59 WALL STREET TRUST
497, 1999-02-26
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PROSPECTUS

                    The 59 Wall Street Tax Exempt Money Fund

                   21 Milk Street, Boston, Massachusetts 02109

================================================================================

     The 59 Wall Street Tax Exempt Money Fund is an open-end  investment company
which is a separate diversified portfolio of The 59 Wall Street Trust. Shares of
the Fund are offered by this Prospectus.

     The Fund is a type of mutual fund commonly known as a money market fund. It
is designed to be a cost  effective and convenient  means of making  substantial
investments in money market instruments.  The Fund's investment  objective is to
achieve as high a level of current income exempt from federal income taxes as is
consistent  with the  preservation  of capital and the maintenance of liquidity.
The net asset value of each of the Fund's shares is expected to remain  constant
at $1.00.  There can be no assurance that the  investment  objective of the Fund
will be achieved or that the net asset value per share will not vary.

     Investments  in the Fund are  neither  insured nor  guaranteed  by the U.S.
Government. Shares of the Fund are not deposits or obligations of, or guaranteed
by, Brown Brothers Harriman & Co., and the shares are not insured by the Federal
Deposit Insurance Corporation or any other federal,  state or other governmental
agency.

     The  Investment  Adviser  invests  at least  80% of the  Fund's  assets  in
securities  the  interest  on which is  exempt  from  federal  income  tax.  The
Investment  Adviser  does not  currently  intend to invest the Fund's  assets in
municipal  securities  whose  interest  is subject  to federal  income tax or in
municipal  securities  whose  interest  is  subject to the  federal  alternative
minimum tax.

     Brown  Brothers  Harriman  & Co.  is the  investment  adviser  to,  and the
administrator  and shareholder  servicing agent of the Fund.  Shares of the Fund
are offered at net asset value without a sales charge.

     This Prospectus,  which investors are advised to read and retain for future
reference,   sets  forth  concisely  the  information  about  the  Fund  that  a
prospective  investor  ought to know before  investing.  Additional  information
about the Fund has been filed with the Securities  and Exchange  Commission in a
Statement of Additional  Information,  dated February 16, 1999. This information
is incorporated herein by reference and is available without charge upon request
from the Fund's distributor, 59 Wall Street Distributors,  Inc., 21 Milk Street,
Boston, Massachusetts 02109.

- --------------------------------------------------------------------------------

   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 date of this Prospectus is February 16, 1999.


<PAGE>

                             TABLE OF CONTENTS
                                                                            Page
                                                                            ----
Expense Table .............................................................    3
Investment Objective and Policies .........................................    4
Investment Restrictions ...................................................    6
Purchase of Shares ........................................................    6
Redemption of Shares ......................................................    7
Management of the Trust ...................................................    8
Net Asset Value ...........................................................   11
Dividends and Distributions ...............................................   12
Taxes .....................................................................   12
Description of Shares .....................................................   14
Additional Information ....................................................   15
Appendix A ................................................................   16

                          TERMS USED IN THIS PROSPECTUS

Trust ................................. The 59 Wall Street Trust
Fund .................................. The 59 Wall Street Tax Exempt Money Fund
Investment Adviser and Administrator... Brown Brothers Harriman & Co.
Subadministrator....................... 59 Wall Street Administrators, Inc.
                                          ("59 Wall Street Administrators")
Distributor............................ 59 Wall Street Distributors, Inc.
                                          ("59 Wall Street Distributors")
1940 Act............................... The Investment Company Act of 1940,
                                          as amended.


                                       2
<PAGE>

EXPENSE TABLE
================================================================================

     The following table provides (i) a summary of estimated  expenses  relating
to purchases and sales of shares of the Fund, and the aggregate annual operating
expenses of the Fund,  as a  percentage  of average net assets of the Fund,  and
(ii) an example  illustrating  the dollar cost of such  estimated  expenses on a
$1,000 investment in the Fund.

                        SHAREHOLDER TRANSACTION EXPENSES

      Sales Load Imposed on Purchases..............................   None
      Sales Load Imposed on Reinvested Dividends...................   None
      Deferred Sales Load..........................................   None
      Redemption Fee...............................................   None

                         ANNUAL FUND OPERATING EXPENSES
                    (as a percentage of average net assets)

      Investment Advisory Fee.................................             0.15%
        12b-1 Fee.............................................   None
        Other Expenses
            Administration Fee ...............................   0.10%
            Shareholder Servicing/Eligible Institution Fee....   0.25
            Expenses Reimbursement Fee........................   0.15      0.50
                                                                 ----      ----
          Total Fund Operating Expenses.......................             0.65%
                                                                           ====

                      Example                               1 year      3 years
                      -------                               ------      -------
       A shareholder of the Fund would pay the following  
         expenses on a $1,000 investment, assuming (1) 5%
         annual  return,  and  (2) redemption at the end
         of each time period:............................     $ 7         $21
                                                              ---         ---

     The Example  should not be  considered a  representation  of past or future
expenses. Actual expenses may be greater or less than those shown. In connection
with the  Example,  please  note that $1,000 is  currently  less than the Fund's
minimum purchase  requirement.  The purpose of this table is to assist investors
in  understanding  the various costs and expenses that  shareholders of the Fund
bear directly or indirectly.  Under an expense payment agreement, 59 Wall Street
Administrators pays the Fund's expenses,  other than fees paid to Brown Brothers
Harriman & Co. under the Corporation's  Administration  Agreement and other than
expenses  relating to the  organization  of the Fund.  If this  expense  payment
agreement was not in place,  the "Other Expenses" would be expected to be 0.54%,
total Fund operating  expenses would be expected to be 0.69% and the shareholder
expenses  reflected in the example above would be $7 and $22,  respectively  for
the Fund. (See "Expense Payment Agreement.")

     For  more  information  with  respect  to  the  expenses  of the  Fund  see
"Management of the Trust" herein.


                                       3
<PAGE>

INVESTMENT OBJECTIVE AND POLICIES
================================================================================

     The  investment  objective  of the  Fund is to  achieve  as high a level of
current  income  exempt from  federal  income  taxes as is  consistent  with the
preservation of capital and the maintenance of liquidity.

     The  investment  objective of the Fund is a  fundamental  policy and may be
changed  only with the  approval  of the  holders of a  "majority  of the Fund's
outstanding  voting  securities" (as defined in the 1940 Act). (See  "Additional
Information" in this Prospectus.)

     Also, as a fundamental  policy, the Investment Adviser invests at least 80%
of the Fund's assets in securities  the interest on which is exempt from federal
income  tax.  The  investment  policies of the Fund as  described  below are not
fundamental  and may be changed  without such approval.  The Investment  Adviser
does not currently  intend to invest the Fund's  assets in municipal  securities
whose interest is subject to federal income tax or in municipal securities whose
interest is subject to the federal alternative minimum tax.

     The Investment  Adviser may invest more than 25% of the Fund's total assets
in  securities  that  finance  similar  projects,  such  as  those  relating  to
education, health care, transportation and utilities.

     In buying and selling  securities for the Fund,  the Adviser  complies with
industry-standard  requirements  for money market funds  regarding  the quality,
maturity and diversification of the Fund's  investments.  The Investment Adviser
stresses maintaining a stable $1.00 share price, liquidity and income.

     Municipal  securities are issued to raise money for a variety of public and
private purposes,  including general financing for state and local  governments,
or financing for a specific project or public facility. Municipal securities may
be fully or partially backed by the local government, by the credit of a private
issuer,  by the  current or  anticipated  revenues  from a  specific  project or
specific  assets,  or by domestic or foreign  entities  providing credit support
such as letters of credit,  guarantees  or  insurance.  (See Appendix A for more
detail.)

                                  Risk Factors

     Many factors  affect the Fund's  performance.  The Fund's yield will change
daily based on changes in interest rates and other market  conditions.  Although
the  Fund is  managed  to  maintain  a stable  $1.00  share  price,  there is no
guarantee that the Fund will be able to do so. For example,  a major increase in
interest  rates or a decrease in the credit  quality of the issuer of one of the
Fund's  investments  could  cause the  Fund's  share  price to  decrease.  It is
important to note that neither the Fund nor its yield is  guaranteed by the U.S.
Government.

     The following factors may significantly affect the Fund's performance:

     Municipal  Market  Volatility.  Municipal  securities can be  significantly
affected by political  changes as well as  uncertainties in the municipal market
related to taxation,  legislative  changes,  or the rights of municipal security
holders.  Because many municipal  securities are issued to finance similar types
of projects, especially those relating to education, health care, transportation
and  utilities,  conditions  in those  sectors can affect the overall  municipal
market.  In  addition,  changes  in the  financial  condition  of an  individual
municipal insurer can affect the overall municipal market.

     Interest  Rate  Changes.  Money market  securities  have varying  levels of
sensitivity  to changes in  interest  rates.  In  general,  the price of a money
market  security can fall when  interest  rates rise and can rise when  interest
rates fall.  Securities with longer  maturities and the securities of issuers in
the financial  services industry can be more sensitive to interest rate changes.
Short-term securities tend to react to changes in short-term interest rates.


                                       4
<PAGE>

     Issuer-Specific  Changes.  Changes in the financial condition of an issuer,
changes in specific  economic or political  conditions  that affect a particular
type of issuer,  and changes in general  economic or  political  conditions  can
adversely affect the credit quality or value of an issuer's securities. Entities
providing credit support or a maturity-shortening structure also can be affected
by these types of changes. Municipal securities backed by current or anticipated
revenues from a specific  project or specific assets can be negatively  affected
by the  discontinuance  of the taxation  supporting the project or assets or the
inability  to  collect  revenues  for the  project  or  from  the  assets.  If a
security's  structure  fails to function as intended,  the security could become
taxable or decline in value.

     In response to market, economic, political or other conditions, the Adviser
may temporarily use a different  investment strategy for defensive purposes.  If
the Adviser does so, different factors could affect the Fund's performance,  and
the Fund may distribute income subject to federal income tax.

                               Portfolio Brokerage

     The  securities  in which the Fund  invests  are  traded  primarily  in the
over-the-counter  market  on a net  basis  and do not  normally  involve  either
brokerage  commissions or transfer taxes. Where possible  transactions on behalf
of the Fund are  entered  directly  with the  issuer or from an  underwriter  or
market  maker  for the  securities  involved.  Purchases  from  underwriters  of
securities  may include a  commission  or  concession  paid by the issuer to the
underwriter,  and purchases from dealers  serving as market makers may include a
spread between bid and asked price.  The policy of the Fund regarding  purchases
and sales of securities is that primary  consideration is given to obtaining the
most favorable prices and efficient  executions of  transactions.  In seeking to
implement the Fund's policies,  the Investment Adviser effects transactions with
those brokers and dealers who the Investment  Adviser  believes provide the most
favorable  prices  and are  capable of  providing  efficient  executions.  While
reasonably  competitive  spreads or commissions are sought for the Fund, it will
not  necessarily  be paying the lowest  spread or commission  available.  If the
Investment  Adviser believes such prices and executions are obtainable from more
than one  broker or  dealer,  it may give  consideration  to  placing  portfolio
transactions  with those brokers and dealers who also furnish research and other
services to the Fund or the Investment Adviser.  Such services may include,  but
are not  limited  to, any one or more of the  following:  information  as to the
availability  of  securities  for  purchase  or  sale;  statistical  or  factual
information or opinions pertaining to investment;  and appraisals or evaluations
of portfolio securities.

   On those  occasions when Brown Brothers  Harriman & Co. deems the purchase or
sale of a  security  to be in the  best  interests  of the Fund as well as other
customers,  Brown Brothers Harriman & Co., to the extent permitted by applicable
laws and regulations,  may, but is not obligated to, aggregate the securities to
be sold or purchased  for the Fund with those to be sold or purchased  for other
customers  in order to obtain  the best  execution,  including  lower  brokerage
commissions,  if  appropriate.  In such event,  allocation of the  securities so
purchased or sold as well as any expenses  incurred in the  transaction are made
by Brown  Brothers  Harriman  & Co. in the  manner it  considers  to be the most
equitable  and  consistent  with its  fiduciary  obligations  to its  customers,
including the Fund. In some instances, this procedure might adversely affect the
Fund.


                                       5
<PAGE>

INVESTMENT RESTRICTIONS
================================================================================

     The Statement of Additional  Information for the Fund includes a listing of
the  specific  investment   restrictions  which  govern  the  Fund's  investment
policies.  Certain  of these  investment  restrictions  are  deemed  fundamental
policies and may be changed only with the approval of the holders of a "majority
of the Fund's  outstanding  voting securities" (as defined in the 1940 Act) (see
"Additional Information" in this Prospectus). Excluding the investment of all of
the Fund's assets in an open-end  investment company with substantially the same
investment  objective,  policies and restrictions as the Fund, not more than 10%
of the net assets of the Fund may be invested in securities  that are subject to
legal or contractual  restrictions on resale. In addition, money is not borrowed
in an amount in excess of 331/3% of the assets of the Fund.  It is intended that
money will be borrowed only from banks and only either to  accommodate  requests
for the redemption of shares while effecting an orderly liquidation of portfolio
securities or to maintain liquidity in the event of an unanticipated  failure to
complete a portfolio security transaction or other similar situations.

     As a non-fundamental  policy, up to 5% of the Fund's assets may be invested
in repurchase  agreements although it is the intention of the Investment Adviser
to do so  only  when  other  means  of  efficiently  investing  cash  flows  are
unavailable.  All repurchase  agreement  transactions are collateralized by U.S.
Treasury  securities  and are  entered  into only  with  "primary  dealers"  (as
designated  by  the  Federal  Reserve  Bank  of New  York)  in  U.S.  Government
securities. A shareholder of the Fund is subject to state and local income taxes
in most  jurisdictions on the portion of dividends  received from the Fund which
is derived from income from  repurchase  agreements.  It is the intention of the
Investment Adviser to minimize the portion of the Fund's income which is derived
from repurchase agreements to the extent practicable.

     The Fund is classified  as  "diversified"  under the 1940 Act,  which means
that at least 75% of its total assets is represented by cash;  securities issued
by the U.S. Government, its agencies and instrumentalities; and other securities
limited in  respect  of any one  issuer to an amount no  greater  than 5% of the
Fund's total assets (other than securities  issued by the U.S.  Government,  its
agencies or instrumentalities).

PURCHASE OF SHARES
================================================================================

     Shares of the Fund are  offered  on a  continuous  basis at their net asset
value  without a sales  charge.  The Trust  reserves the right to determine  the
purchase  orders for Fund shares that it will accept.  Shares of the Fund may be
purchased on any day the New York Stock Exchange is open for regular trading and
New York banks are open for business if the Trust  receives  the purchase  order
and  acceptable  payment  for such  order  prior to 4:00  P.M.,  New York  time.
Purchases of Fund shares are then executed at the net asset value per share next
determined on that same day. Shares are entitled to dividends declared,  if any,
starting  as of the next  business  day  following  the day a purchase  order is
executed on the books of the Trust.

     An investor who has an account with an Eligible  Institution  (see page 11)
or a Financial  Intermediary  (see page 10) may place  purchase  orders for Fund
shares  with  the  Trust   through  that  Eligible   Institution   or  Financial
Intermediary,  which  holds such  shares in its name on behalf of that  customer
pursuant  to   arrangements   made  between  that  customer  and  that  Eligible
Institution  or  Financial  Intermediary.  Each  Eligible  Institution  and each
Financial  Intermediary  may  establish  and  amend  from time to time a minimum
initial and a minimum 


                                       6
<PAGE>

subsequent purchase requirement for its customers.  Each Eligible Institution or
Financial  Intermediary  arranges  payment  for Fund  shares  on  behalf  of its
customers.  A  transaction  fee may be charged by an Eligible  Institution  or a
Financial Intermediary on the purchase of Fund shares.

     An investor who does not have an account with an Eligible  Institution or a
Financial Intermediary must place purchase orders for Fund shares with the Trust
through the Fund's Shareholder Servicing Agent. Such an investor has such shares
held  directly  in  the  investor's  name  on the  books  of  the  Trust  and is
responsible  for arranging for the payment of the purchase  price of Fund shares
to the  Trust's  account at State  Street  Bank and Trust  Company,  the Trust's
custodian  bank.  Such payment  must be in the form of either (a) an  inter-bank
wire transfer of "available  funds" prior to 4:00 P.M.,  New York time, in which
case a purchase  order placed prior to 4:00 P.M., New York time is executed that
day, or (b) a cashier's  check drawn on a U.S.  bank or a check  certified  by a
U.S.  bank,  in which case a purchase  order is executed  after such a check has
been converted into "available" funds, generally the next business day after the
check is received  for the Trust by State Street Bank and Trust  Company.  Brown
Brothers  Harriman  & Co.,  as  the  Fund's  Shareholder  Servicing  Agent,  has
established a minimum initial purchase  requirement for the Fund of $100,000 and
a minimum subsequent purchase requirement for the Fund of $25,000. These minimum
purchase requirements may be amended from time to time.

     Inquiries  regarding  the manner in which  purchases  of Fund shares may be
effected and other  matters  pertaining  to the Fund should be directed to Brown
Brothers Harriman & Co., the Fund's Shareholder Servicing Agent. (See back cover
for address and phone number.)

REDEMPTION OF SHARES
================================================================================

     A redemption  request must be received by the Trust prior to 4:00 P.M., New
York time on any day the New York Stock Exchange is open for regular trading and
New York banks are open for  business.  Such a redemption is executed at the net
asset value per share next determined on that same day. Proceeds of a redemption
are paid in "available"  funds generally on the next business day the redemption
request is executed, and in any event within seven days. A shareholder continues
to earn  dividends  declared,  if any,  through the  business  day a  redemption
request is executed on the books of the Trust.

     Shares  held by an Eligible  Institution  or a  Financial  Intermediary  on
behalf of a shareholder  must be redeemed  through that Eligible  Institution or
Financial  Intermediary  pursuant to arrangements  made between that shareholder
and  that  Eligible  Institution  or  Financial  Intermediary.   Proceeds  of  a
redemption are paid to that shareholder's  account at that Eligible  Institution
or Financial  Intermediary on a date established by the Eligible  Institution or
Financial  Intermediary.  A  transaction  fee  may  be  charged  by an  Eligible
Institution or a Financial Intermediary on the redemption of Fund shares.

     Shares held directly in the name of a shareholder on the books of the Trust
may be redeemed by  submitting a  redemption  request in good order to the Trust
through the Fund's Shareholder  Servicing Agent. (See back cover for address and
phone number.)  Proceeds  resulting  from such  redemption are paid by the Trust
directly to the shareholder.

     A shareholder  redeeming shares should be aware that the net asset value of
the Fund's shares may, in unusual circumstances,  decline below $1.00 per share.
Accordingly, a redemption request may result in payment of a dollar amount which
differs from the number of shares redeemed. (See "Net Asset Value".)

                            Redemptions By the Trust

     The Fund's Shareholder  Servicing Agent, each Eligible Institution and each
Financial  Intermediary  (see pages 10 and 11) may establish and amend


                                       7
<PAGE>

from time to time for their respective  customers a minimum account size. If the
value of a shareholder's holdings in the Fund falls below that amount because of
a redemption of shares, the shareholder's  remaining shares may be redeemed.  If
such remaining shares are to be redeemed,  the shareholder is so notified and is
allowed 60 days to make an additional  investment to enable the  shareholder  to
meet the minimum requirement before the redemption is processed.  Brown Brothers
Harriman & Co., as the Fund's  Shareholder  Servicing  Agent,  has established a
minimum account size of $100,000.

                         Further Redemption Information

     In the event a shareholder  redeems all shares held in the Fund at any time
during the month,  all accrued but unpaid dividends are included in the proceeds
of the redemption and future purchases of shares of the Fund by such shareholder
would be subject to the Fund's minimum initial purchase requirements.

     An  investor  should  be aware  that  redemptions  from the Fund may not be
processed  if  a  completed  account   application  with  a  certified  taxpayer
identification number has not been received.

     A shareholder's right to receive payment with respect to any redemption may
be suspended or the payment of the redemption proceeds postponed for up to seven
days and for such other  periods as the 1940 Act may  permit.  (See  "Additional
Information" in the Statement of Additional Information.)

MANAGEMENT OF THE TRUST
================================================================================

                              Trustees and Officers

     The Trustees,  in addition to supervising the actions of the Administrator,
Investment Adviser and Distributor of the Fund, as set forth below,  decide upon
matters of general policy.  Because of the services rendered to the Trust by the
Investment Adviser and the Administrator, the Trust itself requires no employees
other  than  its  officers,  none of whom,  other  than  the  Chairman,  receive
compensation  from  the  Fund and all of whom,  other  than  the  Chairman,  are
employed by 59 Wall Street  Administrators.  (See "Trustees and Officers" in the
Statement of Additional Information.)

   The Trustees of the Trust are:
      J.V. Shields, Jr.
         Chairman and Chief Executive Officer of Shields & Company

      Eugene P. Beard
         Vice Chairman, Finance and Operations of The Interpublic Group 
           of Companies

      David P. Feldman
         Retired, Chairman and Chief Executive
            Officer of AT&T Investment Management Corporation

      Alan G. Lowy
         President, Lowy Industries

      Arthur D. Miltenberger
         Retired, Vice President and Chief Financial Officer of Richard K. 
           Mellon and Sons

                               Investment Adviser

     The  Investment  Adviser  to the Fund is  Brown  Brothers  Harriman  & Co.,
Private Bankers, a New York limited partnership established in 1818. The firm is
subject to  examination  and  regulation by the  Superintendent  of Banks of the
State  of New York and by the  Department  of  Banking  of the  Commonwealth  of
Pennsylvania.  The firm is also subject to  supervision  and  examination by the
Commissioner of Banks of the Commonwealth of Massachusetts.

     Brown  Brothers  Harriman & Co.  provides  investment  advice and portfolio
management  services  to the Fund.  Subject to the  general  supervision  of the
Trust's Trustees,  Brown Brothers Harriman & Co. makes the day-to-day investment
decisions  for the Fund,  places the purchase and sale orders for the  portfolio
transactions of the Fund, and generally  manages the Fund's


                                       8
<PAGE>

investments.  Brown Brothers Harriman & Co. provides a broad range of investment
management  services for customers in the United States and abroad.  At December
31, 1998, it managed total assets of approximately $32 billion.

     As  compensation  for the services  rendered and related  expenses  such as
salaries of advisory  personnel borne by Brown Brothers Harriman & Co. under the
Investment Advisory  Agreement,  Brown Brothers Harriman & Co. receives from the
Fund an annual fee,  computed daily and payable  monthly,  equal to 0.15% of the
Fund's average daily net assets.  Brown Brothers Harriman & Co. also receives an
annual  administration  fee from the Fund equal to 0.10% of the  Fund's  average
daily net assets and an annual  shareholder  servicing/eligible  institution fee
from  the  Fund  equal to 0.25% of the  average  daily  net  assets  of the Fund
represented  by shares  owned  during  the  period by  customers  for whom Brown
Brothers Harriman & Co. is the holder or agent of record.

     The investment  advisory  services of Brown Brothers  Harriman & Co. to the
Fund are not exclusive  under the terms of the  Investment  Advisory  Agreement.
Brown  Brothers  Harriman & Co. is free to and does render  investment  advisory
services to others, including other registered investment companies.

     Pursuant  to a license  agreement  between  the  Trust  and Brown  Brothers
Harriman & Co. dated August 24,  1989,  as amended as of December 15, 1993,  the
Trust may continue to use in its name "59 Wall Street", the current and historic
address of Brown  Brothers  Harriman & Co. The  agreement  may be  terminated by
Brown Brothers  Harriman & Co. at any time upon written notice to the Trust upon
the  expiration or earlier  termination  of any  investment  advisory  agreement
between  the  Trust or any  investment  company  in which a series  of the Trust
invests all of its assets and Brown Brothers  Harriman & Co.  Termination of the
agreement would require the Trust to change its name and the name of the Fund to
eliminate all reference to "59 Wall Street".

     Pursuant to license  agreements  between Brown Brothers  Harriman & Co. and
each of 59 Wall Street  Administrators  and 59 Wall Street  Distributors (each a
"Licensee"),  dated June 22, 1993 and June 8, 1990, respectively,  each Licensee
may  continue to use in its name "59 Wall  Street",  the  current  and  historic
address of Brown Brothers  Harriman & Co., only if Brown Brothers Harriman & Co.
does not terminate the  respective  license  agreement,  which would require the
Licensee to change its name to eliminate all reference to "59 Wall Street".

                                  Administrator

     Brown  Brothers  Harriman & Co. acts as  Administrator  of the Trust.  (See
"Administrator" in the Statement of Additional Information.)

     In its capacity as Administrator, Brown Brothers Harriman & Co. administers
all aspects of the Trust's  operations subject to the supervision of the Trust's
Trustees except as set forth below under  "Distributor".  In connection with its
responsibilities  as  Administrator  and  at its  own  expense,  Brown  Brothers
Harriman & Co. (i) provides the Trust with the services of persons  competent to
perform such supervisory, administrative and clerical functions as are necessary
in order to provide  effective  administration  of the Trust;  (ii) oversees the
performance of administrative and professional  services to the Trust by others,
including the Fund's Custodian,  Transfer and Dividend  Disbursing Agent;  (iii)
provides  the Trust with  adequate  office  space and  communications  and other
facilities; and (iv) prepares and/or arranges for the preparation,  but does not
pay for, the periodic  updating of the Trust's  registration  statement  and the
Fund's  prospectus,  the printing of such  documents  for the purpose of filings
with the Securities and Exchange Commission and state securities administrators,
and the preparation of tax returns for the Trust and for the Fund and reports to
the Fund's shareholders and the Securities and Exchange Commission.

     For the services  rendered to the Trust and related expenses borne by Brown
Brothers  Harriman  & Co.,  as  Administrator,  Brown  Brothers  Harriman  & Co.
receives from the Fund an annual fee, computed


                                       9
<PAGE>

daily  and  payable  monthly,  equal to 0.10% of the  Fund's  average  daily net
assets.

     Pursuant to a  Subadministrative  Services  Agreement  with Brown  Brothers
Harriman & Co., 59 Wall Street  Administrators  performs such  subadministrative
duties for the Trust as are from time to time  agreed upon by the  parties.  The
offices of 59 Wall Street Administrators are located at 21 Milk Street,  Boston,
Massachusetts 02109. 59 Wall Street Administrators is a wholly-owned  subsidiary
of Signature  Financial Group,  Inc.  ("SFG").  SFG is not affiliated with Brown
Brothers Harriman & Co. 59 Wall Street Administrators'  subadministrative duties
may include providing equipment and clerical personnel necessary for maintaining
the  organization  of the Trust,  participation  in the preparation of documents
required  for  compliance  by the Trust with  applicable  laws and  regulations,
preparation  of certain  documents in  connection  with meetings of Trustees and
shareholders of the Trust, and other functions that would otherwise be performed
by the  Administrator as set forth above. For performing such  subadministrative
services,  59 Wall Street  Administrators  receives such compensation as is from
time  to  time  agreed  upon,  but  not in  excess  of the  amount  paid  to the
Administrator from the Fund.

                           Shareholder Servicing Agent

     The Trust has entered into a  shareholder  servicing  agreement  with Brown
Brothers  Harriman & Co.  pursuant  to which Brown  Brothers  Harriman & Co., as
agent for the Fund, among other things:  answers  inquiries from shareholders of
and prospective  investors in the Fund regarding account status and history, the
manner in which  purchases  and  redemptions  of Fund shares may be effected and
certain  other  matters  pertaining  to the Fund;  assists  shareholders  of and
prospective  investors in the Fund in designating and changing dividend options,
account designations and addresses;  and provides such other related services as
the Trust or a shareholder of or prospective investor in the Fund may reasonably
request.  For these  services,  Brown Brothers  Harriman & Co. receives from the
Fund an annual fee,  computed daily and payable  monthly,  equal to 0.25% of the
average  daily net assets of the Fund  represented  by shares  owned  during the
period for which payment was being made by  shareholders  who did not hold their
shares with an Eligible Institution.

                            Financial Intermediaries

     From time to time,  the Fund's  Shareholder  Servicing  Agent  enters  into
contracts with banks,  brokers and other  financial  intermediaries  ("Financial
Intermediaries")  pursuant to which a customer of the Financial Intermediary may
place purchase orders for Fund shares through that Financial  Intermediary which
holds  such  shares  in its name on behalf of that  customer.  Pursuant  to such
contract,  each Financial  Intermediary as agent with respect to shareholders of
and  prospective  investors  in the Fund  who are  customers  of that  Financial
Intermediary, among other things: provides necessary personnel and facilities to
establish and maintain certain  shareholder  accounts and records enabling it to
hold,  as agent,  its  customers'  shares in its name or its nominee name on the
shareholder records of the Trust;  assists in processing purchase and redemption
transactions;  arranges for the wiring of funds; transmits and receives funds in
connection  with  customer  orders to  purchase  or  redeem  shares of the Fund;
provides periodic  statements  showing a customer's  account balance and, to the
extent  practicable,  integrates such information  with  information  concerning
other customer  transactions  otherwise  effected with or through it; furnishes,
either  separately  or on an  integrated  basis  with  other  reports  sent to a
customer,  monthly and annual  statements and confirmations of all purchases and
redemptions of Fund shares in a customer's account;  transmits proxy statements,
annual reports,  updated prospectuses and other communications from the Trust to
its  customers;  and  receives,  tabulates  and  transmits to the Trust  proxies
executed by its customers with respect to meetings of  shareholders of the Fund.
For these  services,  the  Financial  Intermediary  receives  such fees from the
Shareholder  Servicing Agent as may be agreed upon from time to time between the


                                       10
<PAGE>

Shareholder Servicing Agent and such Financial Intermediary.

                              Eligible Institutions

     The Trust enters into eligible  institution  agreements with banks, brokers
and other financial institutions pursuant to which that financial institution as
agent for the Trust with respect to shareholders of and prospective investors in
the Fund who are  customers of that  financial  institution  among other things:
provides  necessary  personnel and facilities to establish and maintain  certain
shareholder  accounts and records  enabling it to hold, as agent, its customers'
shares in its name or its nominee name on the shareholder  records of the Trust;
assists in processing  purchase and  redemption  transactions;  arranges for the
wiring of funds; transmits and receives funds in connection with customer orders
to purchase or redeem shares of the Fund; provides periodic statements showing a
customer's  account  balance  and, to the extent  practicable,  integrates  such
information with information  concerning other customer  transactions  otherwise
effected with or through it;  furnishes,  either  separately or on an integrated
basis with other reports sent to a customer,  monthly and annual  statements and
confirmations  of all purchases and  redemptions  of Fund shares in a customer's
account;  transmits proxy statements,  annual reports,  updated prospectuses and
other  communications from the Trust to its customers;  and receives,  tabulates
and  transmits to the Trust proxies  executed by its  customers  with respect to
meetings  of  shareholders  of the Fund.  For  these  services,  each  financial
institution  receives  from the Fund an annual fee,  computed  daily and payable
monthly,  equal to 0.25% of the average daily net assets of the Fund represented
by shares owned during the period for which  payment was being made by customers
for whom the financial institution was the holder or agent of record.

                                   Distributor

     59 Wall Street Distributors acts as exclusive  Distributor of shares of the
Fund. Its office is located at 21 Milk Street,  Boston,  Massachusetts 02109. 59
Wall  Street  Distributors  is a  wholly-owned  subsidiary  of SFG.  SFG and its
affiliates currently provide  administration and distribution services for other
registered  investment companies.  The Trust pays for the preparation,  printing
and  filing of copies  of the  Trust's  registration  statement  and the  Fund's
prospectus  as  required  under  federal  and  state   securities   laws.   (See
"Distributor" in the Statement of Additional Information.)

     59 Wall Street  Distributors  holds itself  available  to receive  purchase
orders for Fund shares.

                             Custodian, Transfer and
                            Dividend Disbursing Agent

     State Street Bank and Trust Company  ("State  Street" or the  "Custodian"),
225 Franklin Street,  P.O. Box 351, Boston,  Massachusetts  02110, is the Fund's
Custodian,   Transfer  and  Dividend  Disbursing  Agent.  As  Custodian,  it  is
responsible  for  maintaining   books  and  records  of  the  Fund's   portfolio
transactions and holding the Fund's portfolio  securities and cash pursuant to a
custodian  agreement with the Trust. Cash is held for the Fund in demand deposit
accounts at the Custodian. Subject to the supervision of the Administrator,  the
Custodian maintains the Fund's accounting and portfolio  transaction records and
for each day  computes  the Fund's net asset value,  net  investment  income and
dividend  payable.  As Transfer and Dividend  Disbursing Agent it is responsible
for maintaining the books and records detailing ownership of the Fund's shares.

                              Independent Auditors

     Deloitte & Touche LLP are the independent auditors for the Fund.

NET ASSET VALUE
================================================================================

     The Fund's net asset value per share is determined once daily at 4:00 P.M.,
New York  time on each  day the New  York  Stock  Exchange  is open for  regular
trading  and New York  banks are open for  business.  The  determination  of the
Fund's net asset  value per share is made by  subtracting  from


                                       11
<PAGE>

the value of the  total  assets of the Fund the  amount of its  liabilities  and
dividing the  difference by the number of shares of the Fund  outstanding at the
time the  determination  is made. It is anticipated that the net asset value per
share of the Fund will remain  constant at $1.00. No assurance can be given that
this goal can be achieved.

     The  Fund's  assets  are  valued  by using  the  amortized  cost  method of
valuation.  This method  involves  valuing a security at its cost at the time of
purchase  and  thereafter  assuming a constant  amortization  to maturity of any
discount or premium,  regardless of the impact of fluctuating  interest rates on
the market value of the  instrument.  The market  value of the Fund's  portfolio
securities  fluctuates  on the basis of the  creditworthiness  of the issuers of
such  securities  and on the  levels  of  interest  rates  generally.  While the
amortized cost method provides certainty in valuation,  it may result in periods
when the value so  determined  is higher or lower  than the price the Fund would
receive if the security  were sold.  (See "Net Asset Value" in the  Statement of
Additional Information.)

DIVIDENDS AND DISTRIBUTIONS
================================================================================

     All the Fund's net income and short-term  capital gains and losses, if any,
are declared as a dividend daily and paid monthly.

     Net income of the Fund  consists  of (i)  accrued  interest,  accretion  of
discount and amortization of premium,  (ii) plus net short-term capital gains or
losses realized on sales of portfolio securities of the Fund, and (iii) less the
accrued expenses of the Fund applicable to that dividend period. (See "Net Asset
Value".)

     Determination  of the Fund's net  income is made  immediately  prior to the
determination  of the net asset  value per share at 4:00 P.M.,  New York time on
each day the New York Stock  Exchange is open for  regular  trading and New York
banks are open for  business.  Net income for days other than such business days
is  determined  as of 4:00  P.M.,  New York  time on the  immediately  preceding
business day.  Dividends  declared are payable to  shareholders of record on the
date of determination.  Shares purchased through submission of a purchase order,
prior to 4:00 P.M.,  New York time on such business day begin earning  dividends
on the following  business day.  Shares  redeemed  qualify for a dividend on the
business day that the redemption is executed. (See "Redemption of Shares".)

     Unless a shareholder  whose shares are held  directly in the  shareholder's
name on the books of the Trust elects to have dividends paid in cash,  dividends
are automatically  reinvested in additional Fund shares without reference to the
minimum  subsequent  purchase  requirement.  Such shareholder who elects to have
dividends paid in cash receives a check in the amount of such dividends.  In the
event a  shareholder  redeems all shares held at any time during the month,  all
accrued but unpaid  dividends are included in the proceeds of the redemption and
future  purchases of shares by such  shareholder  will be subject to the minimum
initial  purchase  requirements.  The Trust  reserves the right to  discontinue,
alter or limit  the  automatic  reinvestment  privilege  at any  time,  but will
provide shareholders prior written notice of any such discontinuance, alteration
or limitation.

     Each Eligible Institution and each Financial Intermediary may establish its
own policy with respect to the  reinvestment  of dividends  in  additional  Fund
shares.

TAXES
================================================================================

     Each year, the Trust intends to qualify the Fund and elect that the Fund be
treated as a separate "regulated  investment company" under the Internal Revenue
Code of 1986, as amended (the "Code").  Accordingly,  the Fund is not subject to
federal  income taxes on its net income and realized net


                                       12
<PAGE>

capital gains that are  distributed  to its  shareholders.  A 4%  non-deductible
excise  tax is  imposed  on the Fund to the  extent  that  certain  distribution
requirements  for the Fund for each calendar year are not met. The Trust intends
to meet such requirements.

     In  accordance  with the  investment  objective of the Fund, it is expected
that the Fund's net income is attributable to interest from municipal bonds and,
as a result,  dividends to  shareholders  are designated by the Trust as "exempt
interest dividends" under Section 852(b)(5) of the Code, which may be treated as
items of interest excludible from a shareholder's  gross income.  Although it is
not intended,  it is possible that the Fund may realize short-term capital gains
or losses  from  securities  transactions  as well as  taxable  interest  income
depending on market conditions.

     In accordance with Section  852(b)(5) of the Code, in order for the Fund to
be entitled to pay exempt interest  dividends to  shareholders,  at the close of
each quarter of its taxable  year, at least 50% of the value of its total assets
must consist of obligations whose interest is exempt from federal income tax.

     The non-exempt  portion of dividends is taxable to shareholders of the Fund
as ordinary  income,  whether such  dividends  are paid in cash or reinvested in
additional shares.  These dividends are not eligible for the  dividends-received
deduction allowed to corporate shareholders.

     The Code provides that interest on indebtedness incurred, or continued,  to
purchase or carry  shares of the Fund is not  deductible.  Further,  entities or
persons  who may be  "substantial  users" (or  persons  related to  "substantial
users") of facilities  financed by industrial  development  bonds should consult
with their own tax advisors before purchasing shares of the Fund.

     Under U.S. Treasury  regulations,  the Trust and each Eligible  Institution
are  required  to  withhold  and remit to the U.S.  Treasury a portion  (31%) of
dividends and capital gains  distributions on the accounts of those shareholders
who fail to provide a correct  taxpayer  identification  number (Social Security
Number for  individuals)  or to make required  certifications,  or who have been
notified  by the  Internal  Revenue  Service  that  they  are  subject  to  such
withholdings.  Prospective investors should submit an IRS Form W-9 to avoid such
withholding.

                              State and Local Taxes

     The  exemption  for federal  income tax purposes of dividends  derived from
interest on municipal  bonds does not  necessarily  result in an exemption under
the  income  or  other  tax  laws  of  any  state  or  local  taxing  authority.
Shareholders  of  the  Fund  may  be  exempt  from  state  and  local  taxes  on
distributions  of tax-exempt  interest  income  derived from  obligations of the
state  and/or  municipalities  of the state in which  they may reside but may be
subject  to tax on  income  derived  from  obligations  of other  jurisdictions.
Shareholders are advised to consult with their own tax advisors about the status
of distributions from the Fund in their own states and localities.

                                Foreign Investors

     The Fund is designed for  investors  who are either  citizens of the United
States or aliens subject to United States income tax. Prospective  investors who
are not citizens of the United  States and who are not aliens  subject to United
States  income tax are subject to United  States  withholding  tax on the entire
amount of all dividends. Therefore, such investors should not invest in the Fund
since alternative investments are available which would not be subject to United
States withholding tax.

                                Other Information

     Annual notification as to the tax status of capital gains distributions, if
any, is provided to  shareholders  shortly  after June 30, the end of the Fund's
fiscal year. Additional tax information is mailed to shareholders in January.

     This tax  discussion is based on the tax laws and  regulations in effect on
the date of this  Prospectus,  however such laws and  regulations are subject to
change.  Shareholders  and prospective  investors are urged to consult their tax
advisors   regarding   specific   questions   relevant   to   their   particular
circumstances.


                                       13
<PAGE>

DESCRIPTION OF SHARES
================================================================================

     The Trust is an open-end management investment company organized on June 7,
1983, as an unincorporated  business trust under the laws of the Commonwealth of
Massachusetts.  Its offices are located at 21 Milk Street, Boston, Massachusetts
02109; its telephone number is (617) 423-0800.

     Pursuant to the Trust's  Declaration of Trust, the Trustees have authorized
the issuance of an unlimited number of full and fractional shares of each series
of the Trust,  one of which is the Fund.  The Trustees may divide or combine the
shares into a greater or lesser number of shares  without  thereby  changing the
proportionate beneficial interest in the Trust and may authorize the creation of
additional  series  of  shares,  the  proceeds  of which  would be  invested  in
separate,  independently managed portfolios. Currently there are three series in
addition to the Fund.

     The Trustees themselves have the power to alter the number and the terms of
office of the Trustees,  to lengthen their own terms,  or to make their terms of
unlimited duration subject to certain removal  procedures,  and to appoint their
own  successors;  provided  that at least  two-thirds  of the Trustees have been
elected by the shareholders.

     Each share of the Fund  represents  an equal  proportional  interest in the
Fund with each other  share.  Upon  liquidation  of the Fund,  shareholders  are
entitled  to  share  pro  rata in the  net  assets  of the  Fund  available  for
distribution to shareholders.

     Shareholders  of the Fund are  entitled  to a full vote for each full share
held and to a  fractional  vote for  fractional  shares.  The  voting  rights of
shareholders are not cumulative. Shares have no preemptive or conversion rights.
The rights of redemption are described elsewhere herein.  Shares when issued are
fully paid and nonassessable,  except as set forth below. It is the intention of
the Trust not to hold meetings of shareholders  annually.  The Trustees may call
meetings of  shareholders  for action by shareholder  vote as may be required by
the 1940 Act or as may be  permitted  by the  Declaration  of Trust or  By-Laws.
Shareholders  have under  certain  circumstances  (e.g.,  upon  application  and
submission of certain specified  documents to the Trustees by a specified number
of shareholders) the right to communicate with other  shareholders in connection
with  requesting  a meeting of  shareholders  for the purpose of removing one or
more Trustees.  Shareholders  also have the right to remove one or more Trustees
without  a  meeting  by a  declaration  in  writing  by a  specified  number  of
shareholders.

     The By-Laws of the Trust provide that the presence in person or by proxy of
the  holders  of record of one half of the  shares of the Fund  outstanding  and
entitled  to vote  thereat  shall  constitute  a quorum at all  meetings of Fund
shareholders,  except as  otherwise  required  by  applicable  law.  The By-Laws
further  provide that all questions  shall be decided by a majority of the votes
cast at any such  meeting  at which a quorum is  present,  except  as  otherwise
required by applicable law.

     The  Declaration of Trust provides that, at any meeting of  shareholders of
the  Fund,  each  Eligible  Institution  may vote any  shares  as to which  that
Eligible  Institution  is the  agent of  record  and  which  are  otherwise  not
represented in person or by proxy at the meeting,  proportionately in accordance
with the votes  cast by  holders  of all  shares  otherwise  represented  at the
meeting in person or by proxy as to which that Eligible Institution is the agent
of record. Any shares so voted by an Eligible Institution are deemed represented
at the meeting for purposes of quorum requirements.

     The  Trust is an  entity  of the type  commonly  known as a  "Massachusetts
business trust". Under Massachusetts law,  shareholders of such a business trust
may, under certain circumstances,  be held personally liable as partners for its


                                       14
<PAGE>

obligations. However, the risk of a shareholder incurring financial loss because
of shareholder  liability is limited to  circumstances  in which both inadequate
insurance existed and the Trust itself was unable to meet its obligations.

ADDITIONAL INFORMATION
================================================================================

     As used in this  Prospectus,  the term "majority of the Fund's  outstanding
voting  securities" (as defined in the 1940 Act) currently means the vote of (i)
67% or more of the Fund's  shares  present at a meeting,  if the holders of more
than 50% of the outstanding  voting securities of the Fund are present in person
or represented by proxy; or (ii) more than 50% of the Fund's  outstanding voting
securities, whichever is less.

     Fund  shareholders   receive  semi-annual   reports  containing   unaudited
financial  statements and annual reports containing financial statements audited
by independent auditors.

     The Fund's "yield",  "effective  yield" and "tax  equivalent  yield" may be
used  from  time to time in  shareholder  reports  or  other  communications  to
shareholders  or  prospective  investors.   Such  yield  figures  are  based  on
historical  earnings  and are  not  intended  to  indicate  future  performance.
Performance  information  may  include  the  Fund's  investment  results  and/or
comparisons of its investment  results to various unmanaged indexes (such as the
1-month  LIBOR)  and to  investments  for  which  reliable  performance  data is
available.  Performance  information  may also include  comparisons to averages,
performance  rankings or other  information  prepared by recognized  mutual fund
statistical services. To the extent that unmanaged indexes are so included,  the
same indexes will be used on a consistent basis. The Fund's  investment  results
as used in such communications are calculated in the manner set forth below.

     The "yield" of the Fund refers to the income  generated by an investment in
the Fund over a seven-day  period (which period will be stated).  This income is
then  "annualized".  That is, the amount of income  generated by the  investment
during that week is assumed to be generated  each week over a 52-week period and
is shown as a percentage of the investment.  The "effective yield" is calculated
similarly but, when  annualized,  the income earned by an investment in the Fund
is assumed to be reinvested.  The "effective  yield" is slightly higher than the
"yield" because of the compounding effect of this assumed reinvestment. The "tax
equivalent  yield" is the yield a fully taxable  investment would have to return
to an  investor  subject to the highest  marginal  federal tax rate to provide a
comparable return.

     This Prospectus omits certain of the information contained in the Statement
of  Additional  Information  and  the  Registration  Statement  filed  with  the
Securities and Exchange Commission.  The Statement of Additional Information may
be obtained from 59 Wall Street Distributors without charge and the Registration
Statement  may be obtained  from the  Securities  and Exchange  Commission  upon
payment of the fee prescribed by the Rules and Regulations of the Commission.


                                       15
<PAGE>

APPENDIX A

================================================================================
     This Appendix is intended to provide  descriptions  of the  securities  the
Fund may purchase, the interest on which is exempt from federal income tax other
than the alternative  minimum tax. However,  other such securities not mentioned
below  may be  purchased  for the Fund if they  meet the  quality  and  maturity
guidelines set forth in the Fund's investment policies.
================================================================================

     Municipal  Notes--debt  obligations issued by states, local governments and
regional  authorities  which provide interest income that is exempt from regular
federal  income taxes,  other than the  alternative  minimum tax. They generally
meet the shorter-term  capital needs of their issuers and have maturities of 397
days or less. These securities include:

          o    Tax and Revenue  Anticipation  Notes--notes issued in expectation
               of future taxes or revenues.

          o    Bond Anticipation Notes--notes issued in anticipation of the sale
               of long-term bonds.

     Municipal Commercial  Paper--obligations  issued to meet short-term working
capital or operating needs.

     Variable and Floating Rate Instruments--securities whose interest rates are
reset daily,  weekly or at another  periodic  date so that the security  remains
close to par,  minimizing  changes in its market value.  These  securities often
have a demand feature which entitles the investor to repayment of principal plus
accrued interest on short notice. In calculating the maturity of a variable rate
or floating  rate  instrument  for the Fund,  the date of the next interest rate
reset is used.

     Municipal  Bonds--debt  obligations issued by states, local governments and
regional  authorities  which provide interest income that is exempt from regular
federal income tax, other than the alternative  minimum tax. They generally meet
the  longer-term  capital needs of their issuers and have maturities of one year
or more. The Fund may purchase  Municipal Bonds with a remaining maturity of 397
days or less. These securities include:

     o    General Obligation Bonds--bonds backed by the municipality's pledge of
          full faith, credit and taxing power.

     o    Revenue  Bonds--bonds  backed by the  revenue of a  specific  project,
          facility  or tax.  These  include  municipal  water,  sewer  and power
          utilities;  transportation projects;  education or housing facilities;
          industrial development and resource recovery bonds.

     o    Refunded  Bonds--general  obligation  or revenue  bonds that have been
          fully secured or collateralized by an "escrow fund" consisting of U.S.
          Government obligations that can adequately meet interest and principal
          payments.

     o    Participation  Certificates--the variable rate demand instruments that
          the Fund may invest in include Participation Certificates purchased by
          the  Fund  from  banks,   insurance   companies  or  other   financial
          institutions   in  fixed  or  variable  rate,   tax-exempt   municipal
          obligations  (expected to be  concentrated  in Revenue Bonds) owned by
          such  institutions  or  affiliated   organizations.   A  Participation
          Certificate  gives the Fund an  undivided  interest  in the  municipal
          obligation in the proportion  that the Fund's  participation  interest
          bears to the total  principal  amount of the municipal  obligation and
          provides the demand  repurchase  feature  described  below.  Where the
          institution  issuing  the  participation  does  not  meet  the  Fund's
          eligibility  criteria,  the  participation is backed by an


                                       16
<PAGE>

          irrevocable  letter of credit or  guaranty of a bank (which may be the
          bank that issued the  Participation  Certification,  a bank  issuing a
          confirming  letter of credit to that of the  issuing  bank,  or a bank
          serving as agent of the  issuing  bank with  respect  to the  possible
          repurchase of the  certification of participation or a bank serving as
          agent of the issuer with  respect to the  possible  repurchase  of the
          issue) or insurance  policy of an insurance  company that the Board of
          Trustees  of the Fund has  determined  meets  the  prescribed  quality
          standards  for  the  Fund.   The  Fund  has  the  right  to  sell  the
          Participation   Certificate   back  to  the  institution   and,  where
          applicable, draw on the letter of credit, Guarantee or insurance after
          no more  than 30  days'  notice  either  at any  time or at  specified
          intervals  no  exceeding  397  days  (depending  on the  terms  of the
          participation),  for all or any part of the full  principal  amount of
          the  Fund's  participation  interest  in the  security,  plus  accrued
          interest.  The Fund  intends to  exercise  the demand  only (1) upon a
          default  under  the  terms of the bond  documents,  (2) as  needed  to
          provide  liquidity  to the Fund in order to make  redemptions  of Fund
          shares, or (3) to maintain a high quality  investment  portfolio.  The
          institutions  issuing  the  Participation  Certificates  will retain a
          service  and  letter of credit fee  (where  applicable)  and a fee for
          providing  the demand  repurchase  feature,  in an amount equal to the
          excess of the interest  paid on the  instruments  over the  negotiated
          yield at which the  participations  were  purchased  by the Fund.  The
          total fees generally range from 5% to 15% of the applicable prime.

     o    Lease Obligation  Bonds--bonds  backed by lease obligations of a state
          or local  authority  for the use of land,  equipment  and  facilities.
          These  securities  are not  backed by the full faith and credit of the
          municipality  and may be  riskier  than  general  obligation  bonds or
          revenue bonds.  Leases and  installment  purchase or conditional  sale
          contracts  have been  developed  to allow for  government  issuers  to
          acquire  property  without  meeting the statutory  and  constitutional
          requirements generally required for the issuance of debt.

     o    Asset-Backed  Bonds--bonds  secured by interests in pools of municipal
          purchase  contracts,  financing  leases  and sales  agreements.  These
          obligations are  collateralized  by the assets  purchased or leased by
          the municipality.

     o    Zero  Coupon  Bonds--securities  issued at a discount  from their face
          value  that  pay  all  interest  and  principal  upon  maturity.   The
          difference between the purchase price and par is a specific compounded
          interest rate for the investor. In calculating the daily income of the
          Fund,  a  portion  of the  difference  between  a zero  coupon  bond's
          purchase price and its face value is taken into account as income.

     When-Issued and Delayed  Delivery  Securities--municipal  securities may be
purchased for the Fund on a when-issued or delayed  delivery basis. For example,
delivery  and  payment  may  take  place a month or more  after  the date of the
transaction.  The purchase price and the interest rate payable on the securities
are fixed on the  transaction  date.  The securities so purchased are subject to
market  fluctuation  and no  interest  accrues  to the Fund until  delivery  and
payment take place.  At the time the  commitment to purchase  securities for the
Fund on a when-issued  or delayed  delivery  basis is made,  the  transaction is
recorded and  thereafter  the value of such  securities is reflected each day in
determining  the  Fund's  net asset  value.  At the time of its  acquisition,  a
when-issued security may be valued at less than the purchase price.  Commitments
for such  when-issued  securities  are made only when there is an  intention  of
actually acquiring the securities. To facilitate such acquisitions, a segregated
account with the Custodian is  maintained  for the Fund with liquid assets in an
amount at least equal to such commitments.  Such segregated  account consists of
liquid assets marked to the market daily,  with  additional  liquid assets added
when necessary to insure that at all times the value of such account is equal to
the commitments.  On 


                                       17
<PAGE>

delivery dates for such  transactions,  such obligations are met from maturities
or sales of the securities held in the segregated account and/or from cash flow.
If the right to  acquire a  when-issued  security  is  disposed  of prior to its
acquisition,  the Fund could,  as with the  disposition  of any other  portfolio
obligation,  incur  a gain  or  loss  due  to  market  fluctuation.  When-issued
commitments for the Fund may not be entered into if such  commitments  exceed in
the  aggregate  15%  of the  market  value  of the  Fund's  total  assets,  less
liabilities other than the obligations created by when-issued commitments.

     Other  Federal   Tax-Exempt   Obligations--Any   other  Federal  tax-exempt
obligations issued by or on behalf of states and municipal governments and their
authorities,  agencies,  instrumentalities  and  political  subdivisions,  whose
inclusion  in  the  Fund  would  be  consistent  with  the  Fund's   "Investment
Objectives,  Policies  and  Risks"  and  permissable  under  Rule 2a-7 under the
Investment Company Act of 1940, as amended (the "1940 Act").

     Stand-by  Commitments--When the Fund purchases Municipal Obligations it may
also acquire stand-by  commitments  from banks and other financial  institutions
which respect to such Municipal Obligations. Under a stand-by commitment, a bank
or broker-dealer  agrees to purchase at the Fund's option a specified  Municipal
Obligation at a specified price with same day settlement.  A stand-by commitment
is the  equivalent  of a "put"  option  acquired  by the Fund with  respect to a
particular Municipal Obligation held in its portfolio.


                                       18
<PAGE>

The 59 Wall Street Trust

Investment Adviser and
  Administrator
Brown Brothers Harriman & Co.
59 Wall Street
New York, New York  10005

Distributor
59 Wall Street Distributors, Inc.
21 Milk Street
Boston, Massachusetts  02109

Shareholder Servicing Agent
Brown Brothers Harriman & Co.
59 Wall Street
New York, New York  10005
(800) 625-5759

No  dealer,  salesman  or any  other  person  has  been  authorized  to give any
information or to make any  representations,  other than those contained in this
Prospectus and the Statement of Additional  Information,  in connection with the
offer contained in this Prospectus, and if given or made, such other information
or  representations  must not be relied  upon as having been  authorized  by the
Trust or the  Distributor.  This  Prospectus does not constitute an offer by the
Trust or by the Distributor to sell or the  solicitation of any offer to buy any
of the securities offered hereby in any jurisdiction to any person to whom it is
unlawful  for  the  Trust  or  the  Distributor  to  make  such  offer  in  such
jurisdiction.

                                  59 WALL ST.
                              Tax Exempt Money Fund

                                   PROSPECTUS
                                February 16, 1999



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