LORD ABBETT DEVELOPING GROWTH FUND INC /NEW/
485BPOS, 1997-11-17
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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. 23                [X]
                                       And

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

                       Post-Effective Amendment No. 22                [X]


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

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

                  REGISTRANT'S TELEPHONE NUMBER (212) 848-1800
                         Thomas F. Konop, Vice President
                     767 FIFTH AVENUE, NEW YORK, N. Y. 10153
                      Name and Address of Agent for Service

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

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

          on (date) 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.



<PAGE>


                    LORD ABBETT DEVELOPING GROWTH FUND, INC.
                                    FORM N-1A
                              Cross Reference Sheet
                         Post-Effective Amendment No. 23
                            Pursuant to Rule 481 (a)

                                Explanatory Note

This  Post-Effective  Amendment  No. 23 (the  "Amendment")  to the  Registrant's
Registration  Statement relates only to Class Y shares of Lord Abbett Developing
Growth Fund, Inc.

The other classes of shares of the  Registrant  are listed below and are offered
by the  Prospectus  and  Statement of Additional  Information  in Parts A and B,
respectively of the  Post-Effective  Amendment to the Registrant's  Registration
Statement as  identified.  The following  are separate  classes of shares of the
Registrant.  This  Amendment  does not relate to, amend or otherwise  affect the
Prospectus  and  Statement  of  Additional  Information  contained  in the prior
Post-Effective  Amendment  listed  below,  and pursuant to Rule 485(d) under the
Securities Act of 1933, does not affect the effectiveness of such Post-Effective
Amendment.

                                         Post-Effective
                                          AMENDMENT NO.

Class A, B and C                              22


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

<PAGE>

Form N-1A                      Location In Prospectus or
ITEM NO.                       STATEMENT OF ADDITIONAL INFORMATION

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

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

<PAGE>
LORD ABBETT
DEVELOPING GROWTH FUND, INC.
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 four classes of shares.  These classes,  called Class A, B, C and Y shares,
provide investors with different  investment options in purchasing shares of the
Fund.  Only  Class Y shares  of the Fund are  offered  by this  Prospectus.  See
"Purchases" for a description of this class.

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
November 17, 1997.

PROSPECTUS CLASS Y SHARES

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.

     CONTENTS                           PAGE

        1       Investment Objective     2

        2       Fee Table                2

        3       How We Invest            3

        4       Purchases                4

        5       Shareholder Services     5

        6       Our Management           5

        7       Dividends, Capital Gains
                Distributions and Taxes  6

        8       Redemptions              7

        9       Performance              8


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.

                                      Class Y
                                      Shares
Shareholder Transaction Expenses
(as a percentage of offering price)
Maximum Sales Load on Purchases
(See "Purchases")                       None

Deferred Sales Load (See "Purchases")   None

Annual  Fund  Operating  Expenses(1)  (as a  percentage  of average  net assets)
Management Fees (See "Our  Management")  0.59% 12b-1 Fees (See "Purchases") None
Other Expenses (See "Our Management") 0.29% Total Operating Expenses 0.88%



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
dividends  and  distributions,  you  would  pay the  following  total  expenses,
assuming redemption on the last day of each period indicated.

               1 year    3 years

Class Y shares   $ 9       $28


(1)The annual  operating  expenses  shown in the summary have been restated from
January 31, 1997 fiscal year amounts to reflect current fees.

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



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.  It is a  formative  phase  for
companies  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.

At any given time,  there are many hundreds of  publicly-traded  corporations in
the  developing  growth  phase.  In  choosing  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 arising 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; the 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  we consider 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 in order to minimize risk.

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  entail more risk and have more volatile prices
than those of mature  companies,  the Fund's net asset value per share is likely
to experience above-average fluctuations.

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
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.

Portfolio  Turnover.  The  portfolio  turnover  rate for the  fiscal  year ended
January 31, 1997 was 42.35%, compared to 50.12% for the prior fiscal year.

4 PURCHASES

Class Y shares.  Class Y shares are  purchased  at net asset value with no sales
charge  of any kind.  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.

Who May  Invest?  Eligible  purchasers  of Class Y shares  include  (i)  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 Y shares in particular investment products
made  available  for a fee to  clients  of  such  brokers,  dealers,  registered
investment  advisers  or other  financial  institutions  ("mutual  fund wrap fee
programs"),  (ii) the trustee or custodian  under any deferred  compensation  or
pension or  profit-sharing  plan or payroll  deduction IRA  established  for the
benefit of the  employees  of any company  with an  account(s)  in excess of $10
million managed by Lord Abbett or its sub-advisors on a private-advisory-account
basis, and (iii) institutional investors, including retirement plans, companies,
foundations,  trusts,  endowments  and other  entities where the total amount of
potential investable assets exceeds $50 million that were not introduced to Lord
Abbett by persons  associated with a broker or dealer primarily  involved in the
retail security business.

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 the Lord  Abbett  Developing  Growth  Fund (P.O.  Box  419100,  Kansas  City,
Missouri 64141).  The minimum initial investment is $1 million except for mutual
fund wrap fee programs  which have no minimum.  This  offering may be suspended,
changed or  withdrawn  by Lord Abbett  Distributor  which  reserves the right to
reject any order.

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 net asset value 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 net asset
value  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.

Buying  Shares By Wire. To open an account,  call 1-800  821-5129 to set up your
account and to arrange a wire  transaction.  Wire to:  United  Missouri  Bank of
Kansas City, N.A., Routing number - 101000695,  Account Number: 9878002611, FBO:
(account  name)  and  (account  number).   Specify  the  complete  name  of  the
fund/series  of your  choice,  note Class Y shares and include  your new account
number and your name. To add to an existing  account,  wire to: United  Missouri
Bank of  Kansas  City,  N.A.  ,  routing  number -  101000695,  account  number:
9878002611,  FBO: (account name) and (account number). Specify the complete name
of the fund/series of your choice,  note Class Y shares and include your account
number and your name.

5 SHAREHOLDER SERVICES

We offer the following shareholder services:

Telephone Exchange Privilege:  Class Y shares may be exchanged without a service
charge for shares of the same class of any other Lord Abbett-sponsored fund.

You or your representative with proper  identification can instruct your 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. A
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 a Fund in Kansas City (800-821-5129)  prior to the close of the NYSE
to obtain a 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.  Each Fund reserves the right to
terminate  or  limit  the  privilege  of  any  shareholder  who  makes  frequent
exchanges. Each 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.

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

6 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 68 years and  currently  manages
approximately  $25  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  Investment  Advisory  Group,  a
private investment  company,  since October 1988. Mr. McGruder has over 28 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,
1997, 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.

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, C and Y shares have equal rights
as to voting, dividends, assets and liquidation except for differences resulting
from certain  class-specific  expenses.  Class Y shares are sold to institutions
exclusively  with no front-end or contingent  deferred  sales charge and no Rule
12b-1 charges.  Class A, B and C shares sold to the retail public are subject to
Rule 12b-1  charges.  With  certain  exceptions,  Class A shares are sold with a
front-end  sales  charge  at the  time of  purchase  and are  not  subject  to a
contingent deferred sales charge when they are redeemed. Class B shares are sold
without a sales charge at the time of purchase,  but are subject to a contingent
deferred sales charge if they are redeemed before the sixth anniversary of their
purchase.  Class B shares  will  automatically  convert to Class A shares on the
eighth  anniversary of your purchase.  Class C shares are sold with no front-end
sales charge but have no  conversion  feature and are subject to a 1% contingent
deferred  sales  charge on  redemptions  before the first  anniversary  of their
purchase. Due to the class-specific  expenses,  dividends of Class B and Class C
shares  are  likely to be lower  than for Class A shares,  and are  likely to be
higher  for  Class Y  shares  than  for any  other  class  of  shares.  For more
information regarding the Class A, B and C shares, please call 1-800-874-3733 to
request a prospectus  for those  shares.  There is a  possibility  that one fund
might become liable for any misstatement,  inaccuracy,  or incomplete disclosure
in the prospectus concerning the other fund.

7 DIVIDENDS, CAPITAL GAINS DISTRIBUTIONS AND TAXES

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 November and/or February.  You may take them
in cash or 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. Dividends derived from the Fund's
ordinary income and net short-term  capital gains are taxable to Shareholders at
ordinary income rates. Under recently enacted legislation,  the maximum tax rate
on long-term capital gains for a U.S. individual,  estate or trust is reduced to
20% and the "holding period" for long-term  capital gains treatment is increased
from  one-year to eighteen  months.  (If the taxpayer is in the 15% tax bracket,
the rate is 10%.) An  individual,  estate or trust with a holding period greater
than one year but less than 18 months has  "mid-term"  gains  taxed at a maximum
rate of 28% (15% if the taxpayer is in the 15% tax bracket). Although it has not
yet done so, Treasury has the authority to amend the tax law governing  taxation
of  shareholders  of a regulated  investment  company to reflect these  changes.
Although the Fund does not know when and what  regulations  will be promulgated,
it believes that the regulations should provide that whether received in cash or
shares,  regardless  of how long a  taxpayer  has held the  shares  of the Fund,
distributions  derived  from net  long-term  or mid-term  capital  gains will be
taxable to shareholders as long-term or mid-term capital gains, respectively.

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.

8 REDEMPTIONS

To obtain the proceeds of an expedited  redemption  of $50,000 or less,  you 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.

Send your written redemption 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.

Wire.  You must sign up for the wire feature  before using it. To verify that it
is in place, call  1-800-821-5129.  Minimum wire:  $1,000.  Your wire redemption
request  must be  received by the Fund before the close of the NYSE for money to
be wired on the next business day.

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.

9 PERFORMANCE

The Fund  completed its fiscal year on January 31, 1997 with net asset values of
$12.80  per share for the Class A shares and $12.75 per share for both the Class
B and Class C shares, respectively.

While  the stock  market as a whole  performed  well over the year,  the  strong
performance  that the Fund posted over the past 12 months can be  attributed  to
careful stock  selection  within the small-cap  arena.  In particular,  the Fund
benefited from its exposure to select companies in the technology,  service, and
energy sectors, as well as industrial machinery companies.

The Fund continued to focus on niche companies.  Many of these companies,  whose
expertise in specialty products or services precludes much competition,  enjoy a
large market share within their  industries.  Additionally,  niche companies are
less  vulnerable to economic or marketplace  trends.  As such,  companies in the
Fund enjoyed steady  earnings  throughout the year. The Fund seeks to temper the
volatility  inherent in the small-cap arena through  diversity.  At the close of
the fiscal  year,  the Fund  owned  over 120  companies  covering  17  different
industries.

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 net asset value.  When total return is quoted for Class Y shares, it
is  shown  at net  asset  value  without  the  deduction  of any  sales  charge.
Quotations of yield or total return for any period when an expense limitation is
in effect will be greater  than if the  limitation  had not been in effect.  See
"Past  Performance"  in  the  Statement  of  Additional  Information  for a more
detailed description.

See "Performance" in the Statement of Additional Information for a more detailed
discussion concerning 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.

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




(1)  Performance  numbers for the  unmanaged  Russell  2000 Index do not reflect
transaction costs or management fees. An investor cannot invest directly in this
unmanaged index.
(2) Total return is the percent change in net asset value with all dividends and
distributions  reinvested for the periods shown using the  SEC-required  uniform
method to compute  such  return.  The Class A share total  return  reflects  the
deduction of 12b-1 expenses which the Class Y shares do not have.


Investment Manager and Underwriter
Lord, Abbett & Co. and Lord Abbett Distributor LLC
The General Motors Building
767 Fifth Avenue
New York, New York 10153-0203
212-848-1800
Custodian
The Bank of New York
48 Wall Street
New York, New York 10286
Transfer Agent and Dividend
Disbursing Agent
United Missouri Bank of Kansas City, N.A.
Tenth and Grand
Kansas City, Missouri 64141
Shareholder Servicing Agent
DST Systems, Inc.
P.O. Box 419100
Kansas City, Missouri 64141 800-821-5129  Auditors Deloitte & Touche LLP Counsel
Debevoise & Plimpton Printed in the U.S.A.
LADG-1-697
(6/97)

Prospectus '97
November 17, 1997


Lord Abbett
Developing
Growth Fund
CLASS Y SHARES
<PAGE>
LORD ABBETT

STATEMENT OF ADDITIONAL INFORMATION                            November 17, 1997

                    LORD ABBETT DEVELOPING GROWTH FUND, INC.

This Statement of Additional  Information is not a Prospectus.  A Prospectus for
the  Class Y shares of Lord  Abbett  Developing  Growth  Fund,  Inc.  (sometimes
referred to as "we" or the "Fund") 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 
November 17, 1997.

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  consists of four classes (A, B, C and Y),  $0.01 par value.  The Board of
Directors  will  allocate  these  authorized  shares of capital  stock among the
classes from time to time. All shares have equal noncumulative voting rights and
equal  rights with  respect to  dividends,  assets and  liquidation,  except for
certain  class-specific  expenses.  They are fully paid and  nonassessable  when
issued and have no preemptive or  conversion  rights.  Although no present plans
exist to do so,  further  classes  may be added in the  future.  The  Investment
Company Act of 1940,  as amended (the "Act"),  requires that where more than one
class exists,  each class must be preferred over all other classes in respect of
assets specifically allocated to such class.

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

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

         TABLE OF CONTENTS                                      Page

1.       Investment Objective and Policies                         2
2.       Directors and Officers                                    5
3.       Investment Advisory and Other Services                    7
4.       Portfolio Transactions                                    8
5.       Purchases, Redemptions and Shareholder Services           9
6.       Past Performance                                         10
7.       Taxes                                                    11
8.       Information About the Fund                               12
9.       Financial Statements                                     12



<PAGE>


                                       1.
                        Investment Objective and Policies

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

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

NON-FUNDAMENTAL   INVESTMENT   RESTRICTIONS.   In  addition  to  the  investment
restrictions above which cannot be changed without shareholder approval, we also
are subject to the following  non-fundamental  investment  policies which may be
changed by the Board of Directors  without  shareholder  approval.  The Fund may
not:  (1)  borrow in excess  of 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,

<PAGE>

straddles,  spreads or combinations  thereof,  except to the extent permitted in
the Fund's  prospectus and statement of additional  information,  as they may be
amended  from  time to time;  or (10)  buy from or sell to any of its  officers,
directors,  employees,  or its  investment  adviser  or  any  of  its  officers,
directors, partners or employees, any securities other than shares of the Fund's
common stock.

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

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

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

PORTFOLIO  TURNOVER  RATE.  For the fiscal  year ended  January  31,  1997,  our
portfolio turnover rate was 42.35% versus 50.12% for the prior fiscal year.

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

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

The public  markets for existing  stock index futures  contracts,  such as those
using the  Standard  & Poor's  100 Index  and 500  Index  traded on the  Chicago
Mercantile  Exchange or those using the New York Stock Exchange  Composite Index
traded on the New York Stock  Exchange  ("NYSE"),  are active and have developed
substantial  liquidity and we expect a similar market to develop for stock index
futures on a representative  group of over-the-counter  stocks. The existence of
an active market would permit us to close out our position in futures  contracts
by purchasing an equal and opposite position in the public market. Under futures
contracts  currently in use, the  purchaser  would be required to segregate in a
separate account,  as a good faith deposit,  cash or Treasury bills in an amount
set by a board of trade or exchange (currently  approximately 5% of the contract
value).  Each day during the  contract  period we would either pay or receive an
amount of cash equal to the daily  change in the total  value of the  contracts.
The amount which we may segregate upon entering into a futures  contract may not
exceed, together with the amounts on deposit under all outstanding contracts, 5%
<PAGE>

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.

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

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

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

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

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

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


                                       2.
                             Directors and Officers

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

Robert S. Dow, age 52, Chairman and President
E. Wayne Nordberg, age 59, Vice President

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

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

Chief Executive Officer of Courtroom  Television.  Formerly  President and Chief
Executive Officer of Time Warner Cable Programming, Inc. Age 56.

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

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

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

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

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

Managing  Director of Directorship  Inc., a consultancy in board  management and
corporate  governance.  Formerly  General Partner of The Marketing  Partnership,
Inc., a full service marketing  consulting firm  (1994-1997).  Formerly Chairman
and Chief  Executive  Officer of Lincoln Snacks,  Inc.,  manufacturer of branded
snack foods  (1992-1994).  Currently  serves as Director of Den West  Restaurant
Co., J. B. Williams, and Fountainhead Water Company. Age 64.




<PAGE>


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

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

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

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

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

<TABLE>
<CAPTION>


                                 FOR THE FISCAL YEAR ENDED JANUARY  31, 1997

         (1)                         (2)                  (3)                    (4)

                                                                             For Year Ended
                                               Equity-Based                  December 31, 1996
                                               Benefits Accrued              Total Compensation
                           Aggregate           by the Fund and               Accrued by the Fund and
                           Compensation        Twelve Other Lord             Twelve Other Lord
                           Accrued by          Abbett-sponsored              Abbett-sponsored
NAME OF DIRECTOR           THE FUND1           FUNDS2                        FUNDS3
<S>                        <C>                 <C>                           <C>    

E. Thayer Bigelow          $832                $11,563                       $48,200
Stewart S. Dixon           $806                $22,283                       $46,700
John C. Jansing            $806                $28,242                       $46,700
C. Alan MacDonald          $837                $29,942                       $48,200
Hansel B. Millican, Jr.    $851                $24,499                       $49,600
Thomas J. Neff             $816                $15,990                       $46,900

<FN>

1. Outside  directors' fees,  including  attendance fees for board and committee
   meetings,  are allocated among all Lord  Abbett-sponsored  funds based on the
   net  assets of each fund.  A portion  of the fees  payable by the Fund to its
   outside  directors  is being  deferred  under a plan that deems the  deferred
   amounts to be  invested in shares of the Fund for later  distribution  to the
   directors.  The amounts of the aggregate  compensation payable by the Fund as
   of January 31,  1997 deemed  invested  in Fund  shares,  including  dividends
   reinvested  and  changes  in  net  asset  value  applicable  to  such  deemed
   investments,  were: Mr. Bigelow,  $1,892;  Mr. Dixon,  $50,314;  Mr. Jansing,
   $51,883; Mr. MacDonald, $17,789; Mr. Millican, $53,269 and Mr. Neff, $53,574.
   If the amounts deemed  invested in Fund shares were added to each  director's
   actual  holdings of Fund shares as of January 31,  1997,  each would own, the
   following:  Mr. Bigelow,  148 shares;  Mr. Dixon,  4,899 shares; Mr. Jansing,
   20,760 shares; Mr. McDonald,  1,390 shares;  Mr. Millican,  7,521 shares; and
   Mr. Neff, 8,863 shares.
<PAGE>

2. Each Lord  Abbett-sponsored fund has a retirement plan providing that outside
   directors may receive  annual  retirement  benefits for life equal to 100% of
   their final annual retainers following  retirement at or after age 72 with at
   least 10 years of service. Each 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. Such retirement
   plans, and the deferred  compensation plans referred to in footnote one, have
   been amended  recently to, among other things,  enable  outside  directors to
   elect to convert their  prospective  benefits under the  retirement  plans to
   equity-based  benefits  under the deferred  compensation  plans  (renamed the
   equity-based  plans and  hereinafter  referred  to as such).  Five of the six
   outside  directors  made such an election.  Mr.  Jansing did not. The amounts
   accrued in column 3 were accrued by the Lord  Abbett-sponsored  funds for the
   twelve months ended October 31, 1996 with respect to the equity-based  plans.
   These  accruals  were  based on the  plans as in  effect  before  the  recent
   amendments  and on the fees payable to outside  directors of the Fund for the
   twelve months ended October 31, 1996. Under the recent amendments, the annual
   retainer was  increased to $50,000 and the annual  retirement  benefits  were
   increased from 80% to 100% of a director's  final annual  retainer.  Thus, if
   Mr. Jansing were to retire at or after age 72 and the annual retainer payable
   by the funds were the same as it today,  he would receive  annual  retirement
   benefits of $50,000.

3. This  column  shows  aggregate  compensation,  including  directors  fees and
   attendance fees for board and committee meetings,  of a nature referred to in
   footnote  one,  accrued by the Lord  Abbett-sponsored  funds  during the year
   ended December 31, 1996.
</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, Brown, Carper, Ms. Foster, Messrs. Hilstad,  Morris, Noelke and Walsh are
partners of Lord Abbett;  the others are employees:  Stephen J. McGruder age 54,
Executive Vice President,  Paul A. Hilstad, age 54, Vice President and Secretary
(with Lord Abbett since 1995; formerly Senior Vice President and General Counsel
of American Capital Management & Research, Inc.); Stephen I. Allen, age 44; Zane
E. Brown, age 46; Daniel E. Carper, age 45; Daria L. Foster, age 43; Lawrence H.
Kaplan,  age 40; Thomas F. Konop,  age 55;  Robert G. Morris,  age 52; Robert J.
Noelke,  age 40;  A.  Edward  Oberhaus,  age 37;  John J.  Walsh,  age 61,  Vice
Presidents; and Keith F. O'Connor, age 42, Vice President and 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 September 30, 1997,  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.  Ten of the  twelve  general  partners  of Lord  Abbett are
officers and/or directors of the Fund, and are identified as follows: Stephen I.
Allen, Zane E. Brown, Daniel E. Carper,  Robert S. Dow, Daria L. Foster, Paul A.
Hilstad,  Robert G.  Morris,  Robert J.  Noelke,  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  Class A, B and C shares  based on the  classes'  proportionate
shares of such average daily net assets.  For the fiscal years ended January 31,
1997,  1996 and 1995,  the  management  fees  paid to Lord  Abbett  amounted  to
$1,579,214, $1,098,965 and $897,585, respectively.

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

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

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

                                       4.
                             Portfolio Transactions

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

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

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

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
<PAGE>

Lord Abbett to access various  information  bases.  Such services may be used by
Lord Abbett in servicing all their  accounts,  and not all of such services will
necessarily  be used by Lord Abbett in connection  with their  management of the
Fund; conversely,  such services furnished in connection with brokerage on other
accounts  managed by Lord Abbett may be used in connection with their management
of the  Fund,  and not all of such  services  will  necessarily  be used by Lord
Abbett in connection  with their advisory  services to such other  accounts.  We
have been advised by Lord Abbett that  research  services  received from brokers
cannot be allocated to any  particular  account,  are not a substitute  for Lord
Abbett's  services but are  supplemental  to their own research  effort and when
utilized,  are subject to internal  analysis  before being  incorporated by Lord
Abbett into their investment  process.  As a practical  matter,  it would not be
possible for Lord Abbett to generate all of the information  presently  provided
by brokers.  While  receipt of research  services from  brokerage  firms has not
reduced Lord Abbett's  normal research  activities,  the expenses of Lord Abbett
could be  materially  increased  if it  attempted  to generate  such  additional
information  through its own staff and  purchased  such  equipment  and software
packages directly from the suppliers.

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

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

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

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

During the fiscal  years ended  January 31, 1997,  1996 and 1995,  we paid total
commissions  to  independent  dealers  of  $1,696,590,   $981,015  and  $399,634
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.
<PAGE>

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 Y shares  will be  determined  by
taking Class Y shares (net assets  divided by shares  outstanding).  Our Class Y
shares will be offered at net asset value.

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

CLASS Y SHARE 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 any Lord  Abbett-sponsored  funds  currently  offering Class Y
Shares  to the  public.  Currently  those  funds  consist  of  Affiliated  Fund,
Small-Cap Series, International Series and Bond-Debenture Fund.

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.

                                       6.
                                Past Performance

The Fund computes the average annual compounded rate of total return for Class Y
shares 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 no 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 Y shares no sales charge is deducted from
the initial investment and the 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.

Class A share  performance.  Using the computation  method  described above, the
Fund's  average annual  compounded  rates of total return for the last one, five
and ten fiscal year(s) ending on January 31, 1997 were as follows:
21.00%, 14.98% and 12.12%, respectively for the Fund's Class A shares.
<PAGE>

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.  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.

The  foregoing  discussion  relates  solely to U.S.  federal  income  tax law as
applicable to United States  persons  (United  States  citizens or residents and
United States domestic  corporations,  partnerships,  trusts and estates).  Each
shareholder  who is not a United States  person  should  consult his tax adviser
regarding  the U.S. and foreign tax  consequences  of the ownership of shares of
the Fund,  including a 30% (or lower treaty rate) United States  withholding tax
<PAGE>

on dividends  representing ordinary income and net short-term capital gains, and
the  applicability  of United States gift and estate taxes to non-United  States
persons who own Fund share.


                                       8.
                           Information About the Fund

The  directors,  trustees and officers of Lord  Abbett-sponsored  mutual  funds,
together  with the partners  and  employees  of Lord  Abbett,  are  permitted to
purchase and sell securities for their personal investment accounts. In engaging
in  personal  securities  transactions,  however,  such  persons  are subject to
requirements  and  restrictions  contained  in the Fund's  Code of Ethics  which
complies,  in  substance,  with each of the  recommendations  of the  Investment
Company Institute's  Advisory Group on Personal  Investing.  Among other things,
the Code  requires  that Lord  Abbett  partners  and  employees  obtain  advance
approval before buying or selling securities, submit confirmations and quarterly
transaction  reports,  and obtain  approval  before  becoming a director  of any
company;  and it prohibits  such persons from investing in a security seven 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, 1997 and the
report of  Deloitte & Touche LLP,  independent  accountants,  on such  financial
statements  contained in the 1997 Annual Report to  Shareholders  of Lord Abbett
Developing  Growth  Fund,  Inc.  are  incorporated  herein by  reference to such
financial  statements  and report in reliance  upon the  authority of Deloitte &
Touche LLP as experts in auditing and accounting.




<PAGE>


PART C OTHER INFORMATION


Item 24. FINANCIAL STATEMENTS AND EXHIBITS

         (a)      Financial Statements
                  Part A- Financial  Highlights  for the ten years ended January
                          31, 1997.

                  Part B- Statement  of Net  Assets at January  31,  1997.
                          Statement of  Operations  for the year ended January
                          31,  1997.  Statements  of Changes in Net Assets for
                          the years ended January 31, 1997 and 1996. Financial
                          Highlights  for the five  years  ended  January  31,
                          1997.

         (b)      Exhibits -

                  99.B1     Form of Articles Supplementary*
                  99.B18    Form of Plan entered into by Registrant pursuant to 
                            Rule 18f-3.**

          *    Filed herewith.  

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

                  Exhibit items not listed above are not applicable.


Item 25. PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT

                  None.


Item 26. NUMBER OF RECORD HOLDERS OF SECURITIES

                  At October  31,  1997  - Class  A -  26,861
                                           Class  B -   4,156
                                           Class  C -   2,051


Item 27. INDEMNIFICATION

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

         The general effect of these statutes is to protect officers,  directors
         and  employees  of  Registrant  against  legal  liability  and expenses
         incurred by reason of their positions with the Registrant. The statutes
         provide for  indemnification  for liability for proceedings not brought
         on behalf of the  corporation  and for those  brought  on behalf of the
         corporation,   and  in  each  case   place   conditions   under   which
         indemnification  will be  permitted,  including  requirements  that the
         officer,  director  or  employee  acted in good  faith.  Under  certain
         conditions,  payment of expenses in advance of final disposition may be
         permitted. The By-laws of Registrant, without limiting the authority of
         Registrant to indemnify any of its officers, employees or agents to the
         extent consistent with applicable law, make the  indemnification of its
         directors  mandatory  subject only to the  conditions  and  limitations

<PAGE>

         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.


<PAGE>

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  5,700 private
         accounts.  Other than acting as directors  and/or  officers of open-end
         investment  companies  sponsored by Lord,  Abbett & Co.,  none of Lord,
         Abbett & Co.'s  partners has, in the past two fiscal years,  engaged in
         any other business, profession, vocation or employment of a substantial
         nature for his own  account or in the  capacity of  director,  officer,
         employee, or partner of any entity except as follows:

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


Item 29.(a)       PRINCIPAL UNDERWRITER

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

                  INVESTMENT ADVISOR
                  American Skandia Trust (Lord Abbett Growth & Income Portfolio)

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

                  Name and Principal                 Positions and Offices
                  BUSINESS ADDRESS (1)               WITH REGISTRANT

                  Robert S. Dow                      Chairman and President
                  Paul A. Hilstad                    Vice President & Secretary
                  Stephen I. Allen                   Vice President
                  Zane E. Brown                      Vice President
                  Daniel E. Carper                   Vice President
                  Daria L. Foster                    Vice President
                  Robert G. Morris                   Vice President
                  Robert J. Noelke                   Vice President
                  E. Wayne Nordberg                  Vice President
                  John J. Walsh                      Vice President
                  Michael McLaughlin                 Partner
                  W. Thomas Hudson, Jr.              Partner

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

         (c)      Not applicable

Item 30. LOCATION OF ACCOUNTS AND RECORDS

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

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

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

Item 31. MANAGEMENT SERVICES

         (a)      None


Item 32. UNDERTAKINGS

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


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

              The Registrant  undertakes to file a  post-effective  amendment to
              the  registration  statement,   using  financial  statements  with
              respect to the Class Y shares which need not be certified,  within
              4 to 6  months  after  the  effective  date  of  the  registration
              statement.


<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
17th day of November, 1997.

                                       LORD ABBETT DEVELOPING GROWTH FUND, INC.


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

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


                               Chairman, President
s/Robert S. Dow                AND DIRECTOR                  November 17, 1997
- ------------------------      --------------------          --------------------
Robert S. Dow                      (Title)                         (Date)

s/Keith F. O'Connor             Vice President               November 17, 1997
- ------------------------      --------------------          --------------------
Keith F. O'Connor                  (Title)                         (Date)


s/E. Wayne Nordberg              DIRECTOR                    November 17, 1997
- ------------------------      --------------------          --------------------
E. Wayne Nordberg                  (Title)                         (Date)


s/E. Thayer Bigelow              DIRECTOR                    November 17, 1997
- ------------------------      --------------------          --------------------
E. Thayer Bigelow                  (Title)                         (Date)


s/Stewart S. Dixon               DIRECTOR                    November 17, 1997
- ------------------------      --------------------          --------------------
Stewart S. Dixon                   (Title)                         (Date)


s/John C. Jansing                DIRECTOR                    November 17, 1997
- ------------------------      --------------------          --------------------
John C. Jansing                    (Title)                         (Date)


s/C. Alan MacDonald              DIRECTOR                    November 17, 1997
- ------------------------      --------------------          --------------------
C. Alan MacDonald                  (Title)                         (Date)


s/Hansel B. Millican, Jr.        DIRECTOR                    November 17, 1997
- ------------------------      --------------------          --------------------
Hansel B. Millican, Jr.            (Title)                         (Date)


s/Thomas J. Neff                 DIRECTOR                    November 17, 1997
- ------------------------      --------------------          --------------------
Thomas J. Neff                     (Title)                         (Date)




                             ARTICLES SUPPLEMENTARY
                                       TO
                            ARTICLES OF INCORPORATION
                                       OF
                    LORD ABBETT DEVELOPING GROWTH FUND, INC.


                  LORD  ABBETT   DEVELOPING   GROWTH  FUND,   INC.,  a  Maryland
corporation  having  its  principal  office  c/o The  Prentice-Hall  Corporation
System,  11 Chase Street,  Baltimore,  Maryland  21202  (hereinafter  called the
"Corporation"),  hereby  certifies to the State  Department of  Assessments  and
Taxation of Maryland, that:

                  FIRST:  The  Corporation  presently  has  authority  to  issue
1,000,000,000  shares of capital stock,  of the par value $.001 each,  having an
aggregate  par  value of  $1,000,000.  The  Board of  Directors  has  previously
classified  and  designated  955,000,000  authorized  shares  as Class A shares,
20,000,000 authorized shares as Class B shares, and 25,000,000 authorized shares
as Class C shares.

                  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  30,000,000 authorized but unissued
Class A shares as Class P shares and another 30,000,000  authorized but unissued
Class A shares  as Class Y  shares,  thus  leaving  895,000,000  authorized  but
unissued Class A shares of capital stock.

                  THIRD:  Subject  to the  power of the  Board of  Directors  to
classify and reclassify unissued shares, all shares of the Corporation's Class P
and Class Y stock  shall be  invested in the same  investment  portfolio  of the
Corporation  as the  Class  A,  Class B and  Class C stock  and  shall  have the
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
<PAGE>

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  Class P and Class Y shares  aforesaid  have been
duly classified by the Board of Directors  under the authority  contained in the
Articles.

                  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 Vice
President and witnessed by its Secretary on November ___, 1997.

                                        LORD ABBETT DEVELOPING GROWTH FUND, INC.

                                        By _________________________________
                                            Thomas F. Konop
                                            Vice President


WITNESS:


- ---------------------------
Paul A. Hilstad
Vice President and Secretary



<PAGE>



                  THE  UNDERSIGNED,  Vice  President  of LORD ABBETT  DEVELOPING
GROWTH FUND,  INC.,  who executed on behalf of said  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.

                                                     ---------------------------
                                                        Thomas F. Konop
                                                        Vice President




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