LORD ABBETT AFFILIATED FUND INC
497, 1998-12-08
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November 30, 1998

Class Y Shares PROSPECTUS

Lord Abbett Affiliated Fund
Lord Abbett Small-Cap Fund
Lord Abbett Growth Opportunities Fund
Lord Abbett International Fund
Lord Abbett High Yield Fund


Lord Abbett Logo


                                       1
<PAGE>


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

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

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

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

Auditors
Deloitte & Touche LLP

Counsel
Debevoise & Plimpton

Printed in the U.S.A.

(11/98)


LORD, ABBETT & Co.
The General Motors Building
767 Fifth Avenue
New York, NY 10153-0203


                                       2
<PAGE>

Lord Abbett  Affiliated Fund  ("Affiliated  Fund"),  Lord Abbett  Small-Cap Fund
("Small-Cap Fund"), Lord Abbett Growth Opportunities Fund ("Growth Opportunities
Fund"), Lord Abbett International Fund  ("International  Fund"), and Lord Abbett
High  Yield  Fund  ("High  Yield  Fund"),  individually  ("we"  or the  "Fund"),
collectively (the "Funds"),  are mutual funds each offering four or five classes
of shares,  each class providing  investors with different  purchasing  options.
Only Class Y shares of each Fund are offered by this Prospectus. See "Purchases"
for a description of this Class of shares.
  Affiliated Fund's  investment  objective seeks long-term growth of capital and
income  without  excessive  fluctuations  in market value;  Small-Cap Fund seeks
long-term  capital   appreciation;   Growth  Opportunities  Fund  seeks  capital
appreciation;  International Fund seeks long-term capital appreciation; and High
Yield  Fund  seeks  high  current  income  and  the   opportunity   for  capital
appreciation to produce a high total return.  There can be no assurance that any
Fund will achieve its objective.
  The Statement of Additional Information dated November 30, 1998 has been filed
with the Securities and Exchange  Commission  and is  incorporated  by reference
into this Prospectus.  You may obtain it, without charge, by writing to the Fund
or by  calling  800-874-3733  and asking  for "Part B of the  Prospectus  -- the
Statement of Additional  Information." In addition,  the Commission  maintains a
website   (http://www.sec.gov)   that   contains  the  Statement  of  Additional
Information, material incorporated by reference, and other information regarding
registrants that file electronically with the Commission.
  Mutual  Fund shares are not  deposits  or  obligations  of, or  guaranteed  or
endorsed by, any bank.  Shares are not insured by the Federal Deposit  Insurance
Corporation,  the Federal Reserve Board,  or any other agency.  An investment in
the Fund involves risks, including the possible loss of principal.

  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.


The General Motors Building
767 Fifth Avenue o New York o New York o 10153
Broker-Dealer Division:  (800) 426-1130
Financial Advisors Division:  (888) 522-2388



LORD ABBETT AFFILIATED FUND
LORD ABBETT SMALL-CAP FUND
LORD ABBETT GROWTH OPPORTUNITIES FUND 
LORD ABBETT INTERNATIONAL FUND LORD ABBETT
HIGH YIELD FUND


PROSPECTUS - Class Y Shares
  November 30, 1998

TABLE OF CONTENTS                         PAGE
Affiliated Fund                       
      How We Invest                        2
      Risk Factors                         2
      Portfolio Management                 2
      Investor Expenses                    2
      Financial Highlights                 3
Small-Cap Fund                        
      How We Invest                        4
      Risk Factors                         4
      Portfolio Management                 4
      Investor Expenses                    4
      Financial Highlights                 5
Growth Opportunities Fund             
      How We Invest                        6
      Risk Factors                         6
      Portfolio Management                 6
      Investor Expenses                    6
International Fund                    
      How We Invest                        5
      Risk Factors                         5
      Portfolio Management                 5
      Investor Expenses                    5
      Financial Highlights                 7
High Yield Fund                       
      How We Invest                        6
      Risk Factors                         6
      Portfolio Management                 6
      Investor Expenses                    6
Purchases                                 10
Shareholder Services                      10
Redemptions                               11
Dividends and Capital Gains               11
Our Management                            12
Fund Performance                          13
Investment Policies, Risks and Limits     13


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


                                       3
<PAGE>


AFFILIATED FUND

- --------------------------------------------------------------------------------
HOW WE INVEST
Normally, we invest in large, seasoned companies,  in sound financial condition,
issuing  common stocks  (including  securities  convertible  into common stocks)
which are expected to perform  above  average with respect to earnings and price
appreciation. Although the prices of common stocks fluctuate and their dividends
vary, historically,  common stocks have appreciated in value and their dividends
have increased when the companies they represent have prospered and grown.
  We try to  anticipate  major changes in the economy and select stocks which we
believe will benefit most from these changes.  We also look for positive  change
within market sectors, industries and individual companies.

See "Investment Policies, Risks and Limits."


RISK FACTORS
An investment in the Fund is not intended as a complete investment program.  The
value of your investment  will fluctuate in response to stock market  movements.
We constantly  balance the  opportunity for profit against the risk of loss, and
we believe it is important to take a flexible  approach and adjust the portfolio
to reflect changes in the  opportunities  for sound  investment  relative to the
risks assumed.  Therefore, we sell securities that we judge to be overpriced and
reinvest the proceeds in other  securities  which we believe offer better value.
Before you invest, please read "Invest-ment Policies, Risks and Limits."

- --------------------------------------------------------------------------------
PORTFOLIO MANAGEMENT
W. Thomas Hudson, Jr., Partner of Lord, Abbett & Co. ("Lord Abbett"),  Executive
Vice  President  and  Portfolio   Manager  of  Affiliated   Fund,  is  primarily
responsible for day-to-day management of the Fund. Mr. Hudson has been with Lord
Abbett since 1982 and has over 32 years of investment experience.  Mr. Hudson is
assisted by, and may delegate management duties to, other Lord Abbett employees.

Investor Expenses
The expenses  shown below are based on historical  expenses  adjusted to reflect
current fees. Future expenses may be different than those shown.
- --------------------------------------------------------------------------------
 AFFILIATED FUND                             Class Y
 Shareholder Transaction Expenses
- --------------------------------------------------------------------------------
 Maximum Sales Load on Purchases
 (as a % of offering price)                     None
- --------------------------------------------------------------------------------
 Deferred Sales Charge (See "Purchases")        None
- --------------------------------------------------------------------------------
 Annual Fund Operating Expenses(1) (as a % of average net assets)
- --------------------------------------------------------------------------------
 Management Fee (See "Our Management")          .32%
 12b-1 Fees                                     None
- --------------------------------------------------------------------------------
 Other Expenses (See "Our Management")          .08%
 Total Operating Expenses                       .40%

EXAMPLE
Assume an average  annual  return of 5% and no change in the level of  expenses.
For a $1,000  investment with all dividends and  distributions  reinvested,  you
would have paid the following  total  expenses  assuming you sold your shares at
the end of each time period indicated.
- --------------------------------------------------------------------------------
 Share Class                  1 year    3 years    5 years   10 years
- --------------------------------------------------------------------------------
 Class Y shares                 $4         $13       $22        $51

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

This example is for comparison and is not a representation  of Affiliated Fund's
actual expenses and returns, either past or present.

(1) For Class Y shares,  the annual operating expenses shown in the summary have
been restated from the Fund's  fiscal-year-end  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 each Fund.


                                       4
<PAGE>


FINANCIAL  HIGHLIGHTS The following  financial  highlights  have been audited by
Deloitte  &  Touche  LLP,  independent   auditors,   in  connection  with  their
semi-annual  audit of the  Fund's  Financial  Statements,  whose  report  may be
obtained on request.  Call  800-821-5129 and ask for the Fund's 1998 semi-annual
report.
<TABLE>
<CAPTION>

- --------------------------------------------------------------------------------
                                                   Affiliated Fund
- --------------------------------------------------------------------------------
 Per Class Y Share Operating               For the Period March 27, 1998(a)
- --------------------------------------------------------------------------------
 Performance:                                     to April 30, 1998
- --------------------------------------------------------------------------------
<S>                                                     <C>   
 Net asset value, beginning of period                   $15.44
 Income from investment operations
- --------------------------------------------------------------------------------
  Net investment income                                   0.016
  Net realized and unrealized
- --------------------------------------------------------------------------------
  gain on securities                                      0.014
 Total from investment operations                         0.03
- --------------------------------------------------------------------------------
 Net asset value, end of period                         $15.47
 Total Return(b)                                          0.19%
- --------------------------------------------------------------------------------
  Ratios to Average Net Assets(b)
  Expenses                                                0.04%
- --------------------------------------------------------------------------------
  Net investment income                                   0.11%
- --------------------------------------------------------------------------------
 Supplemental Data for all classes:                 Affiliated Fund
- --------------------------------------------------------------------------------
 Net Assets, end of period (000)                      $8,991,127
 Portfolio turnover rate                                 29.93%
                                       
 (a)  Commencement of Operations.
 (b)  Not Annualized.
 (c)  Amount less than 0.01%.
      See Notes to Financial Statements.
</TABLE>


                                       5
<PAGE>

SMALL-CAP FUND

- --------------------------------------------------------------------------------
HOW WE INVEST
Normally, we invest primarily in a carefully selected portfolio of common stocks
which, in the opinion of Fund management, are selling below value, at prices not
reflecting their potential,  and which can rise as a result of improved business
fundamentals or greater investor recognition. Dividend and investment income are
of incidental  importance,  and the Fund may invest in  securities  which do not
produce any income. Under normal circumstances, at least 65% of the Fund's total
assets will be  invested in common  stocks  issued by smaller,  less  well-known
companies (with market  capitalizations of less than $1 billion) selected on the
basis of fundamental  investment analysis.  The Fund may, however,  invest up to
35% of its total assets in the  securities of any issuer  without  regard to its
size or the market  capitalization  of its common stock.  Companies in which the
Fund is likely to invest may have limited  product  lines,  markets or financial
resources and may lack management  depth or experience.  The securities of these
companies  may have limited  marketability  and may be subject to more abrupt or
erratic market movements than securities of larger,  more established  companies
or the market averages in general.

See "Investment Policies, Risks and Limits."


RISK FACTORS
Although the Fund may invest,  from time to time, in stocks of  large-sized  and
small-sized  companies  guided  by  the  policies  mentioned  above,  the  small
capitalized  companies  in which it  primarily  invests  may  offer  significant
appreciation  potential.  However,  smaller  companies  may carry more risk than
larger companies.  Generally,  small companies rely on limited product lines and
markets,  financial  resources,  or other  factors,  and this may make them more
susceptible to setbacks or economic downturns.  Small capitalized  companies may
be more volatile in price, normally have fewer shares outstanding and trade less
frequently than large companies.  Therefore, the securities of smaller companies
may be subject to wider price fluctuations. In many instances, the securities of
smaller  companies  are  traded  over the  counter  and may not be traded in the
volume typical of a national securities exchange. Before you invest, please read
"Investment Policies, Risks and Limits."

- --------------------------------------------------------------------------------
PORTFOLIO MANAGEMENT
Robert P. Fetch,  Partner of Lord, Abbett & Co. ("Lord Abbett"),  Executive Vice
President and Portfolio Manager of the Fund, has been primarily  responsible for
the  day-to-day  management of the  Small-Cap  Fund since its  inception.  He is
assisted by Gregory M. Macosko, and may delegate management duties to other Lord
Abbett  employees.  Prior to  joining  Lord  Abbett,  Mr.  Fetch was a  Managing
Director of Prudential Investment Advisors.

INVESTOR EXPENSES
The expenses  shown below are based on historical  expenses  adjusted to reflect
current fees. Future expenses may be different than those shown.
- --------------------------------------------------------------------------------
 SMALL-CAP FUND                              Class Y
 Shareholder Transaction Expenses
- --------------------------------------------------------------------------------
 Maximum Sales Load on Purchases
 (as a % of offering price)                     None
- --------------------------------------------------------------------------------
 Deferred Sales Charge (See "Purchases")        None
- --------------------------------------------------------------------------------
 Annual Fund Operating Expenses(1) (as a % of average net assets)
- --------------------------------------------------------------------------------
 Management Fee (See "Our Management")          .75%
 12b-1 Fees                                     None
- --------------------------------------------------------------------------------
 Other Expenses (See "Our Management")          .11%
 Total Operating Expenses                       .86%

EXAMPLE
Assume an average  annual  return of 5% and no change in the level of  expenses.
For a $1,000  investment with all dividends and  distributions  reinvested,  you
would have paid the following  total  expenses  assuming you sold your shares at
the end of each time period indicated.
- --------------------------------------------------------------------------------
 Share Class                  1 year     3 years    5 years   10 years
- --------------------------------------------------------------------------------
 Class Y shares                  $9         $27        $48      $106

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

This example is for comparison and is not a  representation  of Small-Cap Fund's
actual expenses and returns, either past or present.

(1) For Class Y shares,  the annual operating expenses shown in the summary have
been restated from the Fund's  fiscal-year-end  amount to reflect  current fees.
The  foregoing  is provided  to give  investors  a better  understanding  of the
expenses that are incurred by an investment in each Fund.


                                       6
<PAGE>


FINANCIAL  HIGHLIGHTS The following  financial  highlights  are unaudited.  Call
800-821-5129 and ask for the Fund's 1998 semi-annual report.
<TABLE>
<CAPTION>

- --------------------------------------------------------------------------------
                                                      Small-Cap Fund
- --------------------------------------------------------------------------------
 Per Class Y Share Operating               For the Period December 30, 1997(a)
- --------------------------------------------------------------------------------
 Performance:                                        to May 31, 1998
- --------------------------------------------------------------------------------
<S>                                                      <C>   
 Net asset value, beginning of period                    $16.34
 Income from investment operations                  
- --------------------------------------------------------------------------------
  Net investment income                                    0.00(c)
  Net realized and unrealized                       
- --------------------------------------------------------------------------------
  gain on securities                                       1.06
 Total from investment operations                          1.06
- --------------------------------------------------------------------------------
 Net asset value, end of period                          $17.40
 Total Return(b)                                           6.49%
- --------------------------------------------------------------------------------
  Ratios to Average Net Assets(b)                   
  Expenses                                                 0.36%
- --------------------------------------------------------------------------------
  Net investment income                                    0.00%(c)
- --------------------------------------------------------------------------------
 Supplemental Data for all classes:                   Small-Cap Fund
- --------------------------------------------------------------------------------
 Net Assets, end of period (000)                        $657,889
 Portfolio turnover rate                                  25.58%
                                              
 (a)  Commencement of Operations.
 (b)  Not Annualized.
 (c)  Amount less than 0.01%.
      See Notes to Financial Statements.
</TABLE>


                                       7
<PAGE>


GROWTH OPPORTUNITIES FUND

- --------------------------------------------------------------------------------
HOW WE INVEST
Normally,  we invest  primarily in equity  securities  of  mid-sized  companies,
defined for this purpose as companies whose  outstanding  equity securities have
an  aggregate  market  value of  between  $1 billion  and $6  billion.  We favor
companies that show the potential for stronger than expected earnings or growth.
Under  normal  circumstances,  at least 65% of our total  assets will consist of
investments made in growth companies, determined at the time of purchase.

See "Investment Policies, Risks and Limits."


- --------------------------------------------------------------------------------
RISK FACTORS
The  value of your  investment  will  fluctuate  in  response  to  stock  market
movements.  The Fund employs other  investment  practices such as investments in
foreign   securities  and  other   securities,   that  could  adversely   affect
performance.

Before you invest, please read "Investment Poli-cies, Risks and Limits."

PORTFOLIO MANAGEMENT
Stephen J. McGruder, Partner of Lord Abbett, Executive Vice President and Senior
Portfolio  Manager  of  the  Fund,  is  primarily   responsible  for  day-to-day
management  of the Fund.  He joined Lord Abbett in 1995 and has over 29 years of
investment experience.

  Prior to joining Lord Abbett,  Mr.  McGruder  served since  October of 1988 as
Vice President of Wafra Investment Advisory Group, a private investment company.
Mr. McGruder is assisted by, and may delegate  management  duties to, other Lord
Abbett employees who may be Fund officers.

  When Mr. McGruder became the Senior Portfolio  Manager of the Fund on July 15,
1998, he introduced a growth style of investing to the Fund.  Under this method,
companies  are  favored  that  show  the  potential  for  stronger-than-expected
earnings growth. Gradually, as the opportunities present themselves, these kinds
of companies  will be favored in the selection  process.  Under the former value
style of investing  used to manage the Fund,  companies  were  selected  without
regard to current  income  under a process that sought to identify and invest in
undervalued securities.

INVESTOR EXPENSES
The expenses  shown below are based on historical  expenses  adjusted to reflect
current fees. Future expenses may be different than those shown.
- --------------------------------------------------------------------------------
 GROWTH OPPORTUNITIES FUND                     Class Y
 Shareholder Transaction Expenses
- --------------------------------------------------------------------------------
 Maximum Sales Load on Purchases
 (as a % of offering price)                     None
- --------------------------------------------------------------------------------
 Deferred Sales Charge (See "Purchases")        None
- --------------------------------------------------------------------------------
 Annual Fund Operating Expenses(1) (as a % of average net assets)
- --------------------------------------------------------------------------------
 Management Fee (See "Our Management")          .90%
 12b-1 Fees                 None
- --------------------------------------------------------------------------------
 Other Expenses (See "Our Management")          .28%
 Total Operating Expenses                      1.18%

EXAMPLE
Assume an average  annual  return of 5% and no change in the level of  expenses.
For a $1,000  investment with all dividends and  distributions  reinvested,  you
would have paid the following  total  expenses  assuming you sold your shares at
the end of each time period indicated.
- --------------------------------------------------------------------------------
 Share Class                   1 year      3 years
- --------------------------------------------------------------------------------
 Class Y shares                  $12         $37

You would pay the same expenses on the same  investment,  assuming you kept your
shares.  This example is for  comparison and is not a  representation  of Growth
Opportunities Fund's actual expenses and returns, either past or present.

(1) For Class Y shares,  the annual operating expenses shown in the summary have
been restated from the Fund's  fiscal-year-end  amount to reflect  current fees.
The  foregoing  is provided  to give  investors  a better  understanding  of the
expenses that are incurred by an investment in each Fund.


                                       8
<PAGE>


INTERNATIONAL FUND

- --------------------------------------------------------------------------------
HOW WE INVEST
Portfolio  investments will be made in equity securities of companies  domiciled
in developed  countries,  but investments  also may be made in the securities of
companies  domiciled in developing  countries.  Equity securities include common
and  preferred  stocks,  convertible  securities,  and  rights and  warrants  to
purchase common stocks.  Under normal  circumstances,  at least 80% of the total
assets of the Fund will be invested in such equity securities of companies which
are domiciled in at least three different  countries  outside the United States.
The Fund currently  intends to diversify  investments  among countries to reduce
currency  risk.  Although the Fund will  typically  hold a number of diversified
securities,  it does entail  above-average  investment risk in comparison to the
U.S. stock market.

  The Fund may temporarily  reduce its equity holdings for defensive purposes in
response to adverse  market  conditions  and invest in domestic,  Eurodollar and
foreign short-term money market instruments.

See "Investment Policies, Risks and Limits."

RISK FACTORS
Although the International Fund intends to invest primarily in equity securities
of companies with market  capitalization of less than $1 billion listed on stock
exchanges,  it may also invest in equity  securities of such companies traded in
over-the-counter markets, as well as large and middle capitalization securities.
Small  capitalization  securities  involve greater risk and the markets for such
securities may be more volatile and less liquid than those of larger securities.
Securities of companies in developing  countries may pose liquidity risks. For a
description  of  special   considerations  and  certain  risks  associated  with
investments in foreign issuers, before you invest see section headed "Investment
Policies, Risks and Limits."

- --------------------------------------------------------------------------------
PORTFOLIO MANAGEMENT
Christopher  Taylor serves as Portfolio Manager of the  International  Fund. Mr.
Taylor is Managing  Director of  Fuji-Lord  Abbett  International,  Limited (the
"Sub-Adviser").  He has been with the Sub-Adviser and its predecessor since 1987
and has 15 years of investment experience.

INVESTOR EXPENSES
The expenses  shown below are based on historical  expenses  adjusted to reflect
current fees. Future expenses may be different than those shown.

- --------------------------------------------------------------------------------
INTERNATIONAL FUND                           Class Y
 Shareholder Transaction Expenses
- --------------------------------------------------------------------------------
 Maximum Sales Load on Purchases
 (as a % of offering price)                     None
- --------------------------------------------------------------------------------
 Deferred Sales Charge (See "Purchases")        None
- --------------------------------------------------------------------------------
 Annual Fund Operating Expenses(1) (as a % of average net assets)
- --------------------------------------------------------------------------------
 Management Fee (See "Our Management")          .75%
 12b-1 Fees                                     None
- --------------------------------------------------------------------------------
 Other Expenses (See "Our Management")          .43%
 Total Operating Expenses                      1.18%


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

- --------------------------------------------------------------------------------
 Share Class                  1 year    3 years    5 years   10 years
- --------------------------------------------------------------------------------
 Class Y shares                 $12       $37        $65       $143

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

This example is for  comparison  and is not a  representation  of  International
Fund's actual expenses and returns, either past or present.

(1) For Class Y shares,  the annual operating expenses shown in the summary have
been restated from the Fund's  fiscal-year-end  amount to reflect  current fees.
The  foregoing  is provided  to give  investors  a better  understanding  of the
expenses that are incurred by an investment in each Fund.


                                       9
<PAGE>


FINANCIAL  HIGHLIGHTS The following  financial  highlights  are unaudited.  Call
800-821-5129 and ask for the Fund's 1998 semi-annual report.
<TABLE>
<CAPTION>

- --------------------------------------------------------------------------------
                                                    International Fund
- --------------------------------------------------------------------------------
 Per Class Y Share Operating                 For the Period December 30, 1997(a)
- --------------------------------------------------------------------------------
 Performance:                                       to April 30, 1998
- --------------------------------------------------------------------------------
<S>                                                     <C>   
 Net asset value, beginning of period                   $11.28
 Income from investment operations           
- --------------------------------------------------------------------------------
  Net investment income                                   0.09
  Net realized and unrealized                
- --------------------------------------------------------------------------------
  gain on securities                                      3.23
 Total from investment operations                         3.32
- --------------------------------------------------------------------------------
 Net asset value, end of period                         $14.60
 Total Return(b)                                         28.90%
- --------------------------------------------------------------------------------
  Ratios to Average Net Assets(b)            
  Expenses                                                0.33%
- --------------------------------------------------------------------------------
  Net investment income                                   0.60%
- --------------------------------------------------------------------------------
 Supplemental Data for all classes:                 International Fund
- --------------------------------------------------------------------------------
 Net Assets, end of period (000)                        $90,153
 Portfolio turnover rate                                 11.14%
                                      
 (a)  Commencement of Operations.
 (b)  Not Annualized.
 (c)  Amount less than 0.01%.
      See Notes to Financial Statements.
</TABLE>


                                       10
<PAGE>


HIGH YIELD FUND

- --------------------------------------------------------------------------------
HOW WE INVEST
Normally,  we invest in lower-rated debt securities,  which entail greater risks
than  investments in higher-rated  debt  securities.  The former are referred to
colloquially as "junk bonds."

  We believe that a high total return (current income and capital  appreciation)
may be derived from an actively managed,  diversified security portfolio.  Under
normal circumstances,  we invest at least 65% of our total assets in lower-rated
debt  securities,  some of  which  are  convertible  into  common  stock or have
warrants to purchase common stock.

  We seek unusual values,  particularly in lower-rated debt securities,  some of
which are  convertible  into common stocks or have  warrants to purchase  common
stocks.  Higher yield on debt  securities  can occur during periods of inflation
when the demand for borrowed funds is high. Also, buying  lower-rated bonds when
the credit risk is above average but, we think, likely to decrease, can generate
higher yields.

See "Investment Policies, Risks and Limits."

- --------------------------------------------------------------------------------
RISK FACTORS
The lower-rated  bonds in which the Fund invests involve risks that interest and
principal  payments  may not be made.  Some  issuers may default as to principal
and/or interest payments subsequent to our purchase of their securities. Through
portfolio  diversification,  good  credit  analysis  and  attention  to  current
developments  and trends in interest rates and economic  conditions,  investment
risk can be reduced,  although there is no assurance that losses will not occur.
In addition,  the value of your  investment will change as the general levels of
interest rates  fluctuate.  When interest  rates decline,  share value may rise.
When  interest  rates rise,  share value may  decline.  The Fund  employs  other
investment  practices,  such as  investments  in  foreign  securities,  illiquid
securities and other securities, that could adversely affect performance. Before
you invest, please read "Investment Policies, Risks and Limits."

- --------------------------------------------------------------------------------
PORTFOLIO MANAGEMENT
Christopher  J. Towle,  Partner of Lord Abbett,  Executive  Vice  President  and
Co-Portfolio  Manager of the Fund, is primarily  responsible  for the day-to-day
management  of the Fund.  Mr. Towle has been with Lord Abbett since 1988 and has
over 17  years  of  investment  experience.Mr.  Towle is  assisted  by,  and may
delegate  management  duties to,  other Lord  Abbett  employees  who may be Fund
officers.

  Michael  Goldstein  serves as Co-Portfolio  Manager of the Fund. Mr. Goldstein
has been with Lord Abbett since April 1997.  Prior to Joining  Lord Abbett,  Mr.
Goldstein  was a bond trader for Credit Suisse BEA  Associates  from August 1992
through April 1997.

INVESTOR EXPENSES
The expenses  shown below are based on historical  expenses  adjusted to reflect
current fees. Future expenses may be different than those shown.
- --------------------------------------------------------------------------------
 High yield fund                              Class Y
 Shareholder Transaction Expenses
- --------------------------------------------------------------------------------
 Maximum Sales Load on Purchases
 (as a % of offering price)                     None
- --------------------------------------------------------------------------------
 Deferred Sales Charge (See "Purchases")        None
- --------------------------------------------------------------------------------
 Annual Fund Operating Expenses(1) (as a % of average net assets)
- --------------------------------------------------------------------------------
 Management Fee (See "Our Management")         0.60%
 12b-1 Fees                                     None
- --------------------------------------------------------------------------------
 Other Expenses (See "Our Management")         0.25%
 Total Operating Expenses                      0.85%


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

- --------------------------------------------------------------------------------
 Share Class                   1 year     3 years
- --------------------------------------------------------------------------------
 Class Y shares                  $9         $27

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

This example is for  comparison and is not a  representation  of High Yield Fund
actual expenses and returns, either past or present.

(1) For Class Y shares,  the annual operating expenses shown in the summary have
been restated from the Fund's  fiscal-year-end  amount to reflect  current fees.
The  foregoing  is provided  to give  investors  a better  understanding  of the
expenses that are incurred by an investment in each Fund.


                                       11
<PAGE>


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 $20 million that were not introduced to Lord
Abbett by persons  associated with a broker or dealer primarily  involved in the
retail security business.  Additional payments may be made by Lord Abbett out of
its own resources with respect to certain of these sales.

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 Fund you selected (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 a 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 800  -821-5129  Ext.  34028,
Institutional  Trade  Dept.,  to set up  your  account  and  to  arrange  a wire
transaction.  Wire to: United Missouri Bank of Kansas City, N.A., Routing number
- - 101000695, bank account number: 9878002611, FBO: (account name) and (your Lord
Abbett  account  number).  Specify the complete name of the fund 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,  bank account  number:9878002611,  FBO:  (account  name) and
(your Lord Abbett account number). Specify the complete name of the fund of your
choice, note Class Y shares and include your account number and your name.

- --------------------------------------------------------------------------------
SHAREHOLDER SERVICES

We offer the following shareholder services:

  TELEPHONE  EXCHANGE  PRIVILEGE:  Class Y shares  may be  exchanged  without  a
service charge for Class Y shares of any eligible Lord Abbett-sponsored fund.

You or YOUR INVESTMENT PROFESSIONAL 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  ex-changes.  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 

                                       12
<PAGE>

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 Telephone 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 Fund you  selected  (P.O.  Box
419100, Kansas City, Missouri 64141; 800-821-5129).

- --------------------------------------------------------------------------------
REDEMPTIONS

To obtain the proceeds of an expedited redemption,  you can telephone your Fund.
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,  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 the Fund you  selected  (P.O.  Box
419100, Kansas City, Missouri 64141) with signature(s) and any legal capacity of
the  signer(s)   guaranteed  by  an  eligible   guarantor   accompanied  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  business
days.  Each Fund may suspend the right to redeem  shares for not more than three
days (or longer under unusual circumstances as permitted by Federal law). If you
have  purchased a Fund's  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.  In order to  receive  funds by wire,  our  servicing  agent must have the
wiring  instruction  on file.  To verify  that this  feature  is in place,  call
800-821-5129 Ext. 34028,  Institutional  Trade Dept. Minimum wire: $1,000.  Your
wire  redemption  request  must be received by your 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.  Redemp-tions  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.

- --------------------------------------------------------------------------------
DIVIDENDS AND CAPITAL GAINS

DIVIDENDS/CAPITAL GAINS DISTRIBUTIONS.  Dividends from net investment income, if
any,  are  expected  to be  paid in  February,  May,  August  and  November  for
Affiliated  Fund. A  supplemental  dividend  may also be paid in  December.  For
Small-Cap Fund, Growth  Opportunities Fund and International Fund, payments will
be made annually; High Yield Fund,  distributions will be paid monthly. A second
distribution may be made in order to comply with Federal income tax requirements
that a certain percentage of capital gains be distributed during the year.

CAPITAL GAINS  DISTRIBUTIONS.  Any capital gains  distribution is expected to be
made annually and may be taken in cash or reinvested.  Distributions  of any net
long-term  capital gains will be taxable to a shareholder  as long-term  capital
gains regardless of how long the shareholder has held the shares. Under recently
enacted legislation,  the maximum tax rate on long-term capital gains for a U.S.
individual, estate or trust is reduced to 20% for distributions derived from the
sale of assets held by the Fund for more than 12 months.  (If the taxpayer is in
the 15% tax  bracket,  the  rate is  10%.)  Any  gains  realized  on the  Fund's
transactions  in options and financial  futures will be treated as taxable long-
or short-term capital gains.

DIVIDENDS/CAPITAL  GAINS  RECEIPT  OR  REINVESTMENT.  If you  elect  to  receive
dividends  or  capital  gains in cash,  a check will be mailed to you as soon as
possible after the  reinvestment  date. If you arrange for direct deposit,  your
payment will be  electronically

                                       13
<PAGE>

transmitted  to your bank account  within one day after the payable  date.  Most
investors reinvest their dividends and capital gains. If you choose this option,
or if  you do  not  indicate  any  choice,  your  dividends  and  capital  gains
distributions will be automatically reinvested in additional shares.

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

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

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


- --------------------------------------------------------------------------------
OUR MANAGEMENT
Our business is managed by our officers on a day-to-day  basis under the overall
direction  of our Board of  Directors/Trustees  with the advice of Lord  Abbett.
Each Fund employs  Lord Abbett as  investment  manager  pursuant to a management
Agreement.  Lord  Abbett has been an  investment  manager  for over 69 years and
currently  manages  approximately  $28  billion in a family of mutual  funds and
other advisory accounts. Under the Management Agreement, Lord Abbett provides us
with investment management services and personnel,  pays the remuneration of our
officers and of our Directors/Trustees  affiliated withLord 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
portfolios and certain other costs.  Lord Abbett  provides  similar  services to
over  thirty-four  other  mutual  fund  portfolios  having  various   investment
objectives and also advises other investment clients.

  Each Fund pays Lord Abbett a monthly fee based on average daily net assets for
each month.  In addition,  each Fund pays all expenses not expressly  assumed by
Lord  Abbett.  For the  fiscal  year ended  October  31,  1998,  the fee paid by
Affiliated  Fund to Lord Abbett as a percentage  of average daily net assets was
at the annual rate of .32 of 1%. For the fiscal year ended  November  30,  1997,
the fee paid by Small-Cap  Fund to Lord Abbett as a percentage  of average daily
net  assets  was at the  annual  rate of .75 of 1%.  For the  fiscal  year ended
November 30, 1997,  Growth  Opportunities  Fund's fee to Lord Abbett was waived.
The  International  Fund, for the fiscal year ended October 31, 1998,  paid Lord
Abbett as a percentage of daily net assets at the annual rate of .75 of 1%.

  The services  provided to the Fund and its  shareholders by Lord Abbett,  Lord
Abbett Distributor, the Fund's transfer agent and the Fund's custodian depend on
the proper  functioning  of their  computer  systems and those of their  outside
service providers.  Many computer systems, and many imbedded microprocessors now
in use cannot distinguish  between the year 2000 and the year 1900, an inability
that could disrupt the services  provided to the Fund. Lord Abbett,  Lord Abbett
Distributor, the Fund's transfer agent and the Fund's custodian all have advised
the Fund that they have been  actively  working  on  changes  to their  computer
systems to prepare for the year 2000 and expect that their systems, and those of
their outside service providers,  will be adapted in time. However,  because the
year 2000 problem is unprecedented,  there can be no assurance that they will be
successful.  Neither can there be any assurance  that their services will not be
impaired by interactions  with other computer systems that have not been adapted
for the year 2000.

  In addition,  it is possible that the markets for securities in which the Fund
invests may be detrimentally  affected by computer and  microprocessor  failures
throughout the financial  services  industry  beginning  January 1, 2000.  Also,
corporate and  governmental  data  processing  errors may result in problems for
individual companies and may create overall economic uncertainties. Accordingly,
the Fund's investments may be adversely affected.

  The Funds will not hold annual meetings of shareholders  unless required to by
the  Investment  Company  Act of 1940,  the Board of  Directors/Trustees  or the
shareholders  with one-quarter of the outstanding stock of each Fund entitled to
vote.  See the  Statement  of  Additional  Information  for  each  Fund for more
details.

THE FUNDS. Lord Abbett Affiliated Fund, Inc. a diver-

                                       14
<PAGE>

  sified open-end management investment company, was incorporated under Maryland
law in  1975;  Small-Cap  Fund and  Growth  Opportunities  Fund are  diversified
separate  series of Lord Abbett  Research  Fund,  Inc., a  diversified  open-end
management investment company which was incorporated under Maryland law in 1992;
International  Fund, a  diversified  separate  series of Lord Abbett  Securities
Trust, a diversified open-end management  investment company which was organized
as a Delaware Business Trust in 1993. High Yield Fund is a diversified  separate
series of Lord  Abbett  Investment  Trust,  a  diversified  open-end  management
investment company, which was organized as a Delaware Business Trust in 1993.

- --------------------------------------------------------------------------------
FUND PERFORMANCE

ABOUT THE  AFFILIATED  FUND.  The Fund  completed its fiscal year on October 31,
1997.  During this time, it enjoyed returns above historical  averages due to an
environment of solid economic growth,  low inflation and strong corporate profit
gains. Throughout most of the period, the portfolio has been evenly diversified,
but with a moderate  overweighting  in financial  stocks.  Furthermore,  we have
shifted our focus within this group of stocks towards insurance companies, which
are benefiting from industry-wide consolidation and cost-cutting efforts.

ABOUT THE  SMALL-CAP  FUND.  The Fund  completed its fiscal year on November 30,
1997. Its exceptional performance over the past fiscal year can be attributed to
select  industrial  and  technology  stocks in the  portfolio.  During the year,
valuations of small-cap stocks were favorable,  providing many  opportunities in
the  marketplace to purchase  companies with  performance  characteristics  that
drive toward  consistent,  strong  performance with low volatility.  We look for
companies with long operating  histories,  strong market  positions within their
industry and financial strength.  These  characteristics help to reduce business
risk and protect  companies  form both economic and  competitive  pressures.  We
continue  to seek  issues  with solid  fundamental  prospects  in the  small-cap
universe to add value to the Fund.

ABOUT THE GROWTH  OPPORTUNITIES  FUND  (FORMERLY,  LORD ABBETT  RESEARCH  FUND -
MID-CAP  SERIES).  The Fund completed its fiscal year on November 30, 1997. Over
the  past  year,  the  stock  market  experienced   several  corrections  before
rebounding  to new heights.  This  occurred  against a background  of surprising
strength in the  economy,  concerns of  inflation  and a volatile  interest-rate
environment.  The  positive  performance  of your Fund over the past year can be
attributed to the use of the best ideas  generated by the Fund's  research team.
Specifically,  individual issues in the technology, finance and consumer sectors
proved to be rewarding.

ABOUT THE INTERNATIONAL  FUND. The Fund completed its fiscal year on October 31,
1997.  It enjoyed a strong  performance  over the past year due in large part to
gains made by  industrial  companies  which are domiciled in Germany and Canada.
One company that helped portfolio performance during the year manufactures "zero
emission"  hydrogen  powered fuel cells that  produce  water and oxygen as waste
materials.  Another is the world's largest  supplier of database  software tools
used for information integration. These are some examples of what we believe are
industry leaders. In addition,  due to our selective  investment process, we had
minimal  exposure to companies  located in the emerging and Far Eastern  markets
that fell sharply during the period.

ABOUT THE HIGH YIELD FUND.  This Fund was effective as of November 30, 1998 and,
consequently, has no reportable performance history at this time.

- --------------------------------------------------------------------------------
INVESTMENT POLICIES, RISKS AND LIMITS
The Funds are permitted to utilize,  within limits  established  by the Board of
Directors,   the  following  investment  policies,   in  an  effort  to  enhance
performance.  These policies have risks associated with them.  However,  certain
practices  may  reduce  these  risks.  To the  extent  the Funds  utilize  these
policies, overall performance may be positively or negatively affected.

POLICIES COMMON TO ALL FUNDS
SECURITIES  LENDING:  This entails lending securities to financial  institutions
which provide continuous  collateral equal to the market value of the securities
loaned.

  RISK:  Delay in recovery  of  collateral  and loss should the  borrower of the
security fail financially.

  LIMIT:  Loans,  in the  aggregate,  may not exceed 30% of  Affiliated  Fund's,
International  Fund's,  and High Yield Fund's total assets,  and 5% of Small-Cap

                                       15
<PAGE>

Fund's and Growth Opportunities Fund's total assets.

ILLIQUID  SECURITIES.  These  securities are not traded on the open market.  May
include illiquid Rule 144A securities.

  RISK:  Certain  securities  may be difficult or impossible to sell at the time
and price the seller would like.

  LIMIT:  Each Fund may invest up to 15% of its assets in  illiquid  securities.
Securities  determined by the Board of Directors to be liquid are not subject to
this limitation.

BORROWING:  Each Fund may borrow money.

  RISK: Depending on the circumstances,  the interest paid on borrowed money may
reduce a Fund's return.

  LIMIT:  Not in  excess  of 33 1/3%  of  total  assets  (including  the  amount
borrowed),  and then only as a temporary  measure for extraordinary or emergency
purposes.  Up to an  additional  5% of total assets are  available for temporary
purposes.  Each Fund may obtain such  short-term  credit as may be necessary for
the clearance of purchases and sales of portfolio securities.

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

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

  LIMIT:  Affiliated Fund may invest up to 10% of its assets, Small Cap Fund and
Growth  Opportunities Fund up to 35% of their net assets,  International Fund at
least 80%, and High Yield Fund up to 20% of assets at the time of  investment in
foreign securities (of the type described herein).

DIVERSIFICATION.  Generally, the diversification rules under Subchapter M of the
Internal  Revenue  Code  require  that at the end of each quarter of the taxable
year,  (a) not more than 25% of each Fund's  total assets be invested in any one
issuer and (b) with respect to 50% of each Fund's total assets,  no more than 5%
of each  Fund's  total  assets  be  invested  in any  one  issuer,  except  U.S.
Government securities. Each Fund intends to meet these rules.

  Each Fund, as a "diversified" Fund, is prohibited,  with respect to 75% of the
value of its total assets,  from  investing  more than 5% of its total assets in
securities of any one issuer other than U.S. Government securities.

  When the assets and revenues of a sovereign state's political  subdivision are
separate from those of the sovereign state government  creating the subdivision,
and the security is backed only by the assets and  revenues of the  subdivision,
the  subdivision  would be considered the sole issuer.  Similarly,  if a revenue
bond is backed only by the assets and revenues of a  nongovernmental  user, then
such user would be considered the sole issuer.

POLICIES COMMON TO AFFILIATED FUND, SMALL-CAP 
FUND, GROWTH OPPORTUNITIES FUND AND 
INTERNATIONAL FUND.
SELLING COVERED CALL OPTIONS:  A covered call option on stock gives the buyer of
the option,  upon payment of a premium to the seller (writer) of the option, the
right to call upon the writer to deliver a specified number of shares of a stock
owned by the writer on or before a fixed date at a predetermined price.

  RISK:  Although each Fund receives income based on receipt of the premium,  it
gives up participation in the appreciation of the stock above the  predetermined
price if it is called away by the buyer.

  LIMIT:  Each Fund may write  covered  call  options  on  securities  having an
aggregate market value not to exceed 10% of Affiliated  Fund's gross assets,  5%
of  Small-Cap  Fund's gross  assets,  5% of Growth  Oppor-tunities  Fund's gross
assets and International Fund's net assets.

POLICIES COMMON TO AFFILIATED  FUND, 
SMALL-CAP FUND, HIGH YIELD FUND AND 
GROWTH
OPPORTUNITIES FUND.
RULE 144A  SECURITIES:  These  securities  are determined by the Directors to be
liquid  pursuant to Securities and Exchange  Commission  Rule 144A (the "Rule").
Under the Rule, a qualifying  unregistered security may be resold to a qualified
institutional  buyer  without  registration  and  without  regard to whether the
seller originally purchased the security for investment.

  RISK:  Investments in Rule 144A securities  initially  determined to be liquid
could  have the effect of  diminishing  the level of a Fund's  liquidity  during
periods of decreased market interest in such securities.

                                       16
<PAGE>

POLICIES COMMON TO SMALL-CAP FUND, GROWTH  OPPORTUNITIES FUND, AND INTERNATIONAL
FUND
WHEN-ISSUED  OR DELAYED  DELIVERY  TRANSACTIONS:  Such  transactions  arise when
securities  are  purchased or sold by a Fund with  payment and  delivery  taking
place  as much as a month or more in the  future  in  order  to  secure  what is
considered  to be an  advantageous  price  and  yield to the Fund at the time of
entering other liquid  high-grade  debt  obligations  having a value equal to or
greater  than the Fund's  purchase  commitments;  the  custodian  will  likewise
designate as segregated those securities sold on a delayed delivery basis.

  RISK:  The  securities so purchased are subject to market  fluctuation  and no
interest  accrues  to the  purchaser  during  the period  between  purchase  and
settlement.  At the time of delivery of the  securities the value may be more or
less than the  purchase  price and an increase in the  percentage  of the Fund's
assets  committed  to the purchase of  securities  on a  when-issued  or delayed
delivery basis may increase the volatility of the Fund's net asset value. Rights
and Warrants: The Funds may hold or sell any property or securities which it may
obtain  through  the  exercise  of  conversion  rights  or  warrants.  The  term
"warrants"  includes  warrants  which are not listed on the New York or American
Stock Exchanges.

  LIMIT: Growth  Opportunities Fund has no present intention to commit more than
5% of its gross assets to rights and  warrants,  Small-Cap  Fund 5% of its gross
assets, and International Fund 5% of its assets.

REPURCHASE  AGREEMENTS:  The Funds  may,  on  occasion,  enter  into  repurchase
agreements  whereby the seller of a security  agrees to repurchase that security
at a mutually  agreed-upon  time and price.  The period of  maturity  is usually
quite short,  possibly  overnight  or a few days,  although it may extend over a
number  of  months.  The  resale  price  is in  excess  of the  purchase  price,
reflecting  an  agreed-upon  rate of return  effective  for the period of time a
Fund's money is invested in the security. Each Fund's repurchase agreements will
at all times be fully collateralized in an amount at least equal to the purchase
price,  including  accrued  interest  earned on the underlying  securities.  The
instruments  held as  collateral  are  valued  daily,  and if the  value  of the
instruments declines, each Fund's will require additional collateral.

  RISK:  If the seller  defaults  and the value of the  collateral  securing the
repurchase agreement declines, each Fund may incur a loss.

FORWARD  FOREIGN  CURRENCY  CONTRACTS:  The Funds may utilize a forward  foreign
currency  contract  which  involves an obligation to purchase or sell a specific
amount of a  currency  at a set price on a future  date.  A Fund may enter  into
forward foreign currency contracts in primarily two circumstances. First, when a
Fund  desires to "lock in" the U.S.  dollar price of the  security,  by entering
into a forward  contract  for the  purchase  or sale of the  amount  of  foreign
currency involved in the underlying security transaction, a Fund will be able to
protect  against  a  possible  loss  resulting  from an  adverse  change  in the
relationship between the U.S. dollar and the subject foreign currency during the
period between the date of purchase or sale and the date of settlement.

  Second,  when Fund  management  believes  that the  currency  of a  particular
foreign country may suffer a decline against the U.S.  dollar,  a Fund may enter
into a forward contract to sell the amount of foreign currency approximating the
value of some or all of the  portfolio  securities  denominated  in such foreign
currency  or, in the  alternative,  may use a  cross-currency-hedging  technique
whereby  it  enters  into  such a  forward  contract  to sell  another  currency
(obtained  in exchange for the currency in which the  portfolio  securities  are
denominated  if such  securities  are sold)  which it  expects  to  decline in a
similar manner.

  RISK: Precise matching of the forward contract and the value of the securities
involved will generally not be possible.

CURRENCY PUT AND CALL OPTIONS:  The International  Fund may transact in currency
put and call options on U.S. exchanges or U.S.  over-the-counter markets ("OTC")
to protect the dollar  against  foreign  currency  exposure.  Small-Cap Fund and
Growth  Opportunities  Fund may purchase  foreign currency put options and write
foreign currency call options on U.S. exchanges or U.S. over-the-counter markets
("OTC"). A put option gives a Fund, upon payment of a premium, the right to sell
a currency at the exercise  price until the  expiration of the option and serves
to insure against adverse  currency price movements in the underlying  portfolio
assets denominated in that currency.

  A foreign  currency call option  written by a Fund 

                                       17
<PAGE>

gives the  purchaser,  upon
payment  of a  premium,  the right to  purchase  from a Fund a  currency  at the
exercise  price until the  expiration of the option.  Each Fund may write a call
option on a foreign currency only in conjunction with a purchase of a put option
on that currency  ("Cross  Hedging").  Such a strategy is designed to reduce the
cost  of  downside  currency   protection  by  limiting  currency   appreciation
potential.

  RISK:  OTC options are generally  less liquid and involve  issuer credit risk.
The staff of the SEC has taken the position  that  purchased OTC options and the
assets used as "cover" for written OTC options are illiquid  securities unless a
Fund and the counterparty have provided for the Fund, at the Fund's election, to
unwind the OTC option.  The exercise of such an option  ordinarily would involve
the  payment  by a Fund of an amount  designed  to  reflect  the  counterparty's
economic  loss from an early  termination,  but does allow the Fund to treat the
assets used as "cover" as "liquid."

  LIMIT: The premiums paid for such foreign currency put options will not exceed
5% of the net assets of a Fund.  Unlisted options,  together with other illiquid
securities, may comprise no more than 15% of a Fund's net assets. The face value
of such currency call option writing or cross-hedging  may not exceed 90% of the
value of the  securities  denominated in such currency (a) invested in by a Fund
to cover such call writing or (b) to be crossed.

  The Funds will segregate cash or permitted liquid  securities in an amount not
less than  that  required  by SEC  Release  10666 and SEC staff  interpretations
thereof with respect to assets  committed to (a) currency put and call  options,
(b) forward  foreign  currency  contracts,  and (c) cross hedges entered into by
each Fund. If the value of the securities  segregated declines,  additional cash
or permitted securities will be added on a daily basis (i.e., marked to market),
so that that  segregated  amount will not be less than the amount of each Fund's
commitments with respect to such options, forward foreign currency contracts and
cross hedges.

POLICIES COMMON TO SMALL-CAP fund, GROWTH  OPPORTUNITIES  FUND AND INTERNATIONAL
FUND
CLOSED-END INVESTMENT COMPANIES: The Funds may invest in closed-end investment
companies.

  RISK:  Shares of such  investment  companies  sometimes trade at a discount or
premium in  relation to their net asset  value and there may be  duplication  of
fees,  for  example,  to the extent  that a Fund and the  closed-end  investment
company both charge a management fee.

  LIMIT:  Except for  International  Fund which has no limit, no more than 5% of
the  gross  assets  of  each  Fund  may be  invested  in  closed-end  investment
companies.

POLICIES COMMON TO GROWTH OPPORTUNITIES FUND AND INTERNATIONAL FUND
FINANCIAL  FUTURES:  A  financial  futures  transaction  is  an  exchange-traded
contract  to  buy  or  sell a  standard  quantity  and  quality  of a  financial
instrument or index at a specific  future date and price.  Each Fund may deal in
financial futures  transactions with respect to the type of securities described
for it,  herein,  including  indices  of such  securities  and  options  on such
financial futures and indices.

  RISK: The price  behavior of the futures  contract may not correlate with that
of the item being hedged.

  LIMIT:  Each  Fund will not  enter  into any  futures  contracts,  or  options
thereon,  if the  aggregate  market value of the  securities  covered by futures
contracts  plus  options  on such  financial  futures  exceeds  50% of its total
assets.

POLICIES RELATING TO SMALL-CAP FUND AND GROWTH OPPORTUNITIES FUND
OPTIONS TRANSACTIONS: The Funds may purchase and write (i.e., sell) put and call
options  on equity  securities  or stock  indices  that are  traded on  national
securities exchanges.

  A put  option  on  equity  securities  gives the  purchaser,  in return  for a
premium,  the right,  for a  specified  period of time,  to sell the  securities
subject to the option to the writer of the put at the specified  exercise price.
The writer of the put option,  in return for the  premium,  has the  obligation,
upon exercise of the option, to acquire the securities  underlying the option at
the exercise price.

  A call  option  on equity  securities  gives the  purchaser,  in return  for a
premium  paid,  the  right  for a  specified  period  of  time to  purchase  the
securities  subject to the option at a specified price (the "exercise  price" or

                                       18
<PAGE>

"strike price"). The writer of a call option, in return for the premium, has the
obligation, upon exercise of the option, to deliver, depending upon the terms of
the option contract,  the underlying securities to the purchaser upon receipt of
the exercise price.

  Options on stock  indices are similar to options on equity  securities  except
that,  rather  than the right to take or make  delivery  of stock at a specified
price,  an option on a stock index  gives the holder the right,  in return for a
premium paid, to receive,  upon exercise of the option, an amount of cash if the
closing level of the stock index upon which the option is based is greater than,
in the case of a call, or less than, in the case of a put, the exercise price of
the option. The writer of an index option, in return for a premium, is obligated
to pay the amount of cash due upon exercise of the option.

  RISK:  Each Fund, as the writer of a put option,  might therefore be obligated
to purchase underlying securities for more than their current market value. When
a Fund  writes  a call  option,  it  gives  up the  potential  for  gain  on the
underlying  securities in excess of the exercise  price of the option during the
period that the option is open.

  LIMIT:  The Funds may only write  covered put options to the extent that cover
for such options does not exceed 25% of the Fund's net assets. The Fund will not
purchase an option if, as a result of such purchase,  more than 20% of its total
assets  would be invested in premiums for such  options.  With respect to Growth
Opportunities  Fund,  provided they are traded on a national securities exchange
and used to increase the Fund's income and to provide greater flexibility in the
disposition of the Fund's portfolio securities,  the Fund may write covered call
options on securities  having an aggregate  market value not to exceed 5% of the
Fund's gross assets.

  Each Fund will write only "covered" options.  An option is covered if, so long
as the Fund is obligated under the option, it owns an offsetting position in the
underlying  securities or maintains  cash, U.S.  Government  securities or other
liquid high-grade debt obligations with a value sufficient at all times to cover
its obligations in a segregated account.

See  "Investment  Objective  and Policies --  Limitation on Purchase and Sale of
Stock  Options,  Options  on Stock  Indices  and  Stock  Index  Futures"  in the
Statement of Additional Information.

TEMPORARY  INVESTMENTS:  For temporary  defensive  purposes or to create reserve
purchasing power pending other investments, the Fund may invest in high-quality,
short-term debt obligations of banks, corporations or the U.S. Government of the
type normally  owned by a money market fund.  Neither an issuer's  ceasing to be
rated  investment  grade nor a rating  reduction  below that grade will  require
elimination of a bond from our portfolios.

POLICIES RELATING TO AFFILIATED FUND AND HIGH
YIELD FUND
HIGH YIELD DEBT SECURITIES: High yield debt securities or "junk bonds" are rated
BB/Ba or lower and  typically  pay a higher  yield  than  investment-grade  debt
securities.

  RISK: The market for lower-rated  bonds generally is less liquid than that for
higher-rated  bonds.  Market prices of lower-rated bonds may fluctuate more than
those of  higher-rated  bonds,  particularly  in times of  economic  change  and
stress.  In  addition,   because  the  market  for  lower-rated  corporate  debt
securities  has in past years  experienced  wide  fluctuations  in the values of
certain  of these  securities,  past  experience  may not  provide  an  accurate
indication  of the future  performance  of that  market or of the  frequency  of
default,  especially  during  periods of recession.  Objective  pricing data for
lower-rated bonds may be more limited than for higher-rated  bonds and valuation
of such  securities  may be more  difficult  and require  greater  reliance upon
judgment.  While the market for lower-rated bonds may be relatively  insensitive
to interest  rate changes,  the market prices of these bonds  structured as zero
coupon or  pay-in-kind  securities  may be affected to a greater  extent by such
changes  and thus may be more  volatile  than prices of  lower-rated  securities
paying interest periodically in cash.  Lower-rated bonds that are callable prior
to maturity  may be more  susceptible  to  refunding  during  periods of falling
interest rates, requiring replacement with lower-yielding securities.

  LIMIT:  Affiliated  Fund will not invest more than 5% of assets at the time of
investment in high-yield  debt  securities.  High Yield Fund has no limit on the
amount of  high-yield  securities  it will invest in; in no event will it invest
more than 10% of gross assets at the time of investment in debt securities which
are in default as to interest or principal.

                                       19
<PAGE>

POLICIES RELATING TO SMALL-CAP FUND ONLY
DEBT SECURITIES: The Small-Cap Fund may engage in investing in straight bonds or
other debt securities, including lower rated, high-yield bonds.

  RISK:  When interest rates rise the value of debt  securities tend to fall and
when interest rates fall the value of debt  securities  tend to rise. The longer
the maturity of a debt security, the more this volatility tends to occur.

  LIMIT:  The Small-Cap  Fund will not invest more than 5% of its assets (at the
time of investment) in lower rated (BB/Ba or lower), high-yield bonds.

STOCK INDEX FUTURES: A stock index futures contract is an agreement in which one
party agrees to deliver to another an amount of cash equal to a specific  dollar
amount times the  difference  between a specific stock index at the close of the
last trading day of the  contract and the price at which the  agreement is made.
No physical delivery of the underlying stocks in the index is made.

  RISK:  Participation  in the options or futures  markets  involves  investment
risks and  transaction  costs to which the  Small-Cap  Fund would not be subject
absent  the  use  of  these  strategies.  If  the  Small-Cap  Fund  management's
prediction of movement in the direction of the securities markets is inaccurate,
the adverse  consequences  to the Fund may leave it in a worse  position than if
such  strategies  were not used.  Risks inherent in the use of options and stock
index  futures  include:  (1)  dependence  on  management's  ability  to predict
correctly  movements in the direction of specific securities being hedged or the
movement  in stock  indices;  (2)  imperfect  correlation  between  the price of
options and stock index futures and options  thereon and movements in the prices
of the  securities  being  hedged;  (3) the fact that skills needed to use these
strategies are different from those needed to select portfolio  securities;  (4)
the possible absence of a liquid secondary market for any particular  instrument
at any time; (5) the possible need to defer closing out certain hedged positions
to avoid adverse tax consequences;  and (6) daily limits on price variance for a
futures  contract or related options  imposed by certain  futures  exchanges and
boards of trade may restrict  transactions  in such  securities  on a particular
day.

SHORT  SALES:  The Fund may make short sales of  securities  or maintain a short
position, provided that at all times when a short position is open the Fund owns
an  equal  amount  of  such  securities  or  securities   convertible   into  or
exchangeable,  without payment of any further consideration, for an equal amount
of the securities of the same issuer as the securities sold short (a "short sale
against-the-box").

  RISK:  There  may not  always be  perfect  correlation  between  a short  sale
against-the-box  and the deferral of realization of gain or loss for federal tax
purposes.

  LIMIT: Short sales will be made primarily to defer realization of gain or loss
for federal tax  purposes.  The Fund does not intend to have more than 5% of its
net assets  (determined  at the time of the short sale)  subject to "short sales
against-the-box").

POLICIES RELATING TO INTERNATIONAL FUND ONLY
INVESTMENT  FUNDS.  Some  emerging  countries  have  laws and  regulations  that
currently  preclude  direct  foreign  investment  in  the  securities  of  their
companies.  However,  indirect  foreign  investment  in the  securities  of such
countries is permitted  through  investment  funds which have been  specifically
authorized.  The Fund  may  invest  in these  investment  funds  subject  to the
provisions  of the  Investment  Company  Act of  1940,  as  amended,  and  other
applicable  restrictions  as discussed  herein or in the Statement of Additional
Information.

  RISK: If the Fund invests in such investment funds, shareholders will bear not
only their proportionate share of the expenses of the Fund (including  operating
expenses and the fees of Lord  Abbett),  but also will  indirectly  bear similar
expenses of the underlying investment funds.

  LIMIT:  Normally, the Fund may invest not more than 5% of its total assets.

DEPOSITORY  RECEIPTS.  The Fund  may  invest  in  American  Depository  Receipts
("ADRs"),  Global De-pository  Receipts ("GDRs"),  European Depository Re-ceipts
("EDRs") and other  Depository  Receipts  (which,  together with ADRs,  GDRs and
EDRs, are hereinafter collectively referred to as "Depository Receipts"), to the
extent that such  Depository  Receipts  become  available.  ADRs are securities,
typically issued by a U.S. financial institution (a "depository"), that evidence
ownership  interests in a security or a pool of  securities  issued by a foreign
issuer (the "underlying issuer") and 

                                       20
<PAGE>

deposited with the depository.  ADRs may be
established by a depository  without  participation  by the  underlying  issuer.
GDRs,  EDRs and other  types of  Depository  Receipts  are  typically  issued by
foreign depositories, although they may also be issued by U.S. depositories, and
evidence  ownership  interests  in a security  or pool of  securities  issued by
either  a  foreign  or  U.S.  corporation.  Generally,  Depository  Receipts  in
registered  form  are  designed  for  use  in the  U.S.  securities  market  and
Depository  Receipts in bearer form are designed for use in  securities  markets
outside the United  States.  The Fund may invest in  sponsored  and  unsponsored
Depository Receipts.  For purpose of the Fund's investment policies,  the Fund's
investments  in  Depository  Receipts  will be deemed to be  investments  in the
underlying securities.

POLICIES RELATING TO HIGH YIELD FUND ONLY
OPTIONS  AND  FINANCIAL  FUTURES  TRANSACTIONS:  The Fund may deal in options on
securities,  securities  indexes and financial futures  transactions,  including
options on  financial  futures to increase or decrease  its exposure to changing
securities prices or interest rates or for bona fide hedging purposes.

  An  option  is the  right of the Fund to buy or sell  securities  of a company
which was granted in exchange for an agreed upon price.

  A security  index is an index which  reflects  the market  price and number of
shares outstanding for the shares of the index.

  A financial  futures  transaction  is an exchange - traded  contract to buy or
sell a standard  quantity  and quality of a financial  instrument  or index at a
specific future date and price.

  RISK: The use of options and financial  futures to achieve a Fund's investment
objective  could result in a loss due to  unanticipated  market  conditions  and
could  increase the  volatility of the Fund.  These  transactions  may involve a
small investment of cash relative to the risks assumed.

  LIMIT:  The Fund may write (sell) covered call options and secured put options
on up to 25% of its  net  assets  and may  purchase  put and  call  options  and
purchase and sell futures contracts  provided that no more than 5% of its assets
(at the time of  purchase)  may be  invested  in  premiums  on such  options and
initial margin deposits on such futures contracts.

EQUITY SECURITIES: Securities which may include stocks and preferred stocks. The
common stocks represent an equity ownership interest in a corporation.

  RISK:  Equity  security  prices  fluctuate  based on  changes  in a  company's
financial condition and on overall market and economic conditions.

  LIMIT:  The Fund may not  invest  more that 20% of its total  assets in equity
securities.

OTHER  POLICIES.  We may hold or sell any  property or  securities  which we may
obtain  through the exercise of conversion  rights or warrants or as a result of
any reorganization,  recapitalization or liquidation  proceedings for any issuer
of  securities  owned  by us.  In no  event  will we  voluntarily  purchase  any
securities  other  than debt  securities,  if, at the time of such  purchase  or
acquisition,  the  value  of  the  property  and  securities,  other  than  debt
securities,  in our  portfolio  is  greater  than 35% of the  value of our gross
assets. A purchase or acquisition will not be considered  "voluntary" if made in
order to avoid loss in value of a conversion or other premium.

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

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


- --------------------------------------------------------------------------------
  THIS PROSPECTUS  DOES NOT CONSTITUTE AN OFFERING IN ANY  JURISDICTION IN WHICH
SUCH OFFER IS NOT  AUTHORIZED  OR IN WHICH THE PERSON  MAKING  SUCH OFFER IS NOT
QUALIFIED TO DO SO OR TO ANYONE TO WHOM IT IS UNLAWFUL TO MAKE SUCH OFFER.

  NO PERSON IS AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY REPRESENTATIONS
NOT CONTAINED IN THIS PROSPECTUS OR IN SUPPLEMENTAL SALES MATERIAL AUTHORIZED BY
THE  FUND  AND  NO  PERSON  IS  ENTITLED  TO  RELY  UPON  ANY   INFORMATION   OR
REPRESENTATION NOT CONTAINED HEREIN OR THEREIN.


                                                                  
<PAGE>
Lord, Abbett & Co.
Statement of Additional Information                           November  30, 1998
                           Lord Abbett Affiliated Fund
                           Lord Abbett Small-Cap Fund
                      Lord Abbett Growth Opportunities Fund
                         Lord Abbett International Fund
                           Lord Abbett High Yield Fund
- --------------------------------------------------------------------------------
This Statement of Additional  Information is not a prospectus.  A prospectus for
Class  Y  shares  of the  Funds  identified  below  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 30, 1998.  This  Statement of Additional
Information,  relating to Lord Abbett Affiliated Fund, Inc. ("Affiliated Fund");
Lord  Abbett   Small-Cap  Fund   ("Small-Cap   Fund")  and  Lord  Abbett  Growth
Opportunities  Fund ("Growth  Opportunities  Fund"),  both series of Lord Abbett
Research Fund,  Inc.; Lord Abbett  International  Fund  ("International  Fund"),
which is a series of Lord Abbett  Securities  Trust;  and Lord Abbett High Yield
Fund ("High Yield  Fund"),  which is a series of Lord Abbett  Investment  Trust,
each  individually  ("we" or the "Fund"),  collectively  (the  "Funds"),  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 of Additional  Information  relates to, and
should be read in conjunction with,  theProspectus  dated November 30, 1998 (the
"Prospectus").

Our Boards of Directors/Trustees have authority to create and classify shares in
separate series, without further action by shareholders.  To date, the Boards of
Directors/Trustees  have  authorized  four classes of shares for Small-Cap Fund,
Growth Opportunities Fund, International Fund and High Yield Fund (Class A, B, C
and Y), and five classes of shares for Affiliated Fund (Class A, B, C, Y and P).
The Board of a Fund will allocate a Fund's shares among its classes from time to
time.  All shares of a Fund 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  or series may be added to one or more of the Funds in the
future.  The  Investment  Company Act of 1940, as amended (the "Act"),  requires
that where more than one series exists for a Fund, each series must be preferred
over all  other  series in  respect  of assets  specifically  allocated  to such
series.

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 a 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 principal distribution contracts
and the election of directors from the separate voting requirements of the Rule.

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

TABLE OF CONTENTS                            PAGE
1. Investment Policies                       2
2. Directors (Trustees) and Officers         11
3. Investment Advisory and Other Services    16
4. Portfolio Transactions                    18
5. Purchases, Redemptions
and Shareholder Services                     19
6. Past Performance                          20
7. Taxes                                     21
8. Information About The Funds               22
9. Financial Statements                      22
   
<PAGE>
                                    1.
                               Investment Policies

FUNDAMENTAL  INVESTMENT  RESTRICTIONS.  Each Fund is  subject  to the  following
investment  restrictions which cannot be changed without approval of the holders
of a majority  of a Fund's  outstanding  shares.  Each Fund may not:  (1) borrow
money,  except  that (i) each Fund may  borrow  from  banks (as  defined  in the
Investment Company Act of 1940, as amended (the "Act")) in amounts up to 33 1/3%
of its total assets (including the amount  borrowed),  (ii) each Fund may borrow
up to an additional 5% of its total assets for  temporary  purposes,  (iii) each
Fund may obtain such short-term  credit as may be necessary for the clearance of
purchases  and sales of  portfolio  securities  and (iv) each Fund may  purchase
securities on margin to the extent  permitted by applicable  law; (2) pledge its
assets  (other  than to secure  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 each 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 each 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)
or commodities or commodity  contracts (except to the extent each 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 each  Fund,  buy
securities  of one issuer  representing  more than (i) 5% of each  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 changes 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,  each
Fund also is subject to the following non-fundamental  investment policies which
may be  changed  by the  Boards  of  Directors  (Trustees)  without  shareholder
approval. Each Fund may not: (1) borrow in excess of 33 1/3% of its total assets
(including  the  amount  borrowed),  and then only as a  temporary  measure  for
extraordinary  or  emergency  purposes;  (2) make short sales of  securities  or
maintain a short position except to the extent  permitted by applicable law; (3)
invest  knowingly more than 15% of its net assets (at the time of investment) in
illiquid securities, except for securities qualifying for resale under Rule 144A
of the  Securities  Act of 1933,  deemed to be liquid by the Boards of Directors
(Trustees);  (4)  invest in the  securities  of other  investment  companies  as
defined  under the Act, (in the case of the  International  Fund, as long as the
Fund is an underlying fund in a fund-of-funds  structure) 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 each 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 if more than
1/2 of 1% of the securities of such issuer are owned beneficially by one or more
of each Fund's  officers or directors  (trustees)  or by one or more partners or
members of the Fund's  underwriter or investment  adviser if these owners in the
aggregate own  beneficially  more than 5% of the securities of such issuer;  (7)
invest  in  warrants  if,  at the time of the  acquisition,  its  investment  in
warrants,  valued at the lower of cost or market, would exceed 5% of each Fund's
total  assets  (included  within such  limitation,  but not to exceed 2% of each
Fund's  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 other development  programs,  except that each Fund may invest
in  securities  issued by  companies  that engage in oil,  gas or other  mineral
exploration or other development  activities;  (9) write, purchase or sell puts,
calls,  straddles,  spreads  or  combinations  thereof,  except  to  the  extent
permitted in a Fund's  prospectus  and statement of additional  information,  as
they may be amended from time to time;  (10) buy from or sell to any of a Fund's
officers, directors (trustees), employees, or its investment adviser or any of a
Fund's officers,  directors  (trustees),  partners or employees,  any securities
other than  shares of a Fund;  (11) with  respect to  Affiliated  Fund,  pledge,
mortgage or hypothecate  its assets;  however,  this provision does not apply to
the grant of escrow receipts or the entry into other similar escrow arrangements
arising out of the writing of covered  call  options;  and (12) with  respect to
High Yield Fund,  invest more than 10%of the market value of its gross assets at
the time of investment in debt securities which are in default as to interest or
principal.
<PAGE>
For the year ended October 31, 1997,  Affiliated Fund's portfolio  turnover rate
was 46.41%  versus  47.06% for the prior year.  For the year ended  November 30,
1997, the Small-Cap  Fund's  portfolio  turnover rate was 45.24% and 110.09% for
the period December 13, 1997  (commencement of operations) to November 30, 1997.
For the period  December 13, 1996  (commencement  of  operations) to October 31,
1997, the International Fund's' portfolio turnover rate was 29.72%.

With respect to the Affiliated  Fund, it has no current  intention to do so, but
may invest in financial futures & options on financial futures.


INVESTMENT TECHNIQUES

LENDING  PORTFOLIO  SECURITIES  (Affiliated  Fund,  Growth  Opportunities  Fund,
International Fund,  Small-Cap Fund) The Funds may lend portfolio  securities to
registered  broker-dealers.  These loans may not exceed 30% of total assets. The
Funds'  loans  of  securities  will be  collateralized  by  cash  or  marketable
securities  issued or guaranteed by the U.S.  Government or its agencies  ("U.S.
Government  Securities")  or other  permissible  means.  The cash or instruments
collateralizing  the loans of  securities  will be maintained at all times in an
amount at least equal to the current market value of the loaned securities. From
time to time,  the Funds may allow to the borrower  and/or a third party that is
not affiliated with the Funds and is acting as a "placing  broker" a part of the
interest  received with respect to the  investment  of  collateral  received for
securities loaned. No fee will be paid to affiliated persons of the Funds.

By  lending  portfolio  securities,  the  Funds  can  increase  their  income by
continuing  to receive  interest on the loaned  securities  as well as by either
investing  the  cash  collateral  in  permissible  investments,   such  as  U.S.
Government  Securities,  or obtaining  yield in the form of interest paid by the
borrower when such U.S. Government Securities are used as collateral.  The Funds
will comply with the following  conditions  whenever they loans securities:  (i)
the Funds must  receive at least 100%  collateral  from the  borrower;  (ii) the
borrower  must  increase  the  collateral  whenever  the  market  value  of  the
securities loaned rises above the level of the collateral;  (iii) the Funds must
be able  to  terminate  the  loan at any  time;  (iv)  the  Funds  must  receive
reasonable  compensation  with  respect to the loan,  as well as any  dividends,
interest or other distributions on the loaned securities;  (v) the Funds may pay
only  reasonable  fees in connection with the loan and (vi) voting rights on the
loaned  securities  may pass to the borrower  except that,  if a material  event
adversely  affecting the investment in the loaned securities  occurs, the Funds'
Board of  Directors  must  terminate  the loan and  regain the right to vote the
securities.

RULE 144A SECURITIES  (Affiliated  Fund) We may invest in securities  qualifying
for  resale to  "qualified  institutional  buyers"  under SEC Rule 144A that are
determined by the Board, or by Lord Abbett  pursuant to the Board's  delegation,
to be liquid  securities.  The Board will review  quarterly the liquidity of the
investments the Fund makes in such  securities.  Investments by the Fund in Rule
144A  securities  initially  determined  to be liquid  could  have the effect of
diminishing the level of the Fund's liquidity during periods of decreased market
interest in such securities among qualified institutional buyers.

OTHER INVESTMENT  POLICIES  (Affiliated  Fund) As stated in the Prospectus,  the
Fund may write  covered call options  which are traded on a national  securities
exchange  with respect to  securities in our portfolio in an attempt to increase
income  and to provide  greater  flexibility  in the  disposition  of  portfolio
securities.  A "call  option"  is a contract  sold for a price  (the  "premium")
giving its  holder  the right to buy a  specific  number of shares of stock at a
specific  price prior to a specified  date.  A "covered  call  option" is a call
option issued on  securities  already owned by the writer of the call option for
delivery to the holder upon the exercise of the option. During the period of the
option,  the Fund will forgo the  opportunity to profit from any increase in the
market price of the  underlying  security above the exercise price of the option
(to the extent that the  increase  exceeds our net  premium).  We also may enter
into "closing  purchase  transactions"  in order to terminate the  obligation to
deliver the underlying  security (this may result in a short-term gain or loss).
A closing purchase transaction is the purchase of a call option (at a cost which
may be more or less than the premium  received  for writing  the  original  call
option) on the same  security,  with the same exercise  price and call period as
the  option  previously  written.  If the Fund is unable to enter into a closing
purchase  transaction,  it may be  required  to hold a  security  that it  might
otherwise have sold to protect against depreciation. The Fund does not intend to
write covered call options with respect to securities  with an aggregate  market
value of more  than 10% of its gross  assets  at the time an option is  written.
This percentage limitation will not be increased without prior disclosure in the
Fund's current Prospectus.
<PAGE>
REPURCHASE  AGREEMENTS  (International  Fund) The Fund may enter into repurchase
agreements with respect to a security.  A repurchase  agreement is a transaction
by which the Fund acquires a security and simultaneously  commits to resell that
security to the seller (a bank or securities  dealer) at an agreed upon price on
an agreed upon date. The resale price reflects the purchase price plus an agreed
upon market rate of interest  which is  unrelated  to the coupon rate or date of
maturity of the purchased security. In this type of transaction,  the securities
purchased  by each  Fund  have a total  value  in  excess  of the  value  of the
repurchase  agreement.  The Fund  requires  at all  times  that  the  repurchase
agreement be collateralized by cash or U.S. Government securities having a value
equal  to,  or in  excess  of,  the  value  of the  repurchase  agreement.  Such
agreements  permit the Fund to keep all of its  assets at work  while  retaining
flexibility in pursuit of investments of a longer term nature.

The use of repurchase  agreements  involves certain risks.  For example,  if the
seller of the agreement  defaults on its obligation to repurchase the underlying
securities at a time when the value of these  securities has declined,  the Fund
may incur a loss  upon  disposition  of them.  If the  seller  of the  agreement
becomes  insolvent  and  subject  to  liquidation  or  reorganization  under the
Bankruptcy  Code or other  laws,  a  bankruptcy  court  may  determine  that the
underlying securities are collateral not within the control of each Fund and are
therefore  subject  to  sale by the  trustee  in  bankruptcy.  Even  though  the
repurchase  agreements may have  maturities of seven days or less, they may lack
liquidity,  especially if the issuer encounters  financial  difficulties.  While
Fund  management  acknowledges  these  risks,  it is  expected  that they can be
controlled   through  stringent   selection   criteria  and  careful  monitoring
procedures.   Fund  management   intends  to  limit  repurchase   agreements  to
transactions with dealers and financial institutions believed by Fund management
to present minimal credit risks.  Fund management will monitor  creditworthiness
of the repurchase agreement sellers on an ongoing basis.

The Fund will enter into repurchase agreements only with those primary reporting
dealers  that  report to the Federal  Reserve  Bank of New York and with the 100
largest United States commercial banks and the underlying  securities  purchased
under the  agreements  will consist only of those  securities  in which the Fund
otherwise may invest.

WARRANTS  (International Fund) Pursuant to Texas regulations,  the Fund will not
invest more than 5% of its assets in warrants and not more than 2% of such value
in warrants not listed on the New York or American Stock Exchanges,  except when
they form a unit with other securities. As a matter of operating policy, we will
not invest more than 5% of our net assets in rights.

COVERED CALL OPTIONS (International Fund) As stated in the Prospectus,  the Fund
may write  covered  call  options  which are  traded  on a  national  securities
exchange  with respect to  securities in its portfolio in an attempt to increase
its  income  and  to  provide  greater  flexibility  in the  disposition  of its
portfolio  securities.  A "call  option"  is a  contract  sold for a price  (the
"premium")  giving its  holder  the right to buy a specific  number of shares of
stock at a specific price prior to a specified  date. A "covered call option" is
a call  option  issued on  securities  already  owned by the  writer of the call
option for  delivery to the holder upon the  exercise of the option.  During the
period of the  option,  the Fund  forgoes  the  opportunity  to profit  from any
increase in the market price of the underlying security above the exercise price
of the option (to the extent that the  increase  exceeds its net  premium).  the
Fund may enter into "closing  purchase  transactions"  in order to terminate its
obligation to deliver the  underlying  security (this may result in a short-term
gain or loss). A closing  purchase  transaction is the purchase of a call option
(at a cost which may be more or less than the premium  received  for writing the
original call option) on the same  security,  with the same  exercise  price and
call  period as the option  previously  written.  If the Fund is unable to enter
into a closing purchase transaction,  it may be required to hold a security that
it might otherwise have sold to protect against  depreciation.  The Fund intends
to write  covered  call options  with  respect to  securities  with an aggregate
market  value of more  than 5% of its  gross  assets  at the time an  option  is
written.  This  percentage  limitation  will  not  be  increased  without  prior
disclosure in the current Prospectus.

<PAGE>
The Fund's custodian will segregate cash or liquid high-grade debt securities in
an amount not less than that required by Securities  Exchange Commission ("SEC")
Release  10666 with respect to the Fund's  assets  committed to written  covered
call options.  If the value of the segregated  securities  declines,  additional
cash or debt securities will be added on a daily basis (i.e.,  marked-to-market)
so that the  segregated  amount  will not be less than the  amount of the Fund's
commitments with respect to such written options.

FINANCIAL  FUTURES  CONTRACTS  (International  Fund)  The  Fund may  enter  into
contracts for the future delivery of a financial instrument,  such as a security
or the cash value of a securities index.  This investment  technique is designed
primarily  to hedge  (i.e.,  protect)  against  anticipated  future  changes  in
interest rates or market  conditions  which otherwise might adversely affect the
value of securities  which we hold or intend to purchase.  A "sale" of a futures
contract  means the  undertaking  of a  contractual  obligation  to deliver  the
securities  or the cash  value  of an  index  called  for by the  contract  at a
specified price during a specified  delivery  period.  A "purchase" of a futures
contract  means the  undertaking  of a  contractual  obligation  to acquire  the
securities  or cash value of an index at a  specified  price  during a specified
delivery period. At the time of delivery  pursuant to the contract,  adjustments
are  made to  recognize  differences  in value  arising  from  the  delivery  of
securities  which differ from those  specified in the  contract.  In some cases,
securities called for by a futures contract may not have been issued at the time
the contract was written.  The Fund will not enter into any futures contracts or
options  on  futures  contracts  if the  aggregate  of the  market  value of the
securities  covered by its outstanding  futures contracts and securities covered
by futures  contracts  subject to the  outstanding  options  written by it would
exceed 50% of its total assets.

Although  some  financial  futures  contracts by their terms call for the actual
delivery or acquisition of securities, in most cases, a party will close out the
contractual  commitment  before delivery without having to make or take delivery
of the security by purchasing (or selling,  as the case may be) on a commodities
exchange an identical  futures  contract calling for delivery in the same month.
Such a  transaction,  if effected  through a member of an exchange,  cancels the
obligation to make or take delivery of the securities.  All  transactions in the
futures market are made, offset or fulfilled through a clearing house associated
with the exchange on which the contracts are traded. The International Fund will
incur  brokerage fees when it purchases or sells  contracts and will be required
to maintain margin deposits.  At the time it enters into a futures contract,  it
is required to deposit with its custodian,  on behalf of the broker, a specified
amount of cash or  eligible  securities  called  "initial  margin."  The initial
margin  required  for a futures  contract  is set by the  exchange  on which the
contract is traded.  Subsequent payments, called "variation margin," to and from
the broker are made on a daily basis as the market price of the futures contract
fluctuates.  The costs incurred in connection  with futures  transactions  could
reduce the Fund's  return.  Futures  contracts  entail risks.  If the investment
adviser's  judgment about the general  direction of interest rates or markets is
wrong, the overall  performance may be poorer than if no such contracts had been
entered into.

There may be an  imperfect  correlation  between  movements in prices of futures
contracts and  portfolio  securities  being hedged.  The degree of difference in
price  movements  between  futures  contracts and the  securities (or securities
indices)  being  hedged  depends  upon such things as  variations  in demand for
futures  contracts and  securities  underlying  the  contracts  and  differences
between  the  liquidity  of the markets for such  contracts  and the  securities
underlying  them.  In addition,  the market  prices of futures  contracts may be
affected by certain factors not directly  related to the underlying  securities.
At any given  time,  the  availability  of futures  contracts,  and hence  their
prices, are influenced by credit conditions and margin requirements.  Due to the
possibility  of price  distortions  in the  futures  market  and  because of the
imperfect  correlation  between  movements  in  the  prices  of  securities  and
movements  in the  prices of futures  contracts,  a correct  forecast  of market
trends  by the  investment  adviser  may  not  result  in a  successful  hedging
transaction.
<PAGE>
OPTIONS  ON  FINANCIAL  FUTURES  CONTRACTS  (International  Fund)  The  Fund may
purchase  and write call and put  options on  financial  futures  contracts.  An
option on a futures  contract  gives the purchaser the right,  in return for the
premium paid, to assume a position in a futures contract at a specified exercise
price at any time during the period of the option. Upon exercise,  the writer of
the option  delivers the futures  contract to the holder at the exercise  price.
The Fund would be  required to deposit  with our  custodian  initial  margin and
maintenance  margin with  respect to put and call  options on futures  contracts
written by us. Options on futures  contracts  involve risks similar to the risks
relating  to  transactions  in  financial  futures  contracts  described  above.
Generally  speaking,  a given  dollar  amount  used to  purchase  an option on a
financial  futures  contract  can  hedge  a much  greater  value  of  underlying
securities than if that amount were used to directly purchase the same financial
futures.  Should the event that the Fund intends to hedge (or  protect)  against
not materialize,  however,  the option may expire  worthless,  in which case the
Fund would lose the premium paid therefor.

SEGREGATED ACCOUNTS  (International  Fund) To the extent required to comply with
Securities and Exchange  Commission  Release 10666 and any related SEC policies,
when  purchasing  a futures  contract,  or writing a put  option,  the Fund will
maintain in a segregated account at its custodian bank cash, U.S. Government and
other permitted securities to cover its position.

FORWARD FOREIGN CURRENCY CONTRACTS (Small-Cap Fund, Growth Opportunities Fund) A
forward foreign currency  contract  involves an obligation to purchase or sell a
specific  amount of a specific  currency at a set price at a future  date.  Each
Fund expects to enter into forward foreign  currency  contracts in primarily two
circumstances.  First,  when a Fund enters into a contract  for the  purchase or
sale of a security denominated in a foreign currency, it may desire to "lock in"
the U.S. dollar price of the security.  By entering into a forward  contract for
the  purchase  or  sale  of the  amount  of  foreign  currency  involved  in the
underlying  security  transaction,  each Fund will be able to protect  against a
possible loss resulting from an adverse change in the  relationship  between the
U.S. dollar and the subject foreign  currency during the period between the date
the  security  is  purchased  or sold and the date on which  payment  is made or
received.

Second,  when  management  believes  that the currency of a  particular  foreign
country may suffer a decline against the U.S. dollar, each Fund may enter into a
forward contract to sell the amount of foreign currency  approximating the value
of some or all of each Fund's portfolio  securities  denominated in such foreign
currency or, in the  alternative,  each Fund may use a  cross-hedging  technique
whereby  it sells  another  currency  which  each Fund  expects  to decline in a
similar  way but which has a lower  transaction  cost.  Precise  matching of the
forward  contract  amount  and the  value of the  securities  involved  will not
generally be possible since the future value of such  securities  denominated in
foreign currencies will change as a consequence of market movements in the value
of those  securities  between the date the forward  contract is entered into and
the date it  matures.  Each Fund  does not  intend  to enter  into such  forward
contracts under this second circumstance on a continuous basis.

REPURCHASE  AGREEMENTS  (Small-Cap Fund, Growth Opportunities Fund) If each Fund
enters into  repurchase  agreements as provided in clause (4) of the fundamental
investment  restrictions  above, it will do so only with those primary reporting
dealers  that  report to the Federal  Reserve  Bank of New York and with the 100
largest United States commercial banks and the underlying  securities  purchased
under the  agreements  will consist only of those  securities in which each Fund
otherwise may invest.

FOREIGN CURRENCY HEDGING TECHNIQUES  (Small-Cap Fund, Growth Opportunities Fund)
The Funds may utilize various foreign  currency  hedging  techniques,  including
forward foreign currency contracts and foreign currency put and call options.

FOREIGN  CURRENCY PUT AND CALL OPTIONS  (Small-Cap  Fund,  Growth  Opportunities
Fund) The Funds also may purchase foreign currency put options and write foreign
currency call options on U.S. exchanges or U.S.  over-the-counter markets. A put
option gives the Funds, upon payment of a premium,  the right to sell a currency
at the exercise  price until the  expiration  of the option and serves to insure
against  adverse  currency price  movements in the underlying  portfolio  assets
denominated in that currency.

Exchange-listed  options  markets in the United  States  include  several  major
currencies,  and trading may be thin and illiquid.  A number of major investment
firms  trade  unlisted  options  which are more  flexible  than  exchange-listed
options  with  respect  to strike  price and  maturity  date.  Unlisted  options
generally  are  available  in a wider  range  of  currencies.  Unlisted  foreign
currency  options are generally  less liquid than listed options and involve the
credit risk associated with the individual  issuer.  Unlisted options,  together
with other illiquid securities, are subject to a limit of 15% of each Funds' net
assets.
<PAGE>
A call  option  written  by the Funds  gives the  purchaser,  upon  payment of a
premium,  the right to purchase from the a currency at the exercise  price until
the  expiration  of the  option.  The Funds may write call  options on a foreign
currency only in  conjunction  with a purchase of a put option on that currency.
Such a strategy is designed to reduce the cost of downside  currency  protection
by limiting currency appreciation potential.  The face value of such writing may
not  exceed  90% of the value of the  securities  denominated  in such  currency
invested in by the Funds or in such cross currency  (referred to above) to cover
such call writing.

The Funds'  custodian will segregate cash or permitted  securities  belonging to
the Funds in an amount  not less than that  required  by SEC  Release  10666 and
related  policies  with  respect to the Funds'  assets  committed to (a) writing
options,  (b) forward  foreign  currency  contracts and (c) cross hedges entered
into  by  the  Funds.  If  the  value  of the  securities  segregated  declines,
additional cash or debt securities will be added on a daily basis (i.e.,  marked
to market),  so that the  segregated  amount will not be less than the amount of
the Funds'  commitments  with respect to such written  options,  forward foreign
currency contracts and cross hedges.

STOCK OPTIONS, OPTIONS ON STOCK INDICES AND STOCK INDEX FUTURES (Small-Cap Fund)
The Fund may write put and call options on stocks only if they are covered,  and
such options  must remain  covered so long as the Fund is obligated as a writer.
The Fund will not (a) write puts having an aggregate exercise price greater than
25% of the Fund's  total net assets;  or (b)  purchase (i) put options on stocks
not held in the Fund's  portfolio,  (ii) put  options on stock  indices or (iii)
call  options  on stocks or stock  indices  if,  after  any such  purchase,  the
aggregate  premiums  paid for such options  would exceed 20% of the Fund's total
net assets.

CALL OPTIONS ON STOCK  (Small-Cap  Fund) The Fund may, from time to time,  write
call options on its portfolio  securities.  The Fund may write only call options
which are "covered,"  meaning that the Fund either owns the underlying  security
or has an  absolute  and  immediate  right to  acquire  that  security,  without
additional cash  consideration,  upon conversion or exchange of other securities
currently held in its portfolio.  In addition, the Fund will not permit the call
to become uncovered prior to the expiration of the option or termination through
a closing  purchase  transaction as described  below.  If the Fund writes a call
option,  the  purchaser of the option has the right to buy (and the Fund has the
obligation to sell) the underlying security at the exercise price throughout the
term of the option.  The amount paid to the Fund by the  purchaser of the option
is the  "premium."  The Fund's  obligation  to deliver the  underlying  security
against payment of the exercise price would terminate  either upon expiration of
the  option  or  earlier  if  the  Fund  were  to  effect  a  "closing  purchase
transaction" through the purchase of an equivalent option on an exchange.  There
can be no assurance that a closing  purchase  transaction  can be effected.  The
Fund does not intend to write  covered call  options with respect to  securities
with an aggregate  market value of more than 5% of it's gross assets at the time
an option is written.  This percentage  limitation will not be increased without
prior disclosure in our current prospectus.

The Fund would not be able to effect a closing purchase transaction after it had
received  notice  of  exercise.  In order to  write a call  option,  the Fund is
required to comply with the rules of The Options  Clearing  Corporation  and the
various  exchanges  with respect to  collateral  requirements.  The Fund may not
purchase call options except in connection with a closing purchase  transaction.
It is possible that the cost of effecting a closing purchase  transaction may be
greater than the premium received by the Fund for writing the option.

Generally,  the Fund intends to write listed covered call options during periods
when it  anticipates  declines  in the  market  values of  portfolio  securities
because  the  premiums  received  may offset to some  extent the  decline in the
Fund's net asset value  occasioned by such  declines in market value.  Except as
part of the "sell discipline" described below, the Fund will generally not write
listed covered call options when it  anticipates  that the market values of it's
portfolio securities will increase.

One reason for the Fund to write call options is as part of a "sell discipline."
If the Fund decides that a portfolio  security would be overvalued and should be
sold at a certain price higher than the current price,  it could write an option
on the stock at the higher price. Should the stock subsequently reach that price
and the option be  exercised,  the Fund would,  in effect,  have  increased  the
selling  price of that  stock,  which it would  have  sold at that  price in any
event, by the amount of the premium.  In the event the market price of the stock
declined and the option were not exercised, the premium would offset all or some
portion  of the  decline.  It is  possible  that the  price of the  stock  could
increase  beyond the exercise  price;  in that event,  the Fund would forego the
opportunity  to sell the stock at that higher price.  In addition,  call options
may be  used as part  of a  different  strategy  in  connection  with  sales  of
portfolio  securities.  If, in the judgment of the Fund  Management,  the market
price of a stock is  overvalued  and it  should  be sold,  the Fund may elect to
write a call  option  with an  exercise  price  substantially  below the current
market price. As long as the value of the underlying  security remains above the
exercise  price  during  the  term  of  the  option,  the  option  will,  in all
probability,  be exercised,  in which case the Fund will be required to sell the
stock at the exercise  price.  If the sum of the premium and the exercise  price
exceeds  the market  price of the stock at the time the call  option is written,
the Fund would,  in effect,  have increased the selling price of the stock.  The
Fund  would not write a call  option  in these  circumstances  if the sum of the
premium and the  exercise  price were less than the current  market price of the
stock.
<PAGE>
PUT  OPTIONS  ON STOCK  (Small-Cap  Fund)  The Fund may also  write  listed  put
options.  If the Fund writes a put option,  it is  obligated to purchase a given
security at a specified price at any time during the term of the option.

Writing listed put options is a useful  portfolio  investment  strategy when the
Fund has cash or other reserves available for investment as a result of sales of
Fund  shares or,  more  importantly,  because  Fund  Management  believes a more
defensive  and less fully  invested  position  is  desirable  in light of market
conditions.  If the Fund  Management  wishes to invest its cash or reserves in a
particular  security at a price lower than current market value,  it may write a
put option on that security at an exercise  price which reflects the lower price
it is willing to pay.  The buyer of the put option  generally  will not exercise
the option  unless the market  price of the  underlying  security  declines to a
price near or below the  exercise  price.  If the Fund writes a listed put,  the
price of the underlying stock declines and the option is exercised, the premium,
net of transaction charges,  will reduce the purchase price paid by the Fund for
the  stock.  The price of the stock  may  decline  by an amount in excess of the
premium,  in which event the Fund would have foregone an opportunity to purchase
the stock at a lower price.

If, prior to the exercise of a put option, the Fund determines that it no longer
wishes to invest in the stock on which the put option had been written, the Fund
may be  able  to  effect  a  closing  purchase  transaction  on an  exchange  by
purchasing  a put  option of the same  Fund as the one  which it has  previously
written.  The cost of effecting a closing  purchase  transaction  may be greater
than the premium  received  on writing the put option and there is no  guarantee
that a closing purchase transaction can be effected.

STOCK INDEX OPTIONS  (Small-Cap  Fund) Except as describe  below,  the Fund will
write  call  options  on indices  only if on such date it holds a  portfolio  of
stocks at least equal to the value of the index times the  multiplier  times the
number of contracts. When the Fund writes a call option on a broadly-based stock
market index, it will segregate or put into escrow with its custodian, or pledge
to a broker as collateral  for the option,  one or more  "qualified  securities"
with a market  value at the time the  option is written of not less than 100% of
the current index value times the multiplier times the number of contracts.

SEGREGATED  ACCOUNTS  (Small-Cap  Fund) If the Fund has  written an option on an
industry or market segment index,  it will segregate or put into escrow with its
custodian,  or pledge to a broker as  collateral  for the  option,  at least ten
"qualified  securities,"  which are  securities of an issuer in such industry or
market  segment,  with a market  value at the time the  option is written of not
less than 100% of the current index value times the multiplier  times the number
of contracts.  A "qualified security" is an equity security which is listed on a
national securities exchange or listed on the National Association of Securities
Dealers  Automated  Quotation  System  against  which the Fund has not written a
stock call option and which has not been hedged by the Fund by the sale of stock
index futures.  Such securities will include stocks which represent at least 50%
of the weighing of the industry or market  segment  index and will  represent at
least  50% of the  Fund's  holdings  in that  industry  or  market  segment.  No
individual  security will  represent  more than 25% of the amount so segregated,
pledged or escrowed.  If at the close of business on any day the market value of
such qualified securities so segregated, escrowed or pledged falls below 100% of
the current index value times the multiplier times the number of contracts,  the
Fund will so segregate,  escrow or pledge an amount in cash,  Treasury  bills or
other high-grade  short-term  obligations  equal in value to the difference.  In
addition,  when the Fund writes a call on an index which is  in-the-money at the
time the call is written,  the Fund will  segregate with its custodian or pledge
to the broker as collateral cash, equity securities,  non-investment grade debt,
short  term U.S.  Government  securities  or other  high-grade  short-term  debt
obligations equal in value to the amount by which the call is in-the-money times
the multiplier times the number of contracts.  Any amount segregated pursuant to
the  foregoing  sentence may be applied to the  Small-Cap  Fund's  obligation to
segregate additional amounts in the event that the market value of the qualified
securities  falls  below 100% of the current  index  value times the  multiplier
times the  number of  contracts.  However,  if the Fund holds a call on the same
index as the call written where the exercise  price of the call held is equal to
or less than the exercise price of the call written or greater than the exercise
price of the call written if the  difference  is maintained by the Fund in cash,
equity securities, non-investment grade debt, treasury bills or other high-grade
short-term  obligations in a segregated account with its custodian,  it will not
be  subject  to the  requirements  describe  in  this  paragraph.  In  instances
involving the purchase of stock index  futures  contracts by the Fund, an amount
of cash or  permitted  securities  equal  to the  market  value  of the  futures
contracts  will be  deposited in a  segregated  account  with the its  custodian
and/or in a margin  account  with a broker to  collateralize  the  position  and
thereby insure that the use of such futures are unleveraged.
<PAGE>
Under regulations of the Commodity Exchange Act, investment companies registered
under the Act are exempt  from the  definition  of  "commodity  pool  operator,"
provided all of the Fund's commodity futures or commodity  options  transactions
constitute  bona fide  hedging  transactions  within  the  meaning of the CFTC's
regulations.  The Fund will use stock  index  futures  and options on futures as
described herein in a manner consistent with this requirement.

STOCK INDEX FUTURES  (Small-Cap  Fund) The Fund will engage in  transactions  in
stock index futures  contracts as a hedge against changes  resulting from market
conditions in the values of securities which are held in the Fund's portfolio or
which it intends to  purchase.  The Fund will engage in such  transactions  when
they are  economically  appropriate  for the reduction of risks  inherent in the
ongoing  management  of the Fund.  The Fund may not purchase or sell stock index
futures if, immediately thereafter,  more than one-third of its net assets would
be hedged  and, in  addition,  except as  described  above in the case of a call
written and held on the same index,  will write call  options on indices or sell
stock index futures only if the amount resulting from the  multiplication of the
then  current  level of the index (or  indices)  upon which the option or future
contract(s) is based, the applicable multiplier(s), and the number of futures or
options contracts which would be outstanding,  would not exceed one-third of the
value of the Fund's net assets.

RISK FACTORS

RISK FACTORS (Affiliated Fund) As stated in the Prospectus,  the Fund may invest
no more than 5% of our net assets (at the time of  investment)  in  lower-rated,
high-yield  bonds. In general,  the market for lower-rated,  high-yield bonds is
more limited than the market for higher-rated bonds, and because trading in such
bonds may be  thinner  and less  active,  the  market  prices of such  bonds may
fluctuate more than the prices of higher-rated  bonds,  particularly in times of
market  stress.  In addition,  while the market for  high-yield,  corporate debt
securities  has been in  existence  for many years,  the market in recent  years
experienced a dramatic  increase in the  large-scale  use of such  securities to
fund highly-leveraged  corporate  acquisitions and restructurings.  Accordingly,
past experience may not provide an accurate  indication of future performance of
the high-yield  bond market,  especially  during periods of economic  recession.
Other risks which may be associated with  lower-rated,  high-yield bonds include
their relative  insensitivity to interest-rate  changes;  the exercise of any of
their  redemption or call  provisions in a declining  market which may result in
their replacement by lower-yielding  bonds; and legislation,  from time to time,
which may  adversely  affect their  market.  Since the risk of default is higher
among lower-rated,  high-yield bonds, Lord Abbett's research and analyses are an
important   ingredient  in  the  selection  of  such  bonds.  Through  portfolio
diversification,  good credit analysis and attention to current developments and
trends  in  interest  rates  and  economic  conditions,  investment  risk can be
reduced,  although  there is no assurance  that losses will not occur.  The Fund
does  not  have any  minimum  rating  criteria  applicable  to the  fixed-income
securities in which it invests.

RISKS OF TRANSACTIONS IN STOCK OPTIONS (Small-Cap Fund) Writing options involves
the risk that there will be no market in which to effect a closing  transaction.
An option  position  may be closed  out only on an  exchange  which  provides  a
secondary  market  for an  option  of the same  Fund.  Although  the  Fund  will
generally  write  only those  options  for which  there  appears to be an active
secondary  market,  there is no assurance that a liquid  secondary  market on an
exchange will exist for any particular  option,  or at any particular  time, and
for some options no secondary market on an exchange may exist. If the Fund, as a
covered call option writer,  is unable to effect a closing purchase  transaction
in a secondary market, it will not be able to sell the underlying security until
the option expires or it delivers the underlying security upon exercise.
<PAGE>
RISKS OF OPTIONS ON INDICES  (Small-Cap  Fund) The Fund's  purchase  and sale of
options on  indices  will be subject to risks  described  above  under  "Risk of
Transactions in Stock Options." In addition, the distinctive  characteristics of
options on indices create certain risks that are not present with stock options.

Because the value of an index option  depends upon movements in the level of the
index rather than the price of a particular stock, whether the Fund will realize
a gain or loss on the  purchase  or sale of an option on an index  depends  upon
movements in the level of stock  prices in the stock  market  generally or in an
industry or market  segment  rather than  movements in the price of a particular
stock.  Accordingly,  successful  use by the Fund of options on indices would be
subject to the investment  adviser's ability to predict  correctly  movements in
the direction of the stock market  generally or of a particular  industry.  This
requires different skills and techniques than predicting changes in the price of
individual stocks.

Index prices may be distorted if trading of certain stocks included in the index
is  interrupted.  Trading in the index option also may be interrupted in certain
circumstances,  such as if trading were halted in a substantial number of stocks
included in the index. If this occurred, the Fund would not be able to close out
options which it had purchased or written and, if  restrictions on exercise were
imposed,  may be unable to  exercise an option it holds,  which could  result in
substantial  losses to the Fund.  It is the Fund's  policy to  purchase or write
options only on indices which include a number of stocks  sufficient to minimize
the likelihood of a trading halt in the index.

Trading  in index  options  commenced  in  April  1983  with the S&P 100  option
(formerly  called the CBOE 100).  Since that time a number of  additional  index
option  contracts have been introduced  including  options on industry  indices.
Although the markets for certain index option contracts have developed  rapidly,
the markets for other index options are still relatively  illiquid.  The ability
to  establish  and close out  positions  on such  options will be subject to the
development and maintenance of a liquid secondary market. It is not certain that
this  market  will  develop  in all index  option  contracts.  The Fund will not
purchase  or  sell  any  index  option   contract  unless  and  until,  in  Fund
management's  opinion,  the market for such options has  developed  sufficiently
that such risk in connection with such transactions in no greater than such risk
in connection with options on stocks.

SPECIAL RISKS OF WRITING CALLS ON INDICES  (Small-Cap Fund) Because exercises of
index options are settled in cash, a call writer cannot  determine the amount of
its  settlement  obligations  in advance  and,  unlike call  writing on specific
stocks,  cannot  provide in advance  for,  or cover,  its  potential  settlement
obligations by acquiring and holding the  underlying  securities.  However,  the
Fund will write call options on indices only under the  circumstances  described
above under "Limitations on the Purchases and Sales of Stock Options, Options on
Stock Indices and Stock Index Futures."

Price movements in the Fund's  portfolio  probably will not correlate  precisely
with movements in the level of the index and, therefore, the Fund bears the risk
that the price of the securities  held may not increase as much as the index. In
such event the Fund would bear a loss on the call which is not completely offset
by movements in the price of the Fund's portfolio.  It is also possible that the
index may rise  when the  Fund's  portfolio  of  stocks  does not rise.  If this
occurred, the Fund would experience a loss on the call which is not offset by an
increase in the value of its portfolio  and might also  experience a loss in its
portfolio.  However,  because the value of a diversified  portfolio  will,  over
time,  tend to move in the same direction as the market,  movements in the value
of the Fund in the opposite direction to the market would be likely to occur for
only a short period or to a small degree.

Unless the Fund has other  liquid  assets  that are  sufficient  to satisfy  the
exercise of a call, the Fund would be required to liquidate portfolio securities
in order to satisfy the  exercise.  Because an exercise  must be settled  within
hours after receiving the notice of exercise, if the Fund fails to anticipate an
exercise,  it may have to borrow (in  amounts  not  exceeding  20% of the Fund's
total assets) pending  settlement of the sale of securities in its portfolio and
would incur interest charges thereon.
<PAGE>
When the Fund has  written  a call,  there is also a risk  that the  market  may
decline  between  the time the call is written  and the time the Fund is able to
sell stocks in its  portfolio.  As with stock  options,  the Fund will not learn
that an index option has been  exercised  until the day  following  the exercise
date but,  unlike a call on stock  where the Fund would be able to  deliver  the
underlying securities in settlement, the Fund may have to sell part of its stock
portfolio  in order to make  settlement  in cash,  and the price of such  stocks
might decline before they can be sold. This timing risk makes certain strategies
involving more than one option  substantially more risky with index options than
with  stock  options.  For  example,  even if an index  call  which the Fund has
written  is  "covered"  by an index  call held by the Fund with the same  strike
price,  the Fund will  bear the risk  that the  level of the  index may  decline
between the close of trading on the date the  exercise  notice is filed with the
clearing corporation and the close of trading on the date the Fund exercises the
call it holds or the time the Fund  sells the call  which in either  case  would
occur no earlier than the day following the day the exercise notice was filed.

SPECIAL RISKS OF PURCHASING  PUTS AND CALLS ON INDICES  (Small-Cap  Fund) If the
Fund holds an index option and  exercises it before final  determination  of the
closing  index  value  for that  day,  it runs the  risk  that the  level of the
underlying  index  may  change  before  closing.  If such a  change  causes  the
exercised option to fall out-of-the-money,  the Fund will be required to pay the
difference  between the closing index value and the exercise price of the option
(times the applicable multiple) to the assigned writer. Although the Fund may be
able to  minimize  this risk by  withholding  exercise  instructions  until just
before the daily cut off time or by selling  rather  than  exercising  an option
when the index  level is close to the  exercise  price it may not be possible to
eliminate this risk entirely  because the cut off times for index options may be
earlier  than  those  fixed  for other  types of  options  and may occur  before
definitive closing index values are announced.

                                       2.
                        Directors (Trustees) and Officers

The following  director is a partner of Lord, Abbett & Co. ("Lord Abbett"),  The
General Motors Building, 767 Fifth Avenue, New York, New York 10153-0203. He has
been  associated  with Lord  Abbett for over five years and is also an  officer,
director,  or trustee  of twelve  other Lord  Abbett-sponsored  funds.  He is an
"interested  person" as defined in the Act, and as such,  may be  considered  to
have an  indirect  financial  interest in the Rule 12b-1 Plan  described  in the
Prospectus.

Robert S. Dow, age 53, Chairman and President

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

E. Thayer Bigelow
Time Warner Inc.
1271 Avenue of the Americas
New York, New York

     Senior Adviser,  Time Warner Inc. Formerly,  Acting Chief Executive Officer
of Courtroom  Television  Network (1997 - 1998).  Formerly,  President and Chief
Executive Officer of Time Warner Cable Programming, Inc. (1991 - 1997). Prior to
that, President and Chief Operating Officer of Home Box Office, Inc. Age 57.

William H. T. Bush
Bush-O'Donnell & Co., Inc.
101 South Hanley Road, Suite 1025
St. Louis, Missouri

Co-founder   and   Chairman  of  the  Board  of  financial   advisory   firm  of
Bush-0'Donnell & Company. Age 60.


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

Managing Director of Monitor Clipper Partners and President of The Clipper Group
L.P., both private equity investment funds. Age 56.
<PAGE>
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 68.

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

     Retired.  Former Chairman of Independent Election Corporation of America, a
proxy tabulating firm. Age 73.

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

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

Hansel B. Millican, Jr.
Rochester Button Company
1328 Broadway (Suite 816)
New York, New York

President and Chief Executive Officer of Rochester Button Company.  Age 70.


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

     Chairman of Spencer Stuart, an executive search consulting firm.  Currently
serves as a Director of Ace, Ltd. (NYSE). Age 61.


<PAGE>



          For the Fiscal Year Ended October 31, 1997 - Affiliated Fund
             For the Fiscal Year Ended November 30, 1997 - Research
               Fund -Small-Cap Fund, Growth Opportunities Fund For
              the Fiscal Year Ended November 30, 1997 - Investment
                             Trust -High Yield Fund
 For the Fiscal Year Ended October 31, 1997 - Securities Trust - International 
                                Fund

        The following table sets forth the compensation  accrued for each Fund's
outside directors/trustees.

                               Aggregate
Name of Director               Compensation Accrued by each Fund1               
                                                           Investment
                                       Research Fund -      Trust -  Securities 
                                               Growth       High     Trust -
                         Affiliated Small-Cap  Opportuni-   Yield    Interna-
                         Fund       Fund  &    ties Fund    Fund     tional     
                                                                     Fund
E. Thayer Bigelow $22,939               $311                $10,580   $450
William H. T. Bush*      $0             $0                  $0        $0
Robert B. Calhoun**      $0             $0                  $0        $0
Stewart S. Dixon         $22,527        $306                $10,388   $442
John C. Jansing(4)       $22,527        $306                $10,388   $442
C. Alan MacDonald        $23,418        $320                $10,843   $460
Hansel B. Millican, Jr.  $22,719        $307                $10,438   $446
Thomas J. Neff           $22,839        $311                $10,528   $449

*Elected  as of August 13, 1998
**Elected as of June 17, 1998


   The  following   table  sets  forth   information   with  respect  to  the
   equity-based  benefits  accrued  for outside  directors/trustees  by the Lord
   Abbett-sponsored funds.

Name of Director         Pension or Retirement Benefits
                         Accrued by each Fund and Twelve Other
                         Lord Abbett-sponsored Funds 2             


E. Thayer Bigelow         $17,068
William H.T. Bush*        $0
Robert B. Calhoun**       $0
Stewart S. Dixon          $32,190
John C. Jansing 4         $45,0854
C. Alan MacDonald         $30,703
Hansel B. Millican, Jr.   $37,747
Thomas J. Neff            $19,853


<PAGE>
   The following table sets forth the total  compensation  payable by such funds
  to the outside directos/trustees.  No director/trsutee of the funds associated
  with Lord Abbett and no officer of the funds  received any  compensation  from
  the funds for acting as a director or officer.


Name of Director         For Year Ended December 31, 1997
                         Total Compensation Accrued by each Fund and
                         Twelve Other Lord Abbett-sponsored Funds 3

E. Thayer Bigelow         $56,000
William H.T. Bush*        $0
Robert B. Calhoun**       $0
Stewart S. Dixon          $55,000
John C. Jansing 4         $55,000
C. Alan MacDonald         $57,400
Hansel B. Millican, Jr.   $55,000
Thomas J. Neff            $56,000


1. Outside  directors' fees,  including  attendance fees for board and committee
   meetings,  are allocated among all Lord  Abbett-sponsored  funds based on the
   net  assets of each fund.  A portion of the fees  payable by each 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 High Yield Fund has not commenced  paying fees. When the High
   Yield Fund starts to pay such fees, a portion of the fees payable by the Fund
   to its outside  directors/trustees  will be deferred under a plan that d eems
   tha  deferred  amounts  to be  invested  in  shares  of the  Fund  for  later
   distribution to the  directors/trustees.The  amount of aggregate compensation
   payable by each Fund as of its 1997 fiscal  year end deemed  invested in Fund
   shares  includes  dividends   reinvested  and  changes  in  net  asset  value
   applicable to such deemed investments.

2.The amounts were accrued by the Lord Abbett-sponsored  funds for the 12 months
ended December 31, 1997 with respect to the equity based plans  established  for
independent  directors  in 1996.  This plan  supercedes  a  previously  approved
retirement  plan  for  all  future  directors.  Directors  participating  in the
retirement plan had the option to convert their accrued benefits under the plan.
All of the outside directors except one made such an election.

3.This table shows aggregate compensation, including directors/trustees fees and
   attendance fees for board and committee meetings,  of a nature referred to in
   footnote  one,  accrued by the Lord  Abbett-sponsored  funds  during the year
   ended December 31, 1997. The amounts of the aggregate compensation payable as
   of October 31,  1997 deemed  invested  in Fund  shares,  including  dividends
   reinvested  and  changes  in  net  asset  value  applicable  to  such  deemed
   investments  were, for  Affiliated  Fund, Mr.  Bigelow,  $72,452;  Mr. Dixon,
   $323,416;  Mr. Jansing,  $ 390,389;  Mr. MacDonald,  $234,210;  Mr. Millican,
   $394,521  and Mr.  Neff,  $390,787.  If the amounts  deemed  invested in Fund
   shares were added to each  director/trustee's  actual holdings of Fund shares
   as of October 31, 1997,  each would own the  following:  Mr.  Bigelow,  1,546
   shares; Mr. Dixon,  2,276 shares; Mr. Jansing,  21,336 shares; Mr. MacDonald,
   30,234 shares; Mr. Millican, 21,998 shares; and Mr. Neff, 5,823 shares.

     For  Research  Fund  -Small-Cap  Fund and Growth  Opportunities  Fund,  the
amounts of the  aggregate  compensation  payable by the Fund as of November  30,
1997 deemed invested in Fund shares,  including dividends reinvested and changes
in net asset value  applicable to such deemed  investments,  were: Mr.  Bigelow,
$334; Mr. Dixon, $0; Mr. Jansing, $327; Mr. MacDonald,  $0; Mr. Millican,  $331;
and Mr. Neff,  $334. If the amounts deemed invested in Fund shares were added to
each  director's  actual  holdings of Fund  shares as of November  30, 1997 each
would own, the following:  Mr.  Bigelow,  19 shares;  Mr. Dixon,  0 shares;  Mr.
Jansing, 1,420 shares; Mr. MacDonald, 4,008 shares; Mr. Millican, 19 shares; and
Mr. Neff, 19 shares.

     For   Investment   Trust  -High  Yield  Fund,   the  amounts  of  aggregate
compensation payable by the Fund as of November 30, 1997 deemed invested in Fund
shares, including dividends reinvested and changes in net asset value applicable
to such deemed investments, were: Mr. Bigelow, $39,081; Mr. Dixon, $107,152; Mr.
Jansing, $142,903; Mr. MacDonald, $84,555; Mr. Millican, $143,927; and Mr. Neff,
$143,008.  If the  amounts  deemed  invested  in Fund  shares were added to each
director's  actual  holdings of Fund shares as of November 30, 1997,  each would
own, the following:  Mr. Bigelow,  1,233 shares; Mr. Dixon, 4,267.85 shares; Mr.
Jansing,  8,833 shares; Mr. MacDonald,  214,120 shares; Mr. Millican,  0 shares;
and Mr. Neff, 5,896 shares.

     For  Securities  Trust -  International  Fund, the amounts of the aggregate
compensation  payable by the Fund as of October 31, 1997 deemed invested in Fund
shares, including dividends reinvested and changes in net asset value applicable
to such deemed investments,  were: Mr. Bigelow, $ 939; Mr. Dixon,  $21,556;  Mr.
Jansing,  $22,346; Mr. MacDonald,  $9,515; Mr. Millican,  $21,626; and Mr. Neff,
$22,587.  If the  amounts  deemed  invested  in Fund  shares  were added to each
director's  actual  holdings of Fund shares as of October 31,  1997,  each would
own, the  following:  Mr.  Bigelow,  107 shares;  Mr. Dixon,  2,890 shares;  Mr.
Jansing, 6,920 shares; Mr. MacDonald,  1,083 shares; Mr. Millican, 2,460 shares;
and Mr. Neff, 2,996 shares.


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

Except where indicated,  the following executive officers of each Fund have been
associated  with Lord  Abbett for over five  years.  Of the  following,  Messrs.
Brown, Fetch, Carper, Gerber, Hilstad, Hudson,  McGruder,  Morris, and Walsh are
partners of Lord Abbett; the others are employees:



EXECUTIVE VICE PRESIDENTS:
Zane E. Brown, age 46 (International Fund )

     Robert P. Fetch,  age 45  (Small-Cap  Fund) (with Lord Abbett  since 1995 -
formerly Managing Director at Prudential Investment Advisors from 1983 to 1995)

     Robert I.  Gerber,  age 44 (High Yield Fund) (with Lord Abbett since 1997 -
formerly Senior Portfolio Manager at Sanford Bernstein & Co. from 1992 - 1997)

W. Thomas Hudson, age 56 (Affiliated Fund )

     Robert G.  Morris,  age 54  (Small-Cap  Fund,  Growth  Opportunities  Fund,
International Fund, High Yield Fund)

<PAGE>
Stephen J. McGruder,  age 55 (Growth Opportunities Fund) (with Lord Abbett since
1995 - formerly Vice President of Wafra Securities from 1988 to 1995)

VICE PRESIDENTS:
Paul A. Hilstad,  age 55, Vice  President  and Secretary  (all Funds) (with Lord
Abbett  since 1995 - formerly  Senior  Vice  President  and  General  Counsel of
American Capital Management & Research, Inc.)

Zane E. Brown, age 46 (Small-Cap Fund)

Daniel E. Carper, age 46 (all Funds)

Timothy  Horan,  age 44  (International  Fund)  (with Lord  Abbett  since  1996-
formerly  Senior Manager at Credit Suisse from 1994 to 1995;  prior thereto Vice
President at Aubrey G. Lanston & Co. from 1992 to 1994)

Lawrence H. Kaplan,  age 41, Vice President and Assistant  Secretary (all Funds)
(with Lord Abbett  since 1997 - formerly  Vice  President  and Chief  Counsel of
Salomon  Brothers Asset  Management Inc from 1995 to 1997;  prior thereto Senior
Vice President, Director and General Counsel of Kidder Peabody Asset Management,
Inc.)

Thomas F. Konop, age 56, Vice President and Assistant Secretary  (all Funds)

Jerald Lanzotti, age  31 (International Fund)

     Gregory M. Macosko,  age 51 (Small-Cap Fund) (with Lord Abbett since 1997 -
formerly Analyst with Royce Associates from 1991 to 1997)

Robert Morris, age 54 (Affiliated Fund)

A. Edward Oberhaus III, age 38 (all Funds)

Keith F. O'Connor, age 43 (all Funds)

Fernando  Saldanha,  age 45 (International  Fund) (with Lord Abbett since 1998 -
formerly  Economist and Senior Financial  Officer of World Bank (IBRO) from 1988
to 1998)

Eli Salzman,  age 34  (Affiliated  Fund) (with Lord Abbett since 1997 - formerly
Vice President of Mutual of America Capital Corp.;  prior thereto Vice President
of Mitchell Hutchins Asset Mgt. from 1986 to 1996)

Christopher J. Towle, age 41 (International Fund)

John J. Walsh, age 62 (all Funds); and

Treasurer:
     Donna M.  McManus,  age 37,  Treasurer  (all Funds) (with Lord Abbett since
1996 - formerly a Senior Manager at Deloitte & Touche
LLP).
<PAGE>

The Funds'  By-Laws  provide that each 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  Investment  Company Act of 1940, as amended (the
"Act"),  or unless called by a majority of the Board of Directors  (Trustees) or
by  shareholders  holding  at  least  one  quarter  of the  stock  of each  Fund
outstanding and entitled to vote at the meeting. When any such annual meeting is
held, the shareholders will elect directors  (trustees) and vote on the approval
of the independent auditors of each Fund, except for International Fund.

                                       3.
                     Investment Advisory and Other Services

     As described under "Our  Management" in the Prospectus,  Lord Abbett is the
investment  manager of the Funds. Ten of the general partners of Lord Abbett are
officers and/or  directors  (trustees) of the Funds, as follows:  Zane E. Brown;
Daniel E. Carper;  Robert S. Dow;  Robert P. Fetch;  Robert I.  Gerber;  Paul A.
Hilstad; W. Thomas Hudson; Stephen J. McGruder; Robert G. Morris; Christopher J.
Towle; and John J. Walsh.

     The other  general  partners who are neither  officers nor directors of the
Funds are Stephen Allen, John E. Erard, Daria L. Foster,  Michael B. McLaughlin,
R. Mark  Pennington,  and Robert J.  Noelke.  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 in the Prospectus under "Our
Management." Under its Management Agreement,  Affiliated Fund pays Lord Abbett a
monthly  fee,  based on average  daily net assets for each month,  at the annual
rate of .5 of 1% of the portion of its net assets not in excess of $200,000,000;
 .4 of 1% of the  portion  in  excess  of  $200,000,000,  but  not in  excess  of
$500,000,000;  .375 of 1% of the portion in excess of  $500,000,000,  but not in
excess of $700,000,000;  .35 of 1% of the portion in excess of $700,000,000, but
not in  excess  of  $900,000,000;  and  .3 of 1% of the  portion  in  excess  of
$900,000,000.

For the fiscal years ended October 31, 1997,  1996 and 1995, the management fees
paid to Lord Abbett by the Affiliated Fund amounted to $22,192,209,  $17,683,694
and $14,431,000, respectively.

Under its Management Agreement, Small-Cap Fund is 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  Small-Cap  Fund's  average  daily net assets.  For the
period December 13, 1995 (commencement of operations) to November 30, 1996, Lord
Abbett waived $24,461 in management fees with respect to the Small-Cap Fund. For
the same time period,  Lord Abbett did not receive  management fees with respect
to the  Small-Cap  Fund.  For the  year end  November  30,  1997 and the  period
December  13, 1995  (commencement  of  operations)  to November  30,  1996,  the
management fees paid to Lord Abbett by the Small-Cap Fund amounted to $1,075,019
and $0 , respectively.

Under the Management  Agreement,  Growth  Opportunities Fund is obligated to pay
Lord Abbett a monthly fee, based on average daily net assets for each month,  at
the annual rate of .90 of 1% of the Fund's  average  daily net  assets.  For the
period from August 1, 1995  (commencement  of operations)  through  November 30,
1995, the fiscal year ended November 30, 1996 and the fiscal year ended November
30, 1997 and the  semi-annual  period ended May 31, 1998, the management fee was
 .75 of 1% and was waived by Lord Abbett with respect to the Fund and, except for
this  waiver,  would have  amounted  to $2,125,  $8,249;  $10,844,  and  $7,077,
respectively.  On September 15, 1998, the Fund's shareholders voted to raise the
management fee to .90 of 1%.

Under its  Management  Agreement,  International  Fund is  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%. For the period  December  13, 1996  (commencement  of
operations) to October 31, 1997, the management  fees paid to Lord Abbett by the
International Fund amounted to $ 127,715.

Each  Fund's  fee is  allocated  among  all  of  its  classes  based  on  each's
proportionate share of such daily net assets.

In addition we are obligated to pay all expenses not  expressly  assumed by Lord
Abbett,  including,  without  limitation,  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 transactions.

<PAGE>
Deloitte & Touche LLP, Two World Financial Center,  New York, New York 10281 are
the independent auditors for each Fund and must be approved at least annually by
each Fund's Board of Directors  (Trustees)  to continue in such  capacity.  They
perform  audit  services  for  each  Fund  including  the  audits  of  financial
statements included in each Fund's annual report to shareholders.

The Bank of New York ("BNY"),  48 Wall Street, New York, New York 10268, is each
Fund's custodian. In accordance with the requirements of Rule 17f-5, each Fund's
directors (trustees) have approved  arrangements  permitting each Fund's foreign
assets not held by BNY or its foreign  branches to be held by certain  qualified
foreign banks and depositories.

The Sub-Custodians of BNY are:

     Euro-Clear (a transnational securities depository);  Australia: ANZ Banking
Group;  Austria:  Creditanstalt-Bankverein;  Canada:  Canadian  Imperial Bank of
Commerce; Chile: Citibank, N.A.; Czech Republic:  Ceskoslovenska Obchodni Banka;
Denmark: Den Danske Bank; Finland:  Union Bank of Finland;  Germany: J.P. Morgan
GmbH; Greece:  National Bank of Greece S.A.; Hong Kong, Indonesia,  Philippines,
Taiwan and  Thailand:  Hong Kong & Shanghai  Banking  Corp.;  Hungary:  Citibank
Budapest Rt; India: Hong Kong and Shanghai Banking Corporation;  Ireland: Allied
Irish Banks, PLC; Israel: Bank Leumi LE-Israel B.M.; Japan: The Fuji Bank, Ltd.;
Jordan: Citibank, N.A.; Korea: Bank of Seoul; Luxembourg:  Banque Internationale
A Luxembourg,  S.A.;  Mexico:  Citibank,  N.A.;  Morocco:  Banque Commerciale du
Maroc; Netherlands:  Bank van Haften Labouchere;  New Zealand: Anz Banking Group
Ltd.; Norway: Den Norske Bank; Pakistan:  Citibank,  N.A.; Peru: Citibank, N.A.;
Poland:  Bank  Handlowy w  Warszawie  S.A.;  Portugal:  Banco  Espirito  Santo E
Comercial de Lisboa; Malaysia,  Singapore:  Development Bank of Singapore; South
Africa:  The First National Bank of Southern  Africa;  Sri Lanka:  Hong Kong and
Shanghai   Banking   Corporation;   Sweden:   Skandinaviska   Enskilda   Banken;
Switzerland: Bank Leu; Turkey: Citibank, N.A.; Venezuela: Citibank, N.A.
                                                             
                                       4.
                             Portfolio Transactions

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

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

We pay a  commission  rate  that we  believe  is  appropriate  to  give  maximum
assurance that our brokers will provide us, on a continuing  basis,  the highest
level of brokerage  services  available.  While we do not always seek the lowest
possible  commissions on particular trades, we believe that our commission rates
are in line with the rates that many other  institutions  pay.  Our  traders are
authorized  to pay brokerage  commissions  in excess of those that other brokers
might  accept  on the  same  transactions  in  recognition  of the  value of the
services  performed  by the  executing  brokers,  viewed in terms of either  the
particular  transaction  or the  overall  responsibilities  of Lord  Abbett with
respect to us and the other accounts they manage.  Such services include showing
us trading  opportunities  including  blocks,  a willingness and ability to take
positions in  securities,  knowledge of a particular  security or market  proven
ability to handle a particular type of trade, confidential treatment, promptness
and reliability.
<PAGE>
Some of these brokers also provide research  services at least some of which are
useful to Lord Abbett in their overall  responsibilities  with respect to us and
the other accounts they manage. Research includes the furnishing of analyses and
reports concerning issuers, industries, securities, economic factors and trends,
portfolio  strategy and the  performance  of accounts and trading  equipment and
computer software  packages,  acquired from third-party  suppliers,  that enable
Lord Abbett to access various  information  bases.  Such services may be used by
Lord Abbett in servicing all their  accounts,  and not all of such services will
necessarily  be used by Lord Abbett in connection  with their  management of the
Fund; conversely,  such services furnished in connection with brokerage on other
accounts  managed by Lord Abbett may be used in connection with their management
of the  Fund,  and not all of such  services  will  necessarily  be used by Lord
Abbett in connection  with their advisory  services to such other  accounts.  We
have been advised by Lord Abbett that  research  services  received form brokers
cannot be allocated to any  particular  account,  are not a substitute  for Lord
Abbett's  services but are  supplemental  to their own research effort and, when
utilized, and 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.

For the fiscal years ended October 31, 1997, 1996 and 1995, Affiliated Fund paid
total  commissions  to  independent   dealers  of  $7,681,037,   $5,897,259  and
$6,542,354, respectively.

For the period  December 13, 1995  (commencement  of operations) to November 30,
1996 and the year  ended  November  30,  1997,  the  Small-Cap  Fund paid  total
commissions   to   independent   broker-dealers   of  $45,266   and   1,812,425,
respectively.

For the period December 13, 1996  (commencement  of operations)  through October
31,  1997,  the  International   Fund  paid  total  commissions  to  independent
broker-dealers of $108,270.

                                       5.
                             Purchases, Redemptions
                            and Shareholder Services

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

<PAGE>
As disclosed in the Prospectus, we calculate our net asset value as of the close
of the New York Stock  Exchange  ("NYSE")  on each day that the NYSE is open for
trading by dividing our total net assets by the number of shares  outstanding at
the time of  calculation.  The NYSE is closed on  Saturdays  and Sundays and the
following  holidays -- New Year's Day, Martin Luther King, Jr. Day,  Presidents'
Day, Good Friday,  Memorial Day,  Independence Day, Labor Day,  Thanksgiving and
Christmas.

Each 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 (Trustees).

The net asset  value per share  for the  Class Y shares  will be  determined  by
taking Class Y shares net assets and dividing by shares outstanding. Our Class Y
shares will be offered at net asset value.

Each Fund has entered into a distribution agreement with Lord Abbett Distributor
LLC, a New York  limited  liability  company  ("Lord  Abbett  Distributor")  and
subsidiary  of Lord Abbett under which Lord Abbett  Distributor  is obligated to
use its best efforts to find purchasers for the shares of each 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  describes  the  Telephone  Exchange
Privilege.  You may  exchange  some or all of your Y shares  for Y shares of any
Lord  Abbett-sponsored  funds  currently  offering Class Y shares to the public.
Currently those other funds consist of Lord Abbett Investment Trust - Core Fund,
Strategic Core Fund,  Bond-Debenture  Fund,  Developing Growth Fund, and Mid-Cap
Value 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 each Prospectus for expedited redemption procedures.

The right to redeem and receive payment, as described in each 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  (Trustees) may authorize redemption of all of the shares
in any  account  in which  there are  fewer  than 25  shares  (Affiliated  Fund,
Small-Cap Fund, Growth  Opportunities  Fund, and High Yield Fund), and 60 shares
(International  Fund).  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 6 month's 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.

 <PAGE>
                                      6.
                                Past Performance

Each Fund computes the 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 each Prospectus.  The ending redeemable
value  is  determined  by  assuming  a  complete  redemption  at the  end of the
period(s) covered by the 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 Y  SHARE  PERFORMANCE.  Using  the  computation  method  described  above,
Affiliated  Fund's total return for Class Y shares for the period from inception
(March  27,  1998) to April 30,  1998 was .20%.  For the period  from  inception
(December 30, 1997) to May 31, 1998, the total return for the Small-Cap Fund was
6.50%. For the period from inception  (December 30, 1997) to April 30, 1998, the
total return for the International Fund was 28.90% (not annualized).

Our yield  quotation  for Class Y shares is based on a 30-day  period ended on a
specified date,  computed by dividing the net investment income per share earned
during the period by the net asset value per share of such class on the last day
of the period.  This is determined by finding the following  quotient:  take the
dividends and interest earned during the period for the class minus its expenses
accrued for the period and divide by the product of (i) the average daily number
of Class  shares  outstanding  during the period  that were  entitled to receive
dividends  and (ii) the net asset  value per share of such class on the last day
of the period.  To this  quotient add one. This sum is multiplied by itself five
times.  Then one is subtracted from the product of this  multiplication  and the
remainder  is  multiplied  by two.  Yields for Class Y shares do not reflect the
deduction of any sales charge.

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 each Fund or  repurchased or otherwise sold
may be  more  or less  than  your  tax  basis  in the  shares  at the  time  the
redemption,  repurchase  or sale is made.  Any gain or loss  will  generally  be
taxable  for  federal  income  tax  purposes.  Any loss  realized  on the  sale,
redemption  or  repurchase of a Fund's 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.

Each Fund will be subject to a four-percent  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.  Each Fund
intends to distribute to shareholders  each year an amount adequate to avoid the
imposition of such excise tax.

The writing of call options and other investment  techniques and practices which
each Fund may  utilize,  as described  above under  "Investment  Objectives  and
Policies," may create  "straddles" for United States federal income tax purposes
and may affect the character and timing of the  recognition  of gains and losses
by a Fund. Such transactions may increase the amount of short-term  capital gain
realized by each Fund,  which is taxed as ordinary  income when  distributed  to
shareholders.  Limitations  imposed by the  Internal  Revenue  Code on regulated
investment  companies may restrict each Fund's ability to engage in transactions
in options.
<PAGE>
Certain  futures  contracts  and certain  listed  options held by a Fund will be
required to be "marked to market" for federal income tax purpose,  i.e., treated
as having  been sold at their  fair  market  value on the last day of the Fund's
taxable year (referred to as Section 1256 Contracts).  Sixty percent of any gain
or loss recognized on actual or deemed sales of such Section 1256 Contracts will
be treated as long-term  capital gain or loss, and 40% of such gain or loss will
be treated as  short-term  capital  gain or loss.  Each Fund may be  required to
defer the recognition of losses on securities and options and futures  contracts
to the extent of any recognized gain on offsetting positions held by the Fund.

As described in the  Prospectus  under "How We Invest - Risk Factors," each 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  shareholders  of each Fund
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
each Fund.

Gains and losses realized by each 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 either Fund purchases shares in certain foreign investment  entities,  called
"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  in respect to
deferred taxes arising from such distributions or gains.

If a Fund were to invest in a passive foreign investment company with respect to
which a 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 a Fund.

Dividends paid by a Fund will 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 advisor
regarding  U.S.  and foreign tax  consequences  of the  ownership of shares of a
Fund,  including a 30% (or lower treaty rate) United States  withholding  tax on
dividends representing ordinary income and net short-term capital gains, and the
applicability  of United States gift and estate taxes to non-United  States gift
and estate taxes to non-United States persons who own Fund shares.
<PAGE>
                                       8.
                           Information About the Funds

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

                                       9.
                              Financial Statements

The  financial  statements  for the fiscal  year ended  October  31,  1997,  the
semi-annual  period ended April 30,  1998,  and the reports of Deloitte & Touche
LLP,  independent  auditors,  on such financial statements contained in the 1997
Annual  Report to  Shareholders  and the April 30,  1998  Semi-Annual  Report to
shareholders of Lord Abbett  Affiliated  Fund, Inc. are  incorporated  herein by
reference  to such  financial  statements  and  reports  in  reliance  upon  the
authority of Deloitte & Touche LLP as experts in auditing and accounting.

The  financial  statements  for the fiscal year ended  November  30,  1997,  the
semi-annual  period  ended May 31,  1998,  and the report  thereon of Deloitte &
Touche LLP, independent  auditors, on such financial statements contained in the
1997 Annual Report to Shareholders of the Lord Abbett Research Fund, Inc. (which
includes Small-Cap Fund and Growth Opportunities Fund, formerly,  Mid-Cap Fund),
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.

The financial  statements for the period from December 13, 1996 (commencement of
operations)  to October 31, 1997, the  semi-annual  period ended April 30, 1998,
and the report of Deloitte & Touche LLP, independent auditors, on such financial
statements  contained in the 1997 Annual Report to  Shareholders  of Lord Abbett
Securities Trust (which includes  International Fund) 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.

The  financial  statements  for the fiscal year ended  November  30,  1997,  the
semi-annual  period  ended May 31,  1998,  and the report  thereon of Deloitte &
Touche LLP, independent  auditors, on such financial statements contained in the
1997 Annual Report to  Shareholders of the Lord Abbett  Investment  Trust (which
includes  High Yield  Fund) are  incorporated  by  reference  to such  financial
statements and report in reliance upon the authority of Deloitte & Touche LLP as
experts in auditing and accounting.



CONSENT OF INDEPENDENT AUDITORS


Lord Abbett Affiliated Fund, Inc.:

We consent to the incorporation by reference in Post-Effective  Amendment No. 75
to Registration Statement No. 2-10638 of our report dated May 29, 1998 appearing
in the  Semi-Annual  Report to  Shareholders  for the six months ended April 30,
1998 and our report dated  December 2, 1997  appearing  in the Annual  Report to
Shareholders  for the year ended  October 31, 1997,  and to the  reference to us
under the caption "Financial Highlights" in the Prospectus and to the references
to us under the captions "Investment Advisory and Other Services" and "Financial
Statements" in the Statement of Additional  Information,  both of which are part
of such Registration Statement.




DELOITTE & TOUCHE LLP
New York, New York
December 3, 1998


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