retirement or
separation from service with respect to plan participants or the distribution of
any excess contributions,  and (iii) in connection with mandatory  distributions
under 403(b) plans and individual retirement accounts.

Class B Rule 12b-1  Plan.  The Fund has  adopted a Class B share Rule 12b-1 plan
(the "B Plan") under which the Fund  periodically  pays Lord Abbett  Distributor
(i) an annual  service fee of 0.25 of 1% of the average daily net asset value of
the  Class B shares  and (ii) an  annual  distribution  fee of 0.75 of 1% of the
average  daily net asset  value of the Class B shares that are  outstanding  for
less than 8 years.

Lord  Abbett   Distributor  uses  the  service  fee  to  compensate   authorized
institutions  for  providing  personal  services for accounts  that hold Class B
shares. Those services are primarily similar to those provided under the A Plan,
described above.

Lord Abbett  Distributor  pays an up-front  payment to  authorized  institutions
totalling 4%,  consisting of 0.25% for service and 3.75% for a sales  commission
as described below.

Lord Abbett Distributor pays the 0.25% service fee to authorized institutions in
advance for the first year after Class B shares have been sold by the authorized
institutions.  After  the  shares  have  been  held  for  a  year,  Lord  Abbett
Distributor pays the service fee on a quarterly basis.  Lord Abbett  Distributor
is entitled to retain such service fee payable  under the B Plan with respect to
accounts  for which there is no  authorized  institution  of record or for which
such authorized  institution  did not qualify.  Although not obligated to do so,
Lord Abbett  Distributor  may waive  receipt from the Fund of part or all of the
service fee payments.

The  0.75%  annual  distribution  fee is  paid  to Lord  Abbett  Distributor  to
compensate it for its services  rendered in connection with the  distribution of
Class B shares,  including  the  payment  and  financing  of sales  commissions.
Although Class B shares are sold without a front-end  sales charge,  Lord Abbett
Distributor pays authorized institutions responsible for sales of Class B shares
a sales  commission of 3.75% of the purchase price.  This payment is made at the
time of sale from Lord Abbett Distributor's own resources.  Lord Abbett has made
arrangements to finance these commission  payments,  which arrangements  include
non-recourse  assignments by Lord Abbett  Distributor to the financing  party of
such distribution and CDSC payments which are made to Lord Abbett Distributor by
shareholders who redeem their Class B shares within six years of their purchase.

The  distribution  fee and CDSC payments  described above allow investors to buy
Class B shares  without a front-end  sales  charge  while  allowing  Lord Abbett
Distributor to compensate authorized  institutions that sell Class B shares. The
CDSC is intended to supplement Lord Abbett Distributor's


<PAGE>


reimbursement  for the  commission  payments it has made with respect to Class B
shares and its related  distribution  and financing  costs. The distribution fee
payments are at a fixed rate and the CDSC payments are of a nature that,  during
any year,  both forms of payment may not be sufficient to reimburse  Lord Abbett
Distributor  for its actual  expenses.  The Fund is not liable for any  expenses
incurred  by  Lord  Abbett  Distributor  in  excess  of (i) the  amount  of such
distribution  fee  payments to be received by Lord Abbett  Distributor  and (ii)
unreimbursed  distribution  expenses  of Lord Abbett  Distributor  incurred in a
prior plan year,  subject to the right of the Board of Directors or shareholders
to  terminate  the B Plan.  Over the long term,  the  expenses  incurred by Lord
Abbett  Distributor are likely to be greater than such distribution fee and CDSC
payments.  Nevertheless, there exists a possibility that for a short-term period
Lord  Abbett   Distributor   may  not  have   sufficient   expenses  to  warrant
reimbursement by receipt of such distribution fee payments. Although Lord Abbett
Distributor  undertakes  not to make a profit  under  the B Plan,  the B Plan is
considered a compensation  plan (i.e.,  distribution fees are paid regardless of
expenses  incurred) in order to avoid the possibility of Lord Abbett Distributor
not being able to  receive  distribution  fees  because  of a  temporary  timing
difference between its incurring expenses and receipt of such distribution fees.

AUTOMATIC  CONVERSION  OF CLASS B  SHARES.  On the  eighth  anniversary  of your
purchase of Class B shares,  those shares will automatically  convert to Class A
shares.  This  conversion  relieves  Class B  shareholders  of the higher annual
distribution  fee that  applies  to Class B shares  under the Class B Rule 12b-1
Plan.  The  conversion  is based on the  relative  net  asset  values of the two
classes,  and no sales  charge or other  charge is imposed.  When Class B shares
convert,  any other Class B shares that were  acquired  by the  reinvestment  of
dividends  and  distributions  will also convert to Class A shares on a pro rata
basis.  The conversion  feature is subject to the continued  availability  of an
opinion of counsel or of a tax ruling  described in "Purchases,  Redemptions and
Shareholder Services" in the Statement of Additional Information.

BUYING  CLASS C SHARES.  Class C shares  are sold at net  asset  value per share
without an initial  sales  charge.  However,  if Class C shares are redeemed for
cash  before  the  first  anniversary  of their  purchase,  a CDSC of 1% will be
deducted from the redemption proceeds.  That reimbursement charge will not apply
to  shares   purchased  by  the  reinvestment  of  dividends  or  capital  gains
distributions.  The charge will be assessed on the lesser of the net asset value
of the shares at the time of redemption or the original purchase price. The CDSC
is not imposed on the amount of your account value  represented  by the increase
in net asset value over the initial purchase price  (including  increases due to
the reinvestment of dividends and capital gains distributions). The Class C CDSC
is paid to the Fund to  reimburse  it, in whole or in part,  for the service and
distribution fee payments made by the Fund at the time such shares were sold, as
described below.

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 for one year or more and (3) shares
held the longest  before the first  anniversary  of their  purchase.  If Class C
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.  The Fund will  collect  such a charge  for other  Lord
Abbett-sponsored funds in a similar situation.

CLASS C RULE 12B-1  PLAN.  The Fund has  adopted a Class C share Rule 12b-1 Plan
(the "C Plan") under which  (except as to certain  accounts  for which  tracking
data is not available) the Fund pays authorized institutions through Lord Abbett
Distributor  (1) a service  fee and a  distribution  fee, at the time shares are
sold, not to exceed 0.25 and 0.75 of 1%, respectively, of the net asset value of
such shares and (2) at each quarter-end  after the first anniversary of the sale
of shares, fees for services and distribution at annual rates not to exceed 0.25
and 0.75 of 1%, respectively,


<PAGE>


of the average annual net asset value of such shares outstanding  (payments with
respect to shares not outstanding during the full quarter to be prorated). These
service and distribution  fees are for purposes similar to those mentioned above
with  respect  to the A Plan.  Sales in clause  (1)  exclude  shares  issued for
reinvested  dividends and  distributions,  and shares  outstanding in clause (2)
include shares issued for reinvested dividends and distributions after the first
anniversary of their issuance.

6    SHAREHOLDER SERVICES

We offer the following shareholder services:

Telephone  Exchange  Privilege:  Shares of any class may be exchanged  without a
service   charge:   (a)  for  shares  of  the  same  class  of  any  other  Lord
Abbett-sponsored  fund  except  for (i)  LAEF,  LASF and  LARF and (ii)  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 and (b) for shares of any
authorized  institution's  affiliated  money market fund  satisfying Lord Abbett
Distributor  as  to  certain  omnibus  account  and  other  criteria  (together,
"Eligible Funds").

You or YOUR REPRESENTATIVE  WITH PROPER  IDENTIFICATION can instruct the Fund to
exchange uncertificated shares of a class (held by

the transfer agent) by telephone.  Shareholders  have this privilege unless they
refuse it in  writing.  The Fund will not be liable for  following  instructions
communicated  by telephone  that it  reasonably  believes to be genuine and will
employ reasonable  procedures to confirm that instructions received are genuine,
including   requesting  proper   identification   and  recording  all  telephone
exchanges.   Instructions   must  be   received  by  the  Fund  in  Kansas  City
(800-821-5129)  prior to the close of the NYSE to obtain  each  fund's net asset
value per class  share on that day.  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 terminate or limit the privilege of
any shareholder who makes frequent exchanges.  The Fund can revoke the privilege
for all  shareholders  upon 60 days' prior written notice.  A prospectus for the
other Lord  Abbett-sponsored  fund  selected by you should be obtained  and read
before an exchange. Exercise of the Exchange Privilege will be treated as a sale
for federal income tax purposes and, depending on the  circumstances,  a capital
gain or loss may be recognized.

SYSTEMATIC WITHDRAWAL PLAN ("SWP"):  Except for Retirement Plans for which there
is no such minimum,  if the maximum offering price value of your  uncertificated
shares is at least $10,000, you may have periodic cash withdrawals automatically
paid to you in either fixed or variable amounts. With respect to Class B shares,
the CDSC  will be  waived on  redemptions  of up to 12% per year of  either  the
current  net  asset  value of your  account  or your  original  purchase  price,
whichever  is  higher.  For  Class B shares  (over  12% per  year) and C shares,
redemption  proceeds due to a SWP will be derived from the following  sources in
the order listed:  (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); and (3) shares held the longest before the sixth anniversary of their
purchase (Class B) or before the first  anniversary of their purchase (Class C).
Shareholders  should be careful in establishing a SWP,  especially to the extent
that such a withdrawal  exceeds the annual  total  return for a class,  in which
case, the shareholder's  original  principal will be invaded and, over time, may
be depleted.

DIV-MOVE:  You can  invest  the  dividends  paid on your  account  ($50  minimum
investment) into an existing account within the same class in any 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. Such  dividends are not subject to a CDSC. You should
read the prospectus of the other fund before investing.


<PAGE>


INVEST-A-MATIC:  You can make fixed,  periodic investments ($250 initial and $50
subsequent  minimum  investment) into the Fund and/or any Eligible Fund by means
of automatic  money transfers from your bank checking  account.  You should read
the prospectus of the other fund before investing.

RETIREMENT  PLANS:  Lord Abbett makes  available the  retirement  plan forms and
custodial   agreements  for  IRAs  (Individual   Retirement  Accounts  including
Simplified  Employee  Pensions),  403(b)  plans and pension  and  profit-sharing
plans, including 401(k) plans.

HOUSEHOLDING:  A single copy of an annual or semi-annual  report will be sent to
an address to which more than one  registered  shareholder  of the Fund with the
same last name has indicated mail is to be delivered,  unless additional reports
are specifically requested in writing or by telephone.

All  correspondence  should be directed to Lord Abbett  Developing  Growth Fund,
Inc. (P.O. Box 419100, Kansas City, Missouri 64141; 800-821-5129).

7    OUR MANAGEMENT

Our business is managed by our officers on a day-to-day  basis under the overall
direction  of our Board of Directors  with the advice of Lord Abbett.  We employ
Lord Abbett as  investment  manager  pursuant to a  Management  Agreement.  Lord
Abbett has been an investment  manager for over 65 years and  currently  manages
over $19 billion in a family of mutual funds and other advisory accounts.  Under
the Management  Agreement,  Lord Abbett provides us with  investment  management
services  and  executive  and  other  personnel,  pays the  remuneration  of our
officers and our directors affiliated with Lord Abbett,  provides us with office
space and pays for ordinary and necessary office and clerical  expenses relating
to research, statistical work and supervision of our portfolio and certain other
costs.   Lord  Abbett   provides   similar   services   to  twelve   other  Lord
Abbett-sponsored  funds having  various  investment  objectives and also advises
other investment clients.  Stephen J. McGruder,  Executive Vice President of the
Fund,  serves as portfolio  manager for the Fund and has done so since he joined
Lord Abbett in May 1995.  Prior to joining Lord Abbett,  Mr. McGruder had served
as Vice President of Wafra  Investments  Advisory  Group,  a private  investment
company, since October 1988. Mr. McGruder has over 25 years of experience in the
investment business.

Under  the  Management  Agreement,  we pay Lord  Abbett a  monthly  fee based on
average  daily net assets for each month.  For the fiscal year ended January 31,
1996, the effective fee paid to Lord Abbett as a percentage of average daily net
assets was at the annual rate of 0.64%.  In  addition,  we pay all  expenses not
expressly assumed by Lord Abbett. Our Class A share ratio of expenses, including
management  fee  expenses,  to average net assets for the year ended January 31,
1996  was  1.03%.  The  Fund.  The  Fund is a  diversified  open-end  management
investment  company  incorporated  under  Maryland law on August 28,  1978.  Our
predecessor  corporation  was  organized on July 11, 1973.  Its Class A, B and C
shares have equal rights as to voting, dividends,  assets and liquidation except
for differences resulting from certain class-specific expenses.

Dividends  from net  investment  income  may be taken in cash or  reinvested  in
additional shares at net asset value without a sales charge.

If you  elect a cash  payment  (i) a  check  will  be  mailed  to you as soon as
possible after the monthly  reinvestment  date or (ii) if you arrange for direct
deposit, your payment will be wired directly to your bank account within one day
after the date on which the dividend is paid.

A long-term  capital gains  distribution is made when we have net profits during
the year from sales of  securities  which we have held more than one year. If we
realize net short-term capital gains, they also will be distributed. Any capital
gains  distribution will be paid in December and/or February.  You may take them
in cash or


<PAGE>


reinvest them in additional shares at net asset value without a sales charge.

Dividends and distributions  may be paid in December and/or February.  Dividends
and  distributions  declared  in  October,  November  or December of any year to
shareholders  of record as of a date in such a month 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.

We intend to continue to meet the  requirements  of Subchapter M of the Internal
Revenue Code. We will try to distribute to  shareholders  all our net investment
income and net realized  capital gains, so as to avoid the necessity of the Fund
paying  federal income tax.  Shareholders,  however,  must report  dividends and
capital gains  distributions as taxable income.  Distributions  derived from net
long-term  capital  gains which are  designated  by the Fund as  "capital  gains
dividends" will be taxable to shareholders as long-term  capital gains,  whether
received  in cash or  shares,  regardless  of how long a  taxpayer  has held the
shares.  Under current law, net  long-term  capital gains are taxed at the rates
applicable  to  ordinary  income,  except that the  maximum  rate for  long-term
capital gains for individuals is 28%. Legislation pending as of the date of this
Prospectus  would have the effect of  reducing  the  federal  income tax rate on
capital gains.

Shareholders may be subject to a $50 penalty under the Internal Revenue Code and
we may be required to withhold and remit to the U.S. Treasury a portion (31%) of
any redemption  proceeds  (including the value of shares  exchanged into another
Lord Abbett-sponsored fund), and of any dividend or distribution on any account,
where  the  payee   (shareholder)   failed   to   provide  a  correct   taxpayer
identification number or to make certain required certifications.

We will  inform  shareholders  of the federal  tax status of each  dividend  and
distribution after

the end of each calendar  year.  Shareholders  should consult their tax advisers
concerning  applicable  state and local taxes as well as the tax consequences of
gains or losses from the redemption or exchange of our shares.

9    REDEMPTIONS

To obtain the proceeds of an  expedited  redemption  of $50,000 or less,  you or
your representative with proper  identification can telephone the Fund. The Fund
will not be liable for following instructions  communicated by telephone that it
reasonably  believes  to be genuine  and will employ  reasonable  procedures  to
confirm that  instructions  received are genuine,  including  requesting  proper
identification,  recording  all telephone  redemptions  and mailing the proceeds
only  to  the  named  shareholder  at  the  address  appearing  on  the  account
registration.

If you do not qualify for the  expedited  procedures  described  above to redeem
shares directly,  send your request to Lord Abbett  Developing Growth Fund, Inc.
(P.O. Box 419100,  Kansas City,  Missouri 64141) with signature(s) and any legal
capacity of the signer(s)  guaranteed by an eligible guarantor,  accom-panied by
any certificates for shares to be redeemed and other required documentation.  We
will  make  payment  of the net  asset  value  of the  shares  on the  date  the
redemption order was received in proper form.  Payment will be made within three
days.  The Fund may suspend  the right to redeem  shares for not more than seven
days (or longer under unusual circumstances as permitted by Federal law). If you
have  purchased  Fund  shares  by check  and  subsequently  submit a  redemption
request, redemption proceeds will be paid upon clearance of your purchase check,
which may take up to 15 days.  To avoid delays you may arrange for the bank upon
which a check was drawn to  communicate  to the Fund that the check has cleared.
Shares  also  may be  redeemed  by the  Fund at net  asset  value  through  your
securities dealer who, as an unaffiliated  dealer, may charge you a fee. If your
dealer receives your order prior to the close of the NYSE and communicates it to
Lord Abbett, as our agent, prior to the close of Lord Abbett's business day, you
will receive the net asset value of the shares being redeemed as of the close of
the NYSE on that day. If the dealer does


<PAGE>


not  communicate  such an order to Lord Abbett until the next  business day, you
will  receive  the net  asset  value as of the  close  of the NYSE on that  next
business day.

Shareholders  who have redeemed  their shares have a one-time  right to reinvest
into another  account having the identical  registration  in any of the Eligible
Funds,  at the then applicable net asset value of the shares being purchased (i)
without the payment of a sales charge or (ii) with reimbursement for the payment
of any CDSC. Such reinvestment must be made within 60 days of the redemption and
is limited to no more than the dollar amount of the redemption proceeds.

Under certain  circumstances  and subject to prior written notice,  our Board of
Directors may authorize  redemption of all of the shares in any account in which
there are fewer than 25 shares.

Tax-qualified   Plans:  For  redemptions  of  $50,000  or  less,  follow  normal
redemption  procedures.  Redemptions  over  $50,000  must be in writing from the
employer,  broker or plan  administrator  stating the reason for the redemption.
The  reason  for the  redemption  must be  received  by the Fund  prior  to,  or
concurrent with, the redemption request.

10   PERFORMANCE

The Fund ended  fiscal  1996 on January  31, with a per share net asset value of
$11.49  versus  $6.71 one year ago.  The  latter  figure has been  adjusted  for
capital  gains  distributions  totaling  $2.865  per share  paid over the Fund's
fiscal  year.  The Board of  Directors  subsequently  declared  a capital  gains
distribution  of $.16 per share which was paid on February 21 to shareholders of
record on February  14,  1996.  The Fund's total return over the fiscal year was
50.2%.

1995 was a superior year for small company growth stocks; and the Fund performed
exceptionally  well.  We  increased  the number of  holdings  by adding  over 25
companies to the Fund's portfolio,  with particular emphasis on small and highly
specialized, niche companies. This strategy benefited the Fund's performance, as
did our holdings in technology  stocks.  During the second half of 1995, we were
net  sellers of  technology  and  captured  many of the  profits  made from this
sector.  As technology  stock prices  corrected in December,  the Fund used this
opportunity to purchase more niche companies at attractive prices.

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.  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, or back-end) would be reduced if such sales charge were used.  Quotations
of 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  discussion of the
computation of the Fund's total return.

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.


<PAGE>


Comparison of changes in value of a $10,000  investment in Class A shares of the
Fund, assuming reinvestment of all dividends and distributions,  in the Fund and
the Russell 2000 Index.

[CAPTION]
<TABLE>

                 FUND           FUND AT           RUSSELL
                AT NET          MAXIMUM            2000
DATE         ASSET  VALUE    OFFERING PRICE(1)     INDEX(2)
- ----         ------------    --------------       -------
<S>           <C>            <C>                <C>
1/31/86        $10,000        $ 9,428             $10,000
1/31/87         11,021         10,391              11,607
1/31/88          9,629          9,078               9,902
1/31/89         10,651         10,042              12,391
1/31/90         10,611         10,005              12,586
1/31/91         12,166         11,470              12,109
1/31/92         17,218         16,234              17,532
1/31/93         16,821         15,859              19,853
1/31/94         19,581         18,461              23,543
1/31/95         19,043         17,955              22,129
1/31/96         28,606         26,971              28,754
<FN>

(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 the
Russell 2000 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, 1996 using
the SEC-required uniform method to compute such return.

</FN>
</TABLE>

<PAGE>



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.

<PAGE>
LORD ABBETT


Statement of Additional Information                              July 15, 1996


                                   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 July 15, 1996.

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. Our authorized  capital
stock consisting of stock three classes (A, B and C), $0.01 par value. The Board
of Directors  will allocate these  authorized  shares of capital stock among the
classes  from  time to time.  Prior to July 12,  1996,  we had only one class of
shares,  which  class is now  designated  Class A.  The  Class B shares  will be
offered to the public for the first time on or about August 1, 1996.  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.

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
principal distributing contracts 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                                        4

3.       Investment Advisory and Other Services                        7

4.       Portfolio Transactions                                        8

5.       Purchases, Redemptions and Shareholder Services               9

6.       Past Performance                                              15

7.       Taxes                                                         15

8.       Information About the Fund                                    16

9.       Financial Statements                                          17

<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  policie, 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 5% of its gross  assets  taken at cost or market
value, whichever is lower at the time of borrowing, 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 
                                       2

<PAGE>

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.

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 year ended  January 31, 1996,  our portfolio
turnover rate was 50.12%, versus 17.57% for the prior 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.
                                       3

<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.

                                       2.
                             Directors and Officers

The following  director is a partner of Lord, Abbett & Co. ("Lord Abbett"),  The
General Motors Building, 767 Fifth Avenue, New York, New York 10153-0203. He has
been  associated  with Lord  Abbett  for over five  years and is also an officer
and/or director or trustee of the twelve other Lord  Abbett-sponsored  funds. He
is an  "interested  person"  as 
                                       4

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 51, Chairman and President

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

E. Thayer Bigelow
Time Warner Cable
300 First Stamford Place
Stamford, Connecticut

President and Chief  Executive  Officer of Time Warner Cable  Programming,  Inc.
Formerly President and Chief Operating Officer of Home Box Office, Inc. Age 54.

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 65.

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

Retired. Former Chairman of Independent Election Corporation of America, a proxy
tabulating firm. Age 70.

C. Alan MacDonald
The Marketing Partnership, Inc.
27 Signal Road
Stamford, Connecticut

General  Partner,  The  Marketing  Partnership,  Inc., a full service  marketing
consulting  firm.  Formerly  Chairman  and Chief  Executive  Officer  of Lincoln
Snacks,  Inc.,  manufacturer  of  branded  snack  foods  (1992-1994).   Formerly
President and Chief  Executive  Officer of Nestle Foods Corp, and prior to that,
President and Chief Executive Officer of Stouffer Foods Corp., both subsidiaries
of Nestle SA,  Switzerland.  Currently serves as Director of Den West Restaurant
Co., J. B. Williams, and Fountainhead Water Company. Age 63.

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

President and Chief Executive Officer of Rochester Button Company.  Age 68.

Thomas J. Neff
Spencer Stuart & Associates
277 Park Avenue
New York, New York
                                       5

<PAGE>

President of Spencer Stuart & Associates,  an executive search  consulting firm.
Age 58.

The second column of the following table sets forth the compensation accrued for
the Fund's outside directors. The third and fourth columns set forth information
with respect to the retirement plan for outside directors maintained by the Lord
Abbett-sponsored  funds.  The fifth  column  sets  forth the total  compensation
payable by such funds to the  outside  directors.  The first four  columns  give
information  for the Fund's fiscal year ended January 31, 1996; the fifth column
gives  information for the year ended December 31, 1995. No director of the Fund
associated  with Lord  Abbett or Lord Abbett  Distributor  and no officer of the
Fund  received  any  compensation  from the Fund for  acting  as a  director  or
officer.
<TABLE>
<CAPTION>

                For the Fiscal Year Ended January 31, 1996
- --------------------------------------------------------------------------------------
         (1)                  (2)                  (3)                    (4)                      (5)
                                               Pension or             Estimated Annual       For Year Ended
                                               Retirement Benefits    Benefits Upon          December 31, 1995
                                               Accrued as Expenses    Retirement Accrued     Total Compensation
                                               by the Fund and        by the Fund and        Accrued by the Fund and
                           Aggregate           Twelve Other Lord      Twelve Other Lord      Twelve Other Lord
                           Compensation        Abbett-sponsored       Abbett-sponsored       Abbett-sponsored
Name of Director           from the Fund1      Funds2                 Funds2                 Funds3
- ----------------           --------------      -------------------    ------------------     ------------------------  
<S>                        <C>                 <C>                    <C>                    <C>  

E. Thayer Bigelow          $485                $9,772                 $33,600                $41,700

Stewart S. Dixon           $463                $22,472                $33,600                $42,000

John C. Jansing            $500                $28,480                $33,600                $42,960

C. Alan MacDonald          $471                $27,435                $33,600                $42,750

Hansel B. Millican, Jr.    $502                $24,707                $33,600                $43,000

Thomas J. Neff             $484                $16,126                $33,600                $42,000

<FN>

1. Outside  directors' fees,  including  attendance fees for board and committee
   meetings,  are allocated among all Lord  Abbett-sponsored  funds based on net
   assets of each fund. A portion of the fees payable by the Fund to its outside
   directors are being deferred under a plan that deems the deferred  amounts to
   be invested in shares of the Fund for later  distribution  to the  directors.
   The total amount  accrued under the plan for each outside  director since the
   beginning of his tenure with the Fund,  including  dividends  reinvested  and
   changes in net asset  value  applicable  to such deemed  investments  were as
   follows as of January 31, 1996: Mr. Bigelow,  $741; Mr. Dixon,  $39,202;  Mr.
   Jansing,  $39,696 ; Mr.  MacDonald,  $13,861;  Mr. Millican,  $40,751 and Mr.
   Neff, $41,016 .

2. The retirement plan of the Lord Abbett-sponsored  funds provides that outside
   directors  will receive an annual  retirement  benefit  equal to 80% of their
   final annual retainer  following  retirement at or after age 72 with at least
   10 years of service.  The plan also provides for a reduced benefit upon early
   retirement under certain  circumstances,  a pre-retirement  death benefit and
   actuarially reduced  joint-and-survivor  spousal benefits. The amounts stated
   would be payable  annually under such retirement plan if the director were to
   retire at age 72 and the annual retainer  payable by such funds were the same
   as it is today. The amounts accrued in column 3 by the Lord  Abbett-sponsored
   funds  during the fiscal  year ended  January  31,  1996 are used to fund the
   retirement benefits in column 4.

3. This column  shows  aggregate  compensation,  including  director's  fees and
   attendance fees for board and committee meetings,  of a nature referred to in
   the first sentence of footnote one accrued by the Lord Abbett-sponsored funds
   during the year ended December 31, 1995.
</FN>
</TABLE>

Except where indicated,  the following  executive officers of the Fund have been
associated  with Lord  Abbett for over five  years.  Of the  following,  Messrs.
Allen, Carper,  Cutler,  Henderson,  Morris,  Nordberg and Walsh are partners of
Lord Abbett;  the others are  employees:  Stephen J. McGruder age 53,  Executive
Vice President, Kenneth B. Cutler, age 64, Vice President and Secretary; Stephen
I. Allen, age 43; Daniel E. Carper,  age 44; Robert G. Morris,  age 51, E. Wayne
Nordberg,  age 58; John J. Gargana,  Jr., age 65; Paul A. Hilstad,  age 53 (with
Lord Abbett since 1995;  formerly  
                                       6

<PAGE>

Senior Vice  President  and General  Counsel of American  Capital  Management  &
Research,  Inc.); Thomas F. Konop, age 54; Victor W. Pizzolato,  age 63; John J.
Walsh, age 60, Vice Presidents; and Keith F. O'Connor, age 41, Treasurer.

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 July 1, 1996, our officers and directors,  as a group,  owned less than 1%
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.  The eight general partners of Lord Abbett, all of whom are
officers and/or directors of the Fund, are: Stephen I. Allen,  Daniel E. Carper,
Kenneth B. Cutler,  Robert S. Dow,  Thomas S.  Henderson,  Robert G. Morris,  E.
Wayne  Nordberg  and John J. Walsh.  The address of each  partner is The General
Motors Building, 767 Fifth Avenue, New York, New York 10153-0203.

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 Classes A, B and C based on the classes' proportionate shares of
such average daily net assets. For the fiscal years ended January 31, 1996, 1995
and 1994,  the  management  fees paid to Lord  Abbett  amounted  to  $1,098,965,
$897,585 and $952,381, 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.

We have  agreed  with  the  State of  California  to  limit  operating  expenses
(including management fees but excluding taxes, interest, extraordinary expenses
and  brokerage  commissions)  to 2 1/2%  of  average  annual  net  assets  up to
$30,000,000, 2% of the next $70,000,000 of such assets and 1 1/2% of such assets
in  excess  of  $100,000,000.  The  expense  limitation  is a  condition  on the
registration  of investment  company shares for sale in the State and applies so
long as our shares are registered for sale in that State.

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.
                                       7

<PAGE>

                                       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,  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.

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 form 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 
                                       8

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, 1996,  1995 and 1994,  we paid total
commissions  to  independent   dealers  of  $981,015,   $399,634  and  $647,440,
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.

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,  Presidents' Day, Good Friday,  Memorial Day,  Independence Day, Labor Day,
Thanksgiving and Christmas.

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

The  maximum  offering  price of our  Class A shares  on  January  31,  1996 was
computed as follows:

 Net asset value per share (net assets divided by
 shares outstanding)..............................................  ......$11.49

 Maximum offering price per share (net asset value
 divided by .9425)........................................................$12.19

The Fund has entered into a distribution  agreement with Lord Abbett Distributor
LLC, a New York  limited  liability  company  ("Lord  Abbett  Distributor")  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.
                                       9
<PAGE>

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:
<TABLE>
<CAPTION>

                                                        Year Ended January 31
                                                        ---------------------                                      
                                               1996           1995              1994
                                               ----           ----              ----
<S>                                         <C>             <C>                 <C>   

Gross sales charge                          $747,825        $109,370            $115,031

Amount allowed    to dealers                $679,143        $ 92,501            $ 99,284
                                            --------         --------           --------

Net commissions
   received by Lord Abbett                   $68,682         $16,869            $ 15,747
                                              ======          ======             =======
</TABLE>

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.

CLASS A, B AND C 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 three  Fund  Classes:  the "A Plan",  the "B Plan" and the "C 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 Class shares,  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,  the Fund  accrued or paid through Lord
Abbett to authorized institutions $304,960 under the A Plan. Both the B Plan and
the C Plan were adopted by the Fund  subsequent  to its last fiscal  year.  Lord
Abbett used all amounts  received  under the A Plan for  payments to dealers for
(i) providing continuous services to the Class A 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 Class A 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.  The charges described below apply upon early
redemption  of  shares,  and  consist  of a  Contingent  Deferred  Sales  charge
("CDSC"),  regardless  of class,  (i) will not apply to shares  purchased by the
reinvestment of dividends or capital gains distributions;  (ii) 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 (iii) are not  imposed  on the amount of your
account  
                                       10

value  represented  by the increase in net asset value over the initial
purchase price  (including  increases due to the  reinvestment  of dividends and
capital gains distributions).

CLASS A SHARES.  As  stated  in the  Prospectus,  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,  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  service to the Fund in connection with the sale of Class B
shares.

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 contingent  deferred sales charge will depend on the number of
years since you invested and the dollar amount being redeemed,  according to the
following schedule:

                                              Contingent Deferred Sales Charge
Anniversary of the Day on                     on Redemptions (As % of Amount
Which the Purchase Order Was Accepted         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 received.

Class C Shares. As stated in the Prospectus,  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.  Each 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.  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  service 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.

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) amounts derived
from  increases in the value of the account above the total cost of shares being
redeemed due to increases in net asset value,  (ii) 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 (iii) 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.

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 to invest
$100,000  or more over a 13-month  period as  described  in the  Prospectus,  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  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,  and (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.  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.

Our  Class A  shares  also may be  purchased  at net  asset  value,  subject  to
appropriate documentation, through a securities dealer where the amount invested
represents  redemption  proceeds from shares ("Redeemed Shares") of a registered
open-end management investment company not distributed or managed by Lord Abbett
(other than a money market fund),  if such  redemption has occurred no more than
60 days prior to the purchase of our shares,  the Redeemed  Shares were held for
at least six months  prior to  redemption  and the proceeds of  redemption  were
maintained in cash or a money market fund prior to purchase.  Purchasers  should
consider the impact, if any, of contingent deferred sales charges in determining
whether to redeem shares for subsequent  investment in our Class A shares.  Lord
Abbett may suspend, change or terminate this purchase option at any time.

Our Class A shares may be issued at net asset value in exchange  for the assets,
subject  to  possible  tax  adjustment,  of a  personal  holding  company  or an
investment  company.  There are economies of selling  efforts and  sales-related
expenses with respect to offers to these investors and those referred to above.

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 a
SWP for Class B shares,  the CDSC will be waived on redemptions of up to 12% per
year of either the  current  net asset  value of your  account or your  original
purchase price,  whichever is higher.  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  and  custodial  agreements  for  IRAs  (Individual
Retirement Accounts,  including Simplified Employee Pensions),  403(b) plans and
qualified pension and  profit-sharing  plans,  including 401(k) plans. The forms
name  Investors  Fiduciary  Trust  Company as  custodian  and  contain  specific
information  about the  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.

                                       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 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(s) 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).  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.  Prior to July 12,
1996, the Fund had only one class of shares, which class is now designated Class
A.

Using  the  computation  method  described  above,  the  Fund's  average  annual
compounded  rates of total  return for the last one,  five and ten fiscal  years
ending on January  31, 1996 are as  follows:  41.70%,  17.25% and 10.43% for the
Fund's Class A shares, respectively.

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  or sale is
made.  Any  gain or loss  generally  will be  taxable  for  federal  income  tax
purposes.  Any loss realized on the sale, or redemption 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.

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.  Proposed  regulations
would allow the Fund to avoid the Fund level tax and interest  charges on excess
distributions  and  dispositions  by electing to "mark to market"  annually  any
stock of passive foreign investment  companies held by the Fund. Gain recognized
pursuant to such election would  generally be treated as ordinary income subject
to the  distribution  requirements  discussed in the Prospectus.  It is unclear,
however,  whether this option will be available under any final regulations that
might be  adopted.  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.

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.

                                       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, 1996 and the
report  of  Deloitte  & Touche  LLP,  independent  auditors,  on such  financial
statements  contained in the 1996 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.  Prior to July 12, 1996,  the
Fund had only one class of shares, which class is now designated Class A.


<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, 1996.

                  Part      B-  Statement  of Net  Assets at January  31,  1996.
                            Statement of  Operations  for the year ended January
                            31,  1996.  Statements  of Changes in Net Assets for
                            the years ended January 31, 1996 and 1995. Financial
                            Highlights  for the five  years  ended  January  31,
                            1996.

         (b)      Exhibits -

                  99.B1  Articles of Amendment and articles  Supplementing* 
                  99.B6  Form of Distribution  Agreement** 
                  99.B11 Consent of Deloitte & Touche*  
                  99.B15a Forms of Rule  12b-1  Plans  for Class A and
                           Class C shares**  
                  99.B15b Form of Rule 12b-1 Plan for Class B shares**
                  99.B18  Form of  Plan  entered  into  by  Registrant pursuant
                          to Rule 18f-3.***

*    Filed herewith.
**   The form of this document is  incorporated  by reference to  Post-Effective
     Amendment No. 41 to the Registration  Statement on Form N-1A of Lord Abbett
     Bond-Debenture   Fund,   Inc.   (File  No.   811-2145).   The  Lord  Abbett
     Bond-Debenture  Fund document is substantially  identical to that form used
     for the Registrant  except for the name of the Registrant and/or its Series
     and perhaps minor differences.
***  Incorporated  by  Reference  to  Post-Effective  Amendment  No.  40 to  the
     Registration  Statement  on Form N-1A of Lord Abbett  Bond-Debenture  Fund,
     Inc. (File No. 811-2145)

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

                  None.

Item 26.          Number of Record Holders of Securities

                  At June 28, 1995 - 18,952

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,

                                        1

<PAGE>



         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 5,100 private
          accounts. Other

                                        2

<PAGE>



         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 U.S. Government Securities 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
                  Kenneth B. Cutler                  Vice President & Secretary
                  Stephen I. Allen                   Vice President
                  Daniel E. Carper                   Vice President
                  Thomas S. Henderson                Vice President
                  Robert G. Morris                   Vice President
                  E. Wayne Nordberg                  Vice President
                  John J. Walsh                      Vice President

         (1)      Each of the above has a principal business address:
                  767 Fifth Avenue, New York, NY 10153

         (c)      Not applicable


                                        3

<PAGE>



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).

                                        4

<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
10th day of July 1996.

                                  LORD ABBETT DEVELOPING GROWTH FUND, INC.


                                  By  /S/ ROBERT S. DOW
                                     Robert S. Dow, Chairman

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.



 
NAME                         TITLE                               DATE
- -----                        -----                               ----
                            Chairman, Prsident
/s/ Robert S. Dow          & Director                           July 10, 1996


/s/ John J. Gargana, Jr.    Vice President &                    July 10, 1996
                            Chief Financial Officer
                       
/s/ E. Thayer Bigelow       Director                            July 10, 1996


/s/ Stewart S. Dixon        Director                            July 10, 1996


E. Wayne Nordberg           Director


/s/ John C. Jansing         Director                            July 10, 1996


/s/ C. Alan MacDonald       Director                            July 10, 1996


/s/ Hansel B. Millican, Jr. Director                            July 10, 1996
 

/s/ Thomas J. Neff          Director                            July 10, 1996




<PAGE>
 
                    LORD ABBETT DEVELOPING GROWTH FUND, INC.

                             ARTICLES OF AMENDMENT


          LORD ABBETT DEVELOPING GROWTH FUND, INC. , a Maryland corporation
(hereinafter called the "Corporation"), hereby certifies to the State Department
of Assessments and Taxation of Maryland, that:

          FIRST:  The Articles of Incorporation of the Corporation (hereinafter
called the "Articles"), as heretofore amended, are hereby further amended by:

     (a)  Striking out Section 1 of ARTICLE V and inserting in lieu thereof:

          "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 
<PAGE>
 
     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."

     (b)  Adding a new Section 2 to Article V (and renumbering Sections 2, 3 and
4 as Sections 3, 4 and 5, respectively), as follows:

          "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 for record with the State Department of
     Assessments and Taxation of Maryland or otherwise determined pursuant to
     these Articles:

          (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 such
              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
                                       2
<PAGE>
 
              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 which 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 the 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 stock- 

                                       3
<PAGE>
 
              holders 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.

          (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.



                                       4
<PAGE>
 
          (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.

          (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."

     (c)  Striking out the last sentence of Section 3(a)  (as renumbered from
          Section 2(a) by this Amendment) of Article V, and inserting in lieu
          thereof:

         "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


                                       5
<PAGE>
 
         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."

     (d)  Striking out the words "of any class" from Section 5 (as renumbered
from Section 4 by this Amendment) of Article V.

     (e)  Striking out the last sentence of Section 1(b) of Article VII.

     (f)  Striking out Section 1(g) of Article VII and inserting in lieu
thereof:

     "(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 other
           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



                                       6
<PAGE>
 
           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."

     (g)  Striking out the preamble to Section 3 of Article VII and the portion
of Section 3(a) of Article VII prior to subsection (1) and inserting in lieu
thereof:

          "SECTION 3.  For the purposes referred to in these Articles of
      Incorporation, the net asset value of 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



                                       7
<PAGE>
 
              Section 2 of Article V), in each case as of such determination
              time.

              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:"

     (h)  Adding a new subsection (b) to Section 3 of Article VII (and
 renumbering subsection (b) as subsection (c)), as follows:

          "(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."

     (j)  Striking out Section 4 of Article VII and inserting in lieu thereof:

          "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 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


                                       8
<PAGE>
 
                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."

                SECOND: The Board of Directors of the Corporation on March 14,
1996, duly adopted resolutions in which was set forth the foregoing amendments
to the Articles, declaring that the said amendments of the Articles as proposed
were advisable and directing that they be submitted for action thereon by the
stockholders of the Corporation at a meeting to be held on June 19, 1996.

                THIRD: Notice setting forth said amendments of the Articles and
stating that a purpose of the meeting of the stockholders would be to take
action thereon, was given, as required by law, to all stockholders entitled to
vote thereon. The amendments of the Articles as hereinabove set forth were
approved by the stockholders of the Corporation at said meeting by the
affirmative vote of a majority of all the votes entitled to be cast thereon, as
required by the Articles.


                                       9
<PAGE>
 
                FOURTH: The amendments of the Articles hereinabove set forth
have been duly advised by the Board of Directors and approved by the
stockholders of the Corporation.

                FIFTH: This Amendment does not increase the number of shares
which the Corporation has authority to issue. Immediately before this Amendment,
the total number of shares of stock which the Corporation had authority to issue
was 75,000,000 shares of capital stock of the par value of $1.00 each, having an
aggregate par value of $75,000,000. As amended by this Amendment, the total
number of shares of stock 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.



                                      10
<PAGE>
 
          IN WITNESS WHEREOF, Lord Abbett Developing Growth Fund, Inc. has
caused these presents to be signed in its name and on its behalf by its
President and witnessed by its Secretary on ____________, 1996.

                                 LORD ABBETT DEVELOPING GROWTH FUND, INC.



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

WITNESS:


/s/ Kenneth B. Culter
______________________________
Kenneth B. Cutler, Secretary




                                      11
<PAGE>
 
       THE UNDERSIGNED, President of Lord Abbett Developing Growth Fund, Inc.,
who executed on behalf of the Corporation the foregoing Articles of Amendment,
of which this Certificate is made a part, hereby acknowledges, in the name and
on behalf of said Corporation, the foregoing Articles of Amendment to be the
corporate act of said Corporation and further certifies that, to the best of his
knowledge, information and belief, the matters and facts set forth therein with
respect to the authorization and approval thereof are true in all material
respects under the penalties of perjury.

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



                                      12
<PAGE>
 
                    LORD ABBETT DEVELOPING GROWTH FUND, INC.

                             ARTICLES OF AMENDMENT


          LORD ABBETT DEVELOPING GROWTH FUND, INC. , a Maryland corporation
(hereinafter called the "Corporation"), hereby certifies to the State Department
of Assessments and Taxation of Maryland, that:

          FIRST:  The Articles of Incorporation of the Corporation (hereinafter
called the "Articles"), as heretofore amended, are hereby further amended by
specifying the legal name for the existing class of capital stock of the
Corporation, both outstanding shares and unissued shares, as Class A.

          SECOND:  A majority of the entire Board of Directors of the
Corporation on March 14, 1996, duly adopted resolutions approving the foregoing
amendment to the Articles.

          THIRD:  The amendment of the Articles hereinabove set forth has been
duly approved by the Board of Directors of the Corporation and is limited to a
change expressly permitted by (S) 2-605 of the General Corporation Law of the
State of Maryland to be made without action of the stockholders.

          FOURTH:  The Corporation is registered as an open-end company under
the Investment Company Act of 1940, as amended from time to time.
<PAGE>
 
          IN WITNESS WHEREOF, Lord Abbett Developing Growth Fund, Inc. has
caused these presents to be signed in its name and on its behalf by its
President and witnessed by its Secretary on ____________, 1996.

                   LORD ABBETT DEVELOPING GROWTH FUND, INC.



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

WITNESS:


/s/Kenneth B. Cutler
- -----------------------------
Kenneth B. Cutler,  Secretary







                                      2
<PAGE>
 
       THE UNDERSIGNED, President of Lord Abbett Developing Growth Fund, Inc.,
who executed on behalf of the Corporation the foregoing Articles of Amendment,
of which this Certificate is made a part, hereby acknowledges, in the name and
on behalf of said Corporation, the foregoing Articles of Amendment to be the
corporate act of said Corporation and further certifies that, to the best of his
knowledge, information and belief, the matters and facts set forth therein with
respect to the authorization and approval thereof are true in all material
respects under the penalties of perjury.


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





                                       3
<PAGE>
 
                    LORD ABBETT DEVELOPING GROWTH FUND, INC.

                             ARTICLES SUPPLEMENTARY


          LORD ABBETT DEVELOPING GROWTH FUND, INC., a Maryland corporation
(hereinafter called the "Corporation"), hereby certifies to the State De
partment of Assessments and Taxation of Maryland that:

          FIRST:  The Corporation presently has authority to issue 75,000,000
shares of capital stock, of the par value $.001 each, previously classified and
designated by the Board of Directors as Class A shares.  The number of shares of
capital stock which the Corporation shall have authority to issue is hereby
increased to 1,000,000,000, of the par value $.001 each, having an aggregate par
value of $1,000,000.


          SECOND:  Pursuant to the authority of the Board of Directors to
classify and reclassify unissued shares of stock of the Corporation and to
classify a series into one or more classes of such series, the Board of
Directors hereby classifies and reclassifies (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.

          THIRD:  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 (hereafter called the "Articles") and shall be
subject to all other provisions of the Articles relating to stock of the
Corporation generally.

          FOURTH:  The Corporation is registered as an open-end company under
the Investment Company Act of 1940, as amended.  The total number of shares of
capital stock that the Corporation has authority to issue has been increased by
the Board of Directors in accordance with (S) 2-105(c) of Title 2 of the General
Corporation Law of the State of Maryland.

          FIFTH:  The Class B and Class C shares aforesaid have been duly
classified by the Board of Directors under the authority contained in the
Articles.
<PAGE>
 
          IN WITNESS WHEREOF, Lord Abbett Developing Growth Fund, Inc. has
caused these presents to be signed in its name and on its behalf by its
President and witnessed by its Secretary on July 9, 1996.

                                        LORD ABBETT DEVELOPING GROWTH FUND, INC.



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


WITNESS:

/s/Kenneth B. Cutler
- -----------------------------
Kenneth B. Cutler, Secretary











                                       2
<PAGE>
 
       THE UNDERSIGNED, President of Lord Abbett Developing Growth Fund, Inc.,
who executed on behalf of the Corporation the foregoing Articles Supplementary,
of which this Certificate is made a part, hereby acknowledges, in the name and
on behalf of said Corporation, the foregoing Articles Supplementary to be the
corporate act of said Corporation and further certifies that, to the best of his
knowledge, information and belief, the matters and facts set forth therein with
respect to the authorization and approval thereof are true in all material
respects under the penalties of perjury.


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










                                       3





CONSENT OF INDEPENDENT AUDITORS

Lord Abbett Developing Growth Fund, Inc.:

We consent to the incorporation by reference in Post-Effective  Amendment No. 21
to  Registration  Statement  No.  811-2871  of our  report  dated  March 1, 1996
appearing in the annual report to shareholders  and to the reference to us under
the captions "Financial  Highlights" in the Prospectus and "Investment  Advisory
and Other  Services" and  "Financial  Statements" in the Statement of Additional
Information, both of which are part of such Registration Statement.


/s/ DELOITTE & TOUCHE LLP
New York, New York


July 10, 1996

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000276914
<NAME> LORD ABBETT DEVELOPING GROWTH FUND, INC.
       
<S>                             <C>
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<FISCAL-YEAR-END>                          JAN-31-1996
<PERIOD-START>                             FEB-01-1995
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