CALVERT SOCIAL INVESTMENT FUND
485APOS, 2000-10-26
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SEC  REGISTRATION  NOS.
2-75106  AND  811-3334

SECURITIES  AND  EXCHANGE  COMMISSION
WASHINGTON,  D.C.  20549

                                   FORM  N-1A

REGISTRATION  STATEMENT  UNDER  THE
SECURITIES  ACT  OF  1933

POST-EFFECTIVE  AMENDMENT  NO.  31             XX

AND/OR

REGISTRATION  STATEMENT  UNDER  THE
INVESTMENT  COMPANY  ACT  OF  1940

AMENDMENT  NO.  31                            XX

                         CALVERT  SOCIAL  INVESTMENT  FUND
                     THIS FILING IS FOR THE TECHNOLOGY PORTFOLIO ONLY
                (EXACT  NAME  OF  REGISTRANT  AS  SPECIFIED  IN  CHARTER)

                             4550  MONTGOMERY  AVENUE
                                  SUITE  1000N
                            BETHESDA,  MARYLAND  20814
                    (ADDRESS  OF  PRINCIPAL  EXECUTIVE  OFFICES)

                 REGISTRANT'S  TELEPHONE  NUMBER:  (301)  951-4800

                           WILLIAM  M.  TARTIKOFF,  ESQ.
                             4550  MONTGOMERY  AVENUE
                                  SUITE  1000N
                            BETHESDA,  MARYLAND  20814
                    (NAME  AND  ADDRESS  OF  AGENT  FOR  SERVICE)

IT  IS  PROPOSED  THAT  THIS  FILING  WILL  BECOME  EFFECTIVE


___IMMEDIATELY  UPON  FILING                 ___  ON  (DATE)
PURSUANT  TO  PARAGRAPH  (B)                   PURSUANT  TO  PARAGRAPH  (B)

XX  75  DAYS  AFTER  FILING                    ___  ON  (DATE)
PURSUANT  TO  PARAGRAPH  (A)                   PURSUANT  TO  PARAGRAPH  (A)

<PAGE>


PROSPECTUS
October  31,  2000
CALVERT  SOCIAL  INVESTMENT  FUND  -  TECHNOLOGY  PORTFOLIO





About  the  Fund
2     Investment  Objective  and  Strategy
3     Fees  and  Expenses
5     Investment  Practices  and  Risks
9     Investment  Selection Process and Socially Responsible Investment Criteria
11     Shareholder  Advocacy  and  Social  Responsibility

About  Your  Investment
12     About  Calvert
12     Advisory  Fees
13     How  to  Buy  Shares
13     Getting  Started
13     Choosing  a  Share  Class
16     Calculation  of  CDSC/Waiver
17     Distribution  and  Service  Fees
17     Account  Application
18     Important  -  How  Shares  are  Priced
18     When  Your  Account  Will  be  Credited
19     Other  Calvert  Group  Features
      (Exchanges,  Minimum  Account  Balance,  etc.)
21     Dividends,  Capital  Gains  and  Taxes
23     How  to  Sell  Shares
25     Exhibit  A-  Reduced  Sales  Charges  (Class  A)
27     Exhibit  B-  Service  Fees  and
     Other  Arrangements  with  Dealers

These  securities  have  not  been approved or disapproved by the Securities and
Exchange Commission (SEC) or any State Securities Commission, nor has the SEC or
any  State  Securities  Commission  passed  on  the accuracy or adequacy of this
prospectus.  Any  representation  to  the  contrary  is  a  criminal  offense.


<PAGE>
Objective
Calvert  Social  Investment  Fund  Technology  Portfolio seeks growth of capital
through  investment  in  stocks  in  companies  involved  in  the  development,
advancement,  and  use  of  technology.

Principal  investment  strategies
The  Fund invests primarily in stocks of companies that develop new technologies
and  that  may  experience  exceptional  growth  in sales and earnings driven by
technology-related  products and services. These companies may include companies
that  develop,  produce  or  distribute  products  or  services in the computer,
semiconductors,  electronics,  communications,  healthcare  and  biotechnology
sectors.


The  Fund  will  invest  at  least  65%  of its assets in the stocks of U.S. and
non-U.S. companies principally engaged in research, development, and manufacture
of  technology  and  in  the  stocks  of  companies that should benefit from the
commercialization of technological advances.  The Fund may also invest up to 10%
in  private equity (the investments are generally venture capital investments in
small untried enterprises that are not traded on a public exchange) and short at
least  10%  of  the  net  asset  value.


The  goal  of  the  investment  selection  process is to identify candidates for
investment  that  are  growth  companies  with  superior  earnings  prospects,
reasonable  valuations,  and  favorable  trading  volume and price patterns. The
process  is  based  on one philosophy: earnings expectations drive stock prices.
The  Fund  invests  in companies with strong earnings prospects that the advisor
expects  to  produce  gains  over time. Investments are selected on the basis of
their  ability  to  contribute to the dual objectives of financial soundness and
social  criteria.  The  Fund  buys  companies with strong earnings dynamics, and
sells  those  with  deteriorating  earnings prospects. Security selection is the
primary  means  of  adding  investment  value.  The  Fund uses an active trading
strategy which may cause the Fund to have a relatively high amount of short-term
capital gains, which are taxable to you, the shareholder, at the ordinary income
tax  rate.


The  Fund  invests  with the philosophy that long-term rewards to investors will
come  from those organizations whose products, services, and methods enhance the
human  condition  and  the traditional American values of individual initiative,
equality  of  opportunity  and  cooperative  effort.

<PAGE>
Principal  Risks
The  Fund  is  designed  for  long-term  investors  who  are  willing  to accept
above-average  risk and volatility in order to seek a higher rate of return over
time.  You  could  lose  money on your investment in the Fund, or the Fund could
underperform  for  any  of  the  following  reasons:

-     The  technology  sector involves special risks, such as the faster rate of
change  and  obsolescence of technological advances, and has been among the most
volatile  sectors  of  the  stock market. The Fund's share price is likely to be
more  volatile  than  other  funds that do not concentrate in one market sector.
-     The  individual  stocks  in  the  Fund do not perform as well as expected.
-     The  Fund  is  subject  to  the  risk  that  its principal market segment,
technology  stocks, may underperform compared to other market segments or to the
equity  markets  as  a  whole.
-     The  Fund is non-diversified. Compared to other funds, the Fund may invest
more of its assets in a smaller number of companies. Gains or losses on a single
stock  may  have  a  positive  or  negative  impact  on  the  Fund.


An investment in the Fund is not a bank deposit and is not insured or guaranteed
by  the  Federal  Deposit  Insurance Corporation or any other government agency.

   (No performance results are shown for the Fund since it has been in existence
for  less  than  one  calendar  year.)

FEES  AND  EXPENSES
This  table describes the fees and expenses that you may pay if you buy and hold
shares  of  the  Fund.
                                     Class  A       Class  B     Class  C
Shareholder  fees
(paid  directly  from  your  account)

Maximum  sales  charge  (load)
imposed  on  purchases                  4.75%          None         None
(as  a  percentage  of  offering  price)


Maximum  deferred  sales  charge  (load)
(as  a percentage of purchase or        None2         45.00% 3    1.00%4
redemption  proceeds,  whichever  is  lower)

Annual  fund  operating  expenses1
(deducted  from  Fund  assets)

Management  fees                         1.50%         1.50%       1.50%

Distribution and service (12b-1) fees     .25%         1.00%       1.00%

Other  expenses                           .67%          .96%        .96%

Total annual fund operating expenses     2.42%         3.46%       3.46%

Fee waiver and/or expense reimbursement5  .32%          .36%        .36%

Net  expenses                            2.10%         3.10%       3.10%


<PAGE>
Notes  to  Fees  and  Expenses  Table
1     Expenses  are  based  on  estimates  for  the  Fund's current fiscal year.
Management  fees  include  the  Subadvisory  fees  paid  by the Advisor, Calvert
Asset  Management Company ("CAMCO" or "Calvert") to the Subadvisor,          and
the  administrative  fee  paid  by  the  Fund  to  Calvert  Administrative
Services  Company,  an  affiliate  of  CAMCO.
2     Purchases  of  Class A shares for accounts with $1 million or more are not
subject  to  front-end  sales  charges,  but  may  be subject to a 1% contingent
deferred  sales  charge  on  shares  redeemed  within  1  year  of  purchase.
     (See  "How  to  Buy  Shares"  -  Class  A.)
3     A  contingent  deferred sales charge is imposed on the proceeds of Class B
shares  redeemed  within 6 years, subject to certain exceptions. The charge is a
percentage  of  net  asset  value  at  the  time  of  purchase  or  redemption,
whichever  is less, and declines from 5% in the first year that shares are held,
to  4%  in  the  second  and  third year, 3% in the fourth year, 2% in the fifth
year,  and  1%  in  the sixth year. There is no charge on redemptions of Class B
shares  held  for  more  than six years. See "Calculation of Contingent Deferred
Sales  Charge."
4     A  contingent  deferred  sales  charge of 1% is imposed on the proceeds of
     Class  C shares redeemed within one year. The charge is a percentage of net
asset  value  at  the  time  of  purchase  or redemption, whichever is less. See
"Calculation  of  Contingent  Deferred  Sales  Charge."

5     CAMCO  has  agreed  to  limit  annual  fund operating expenses (net of any
expense  offset  arrangements) through January 31, 2002. The contractual expense
cap is shown as "Net expenses," this is the maximum amount of operating expenses
that  may  be  charged to the Fund through January 31, 2002. For the purposes of
this  expense  limit,  operating  expenses  do  not  include  interest  expense,
brokerage commissions, extraordinary expenses, taxes and capital items. The Fund
has  an  offset  arrangement  with  the custodian bank whereby the custodian and
transfer  agent  fees may be paid indirectly by credits on the Fund's uninvested
cash  balances.  These  credits  are  used  to  reduce  the  Fund's  expenses.


<PAGE>
Example
This  example  is intended to help you compare the cost of investing in the Fund
with  the  cost  of  investing  in other mutual funds. The example assumes that:

-     You  invest  $10,000  in  the  Fund  for  the  time  periods  indicated;
-     Your  investment  has  a  5%  return  each  year;  and
-     The  Fund's  operating  expenses  remain  the  same.

Although  your actual costs may be higher or lower, under these assumptions your
costs  would  be:

Class          Number  of  Years  Investment  is  Held
                       1  Year      3  Years
A  (no  redemption)       $678        $1,165
B  (with  redemption)      813         1,429
B  (no  redemption)        313         1,029
C  (with  redemption)      413         1,029
C  (no  redemption)        313         1,029


Investment  Practices  and  Related  Risks
On  the  following pages are brief descriptions of the principal investments and
techniques,  summarized  earlier,  along  with  certain  additional  investment
techniques and their risks. For each of the investment practices listed, we show
the principal types of risk involved. (See the following pages for a description
of  the  types  of  risks).

Investment  Practices

Stocks  in  General.  The  Fund  is  subject to stock market risk.  Stock prices
overall  may  decline over short or even long periods.  The Fund is also subject
to investment style risk, which  is  the chance that returns from the technology
sector  stocks  will trail returns from other asset classes or the overall stock
market.  Each  type of stock tends to go through cycles of doing better or worse
than  the stock market in general. Finally, individual stocks may lose value for
a  variety  of reasons, even when the overall stock market has increased. Risks:
Market.


Active  Trading  Strategy/Turnover  involves  selling  a  security  soon  after
purchase.  An  active  trading  strategy  causes a fund to have higher portfolio
turnover  compared  to  other  funds  and  higher  transaction  costs,  such  as
commissions  and  custodian  and  settlement  fees,  and  may  increase your tax
liability.  Risks:  Opportunity,  Market,  Transaction  and  Tax.

Temporary  Defensive  Positions.
During  adverse  market,  economic  or political conditions, the Fund may depart
from  its  principal  investment  strategies  by  increasing  its  investment in
short-term  interest-bearing securities. During times of any temporary defensive
positions,  the  Fund may not be able to achieve its investment objective Risks:
Opportunity.

<PAGE>
Conventional  Securities

Foreign  Securities.  Securities  issued  by  companies located outside the U.S.
and/or  traded  primarily  on  a  foreign  exchange.  Risks:  Market,  Currency,
Transaction,  Liquidity,  Information  and  Political.

Small  Cap  Stocks. Investing in small companies involves greater risk than with
more  established  companies.  Small  cap stock prices are more volatile and the
companies  often  have  limited product lines, markets, financial resources, and
management  experience.  Risks:  Market,  Liquidity  and  Information.

Investment  grade  bonds.  Bonds  rated  BBB/Baa or higher or comparable unrated
bonds.  Risks:  Interest  Rate,  Market  and  Credit.

Below-investment  grade  bonds.  Bonds rated below BBB/Baa or comparable unrated
bonds  are  considered  junk bonds. They are subject to greater credit risk than
investment  grade bonds. Such investments are permitted, but not typically used.
Risks:  Credit,  Market,  Interest  Rate,  Liquidity  and  Information.


Unrated  debt  securities. Bonds that have not been rated by a recognized rating
agency; the Advisor has determined the credit quality based on its own research.
Risks:  Credit,  Market,  Interest  Rate,  Liquidity  and  Information.

Illiquid securities. Securities which cannot be readily sold because there is no
active  market.  Risks:  Liquidity,  Market  and  Transaction.


Initial  Public  Offerings  ("IPOs").  IPOs are newly issued securities that may
have  volatile  prices  due  to speculation and the lack of any established long
term  price  history.  Accordingly,  IPOs  and  other  volatile  investments may
magnify  the  performance impact when the Fund assets are small or when the Fund
contains  a significant amount of such investments. Currently, there is no limit
on  the amount of IPOs that may be purchased by the Fund provided such purchases
are  within  the  Portfolio's  stated  objectives  and  guidelines.  Portfolio
performance  driven  by  IPO  purchases  may  not continue if assets grow or IPO
Portfolio  trading  changes.  Risks:  Market.


Leveraged  derivative  instruments

Currency contracts. Contracts involving the right or obligation to buy or sell a
given  amount  of  foreign currency at a specified price and future date. Risks:
Currency,  Leverage,  Correlation,  Liquidity  and  Opportunity.

Options on securities and indices. Contracts giving the holder the right but not
the obligation to purchase or sell a security (or the cash value, in the case of
an option on an index) at a specified price within a specified time. In the case
of  selling  (writing)  options,  the Funds will write call options only if they
already  own  the security (if it is "covered"). Risks: Interest Rate, Currency,
Market,  Leverage,  Correlation,  Liquidity,  Credit  and  Opportunity.

<PAGE>
Futures  contract.  Agreement to buy or sell a specific amount of a commodity or
financial  instrument  at  a  particular price on a specific future date. Risks:
Interest  Rate,  Currency,  Market,  Leverage,  Correlation,  Liquidity  and
Opportunity.


High  Social  Impact  Investments
High  Social  Impact  Investments  is a program that targets a percentage of the
Fund's  assets  (up  to  1%)  to  directly support the growth of community-based
organizations  for  the  purposes  of  promoting  business  creation,  housing
development, and economic and social development of urban and rural communities.
The  Fund may engage in this program upon reaching $50 million in assets.  These
types  of  investments  offer  a rate of return below the then-prevailing market
rate,  and  are  considered illiquid, unrated and may be deemed below-investment
grade.  They  also  involve  a  greater  risk  of  default or price decline than
investment  grade  securities.  However,  they have significant social return by
making  a  difference  in our local communities.  High Social Impact Investments
are  valued  under  the  direction  and  control  of  the  Fund's  Board.


The  Fund  has  received  an exemptive order to permit it to invest those assets
allocated  for investment in High Social Impact Investments through the purchase
of Community Investment Notes from the Calvert Social Investment Foundation. The
Calvert  Social  Investment  Foundation  is  a  non-profit organization, legally
distinct  from  Calvert  Group,  organized  as  a  charitable  and  educational
foundation  for  the purpose of increasing public awareness and knowledge of the
concept  of  socially  responsible  investing.  The  Calvert  Social  Investment
Foundation  has  instituted  the  Calvert Community Investments program to raise
assets  from individual and institutional investors and then invest these assets
directly in non-profit or not-for-profit community development organizations and
community  development  banks  that  focus  on  low  income  housing,  economic
development  and  business  development  in  urban  and  rural  communities.

Special  Equities
The  Fund  has  a  Special  Equities  investment program that allows the Fund to
promote especially promising approaches to social goals through privately placed
investments. The investments are generally venture capital investments in small,
untried  enterprises.  The  Special  Equities  Committee  of  the  Fund's  Board
identifies,  evaluates,  and  selects the Special Equities investments.  Special
Equities  involve  a  high  degree  of  risk  -  they  are subject to liquidity,
information, and, if a debt investment, credit risk. Special Equities are valued
under  the  direction  and  control  of  the  Fund's  Board.

The  Fund  has  additional  investment  policies  and restrictions (for example,
repurchase  agreements,  borrowing, pledging, and reverse repurchase agreements,
and  securities  lending.)  These policies and restrictions are discussed in the
Statement  of  Additional  Information  ("SAI  ").



<PAGE>
Types  of  Investment  Risk

Correlation  risk
This  occurs  when  a  Fund  "hedges"-  uses one investment to offset the Fund's
position  in  another.  If  the two investments do not behave in relation to one
another  the  way  Fund  managers  expect  them to, then unexpected or undesired
results may occur. For example, a hedge may eliminate or reduce gains as well as
offset  losses.

Credit  risk
The  risk  that  the  issuer  of a security or the counterparty to an investment
contract  may  default  or  become  unable  to  pay  its  obligations  when due.


Currency  risk
Currency  risk occurs when a Fund buys, sells or holds a security denominated in
foreign  currency.  Foreign currencies "float" in value against the U.S. dollar.
Adverse  changes  in  foreign  currency  values and currency controls imposed by
foreign  markets  can  cause  investment  losses  when  a Fund's investments are
converted  to  U.S.  dollars.

Information  risk
The  risk that information about a security or issuer or the market might not be
available,  complete,  accurate  or  comparable.

Interest  rate  risk
The  risk  that  changes in interest rates will adversely affect the value of an
investor's  securities.  When  interest  rates  rise,  the value of fixed-income
securities  will  generally  fall.  Conversely,  a  drop  in interest rates will
generally cause an increase in the value of fixed-income securities. Longer-term
securities  and  zero coupon/"stripped" coupon securities ("strips") are subject
to  greater  interest  rate  risk.

Leverage  risk
The  risk that occurs in some securities or techniques which tend to magnify the
effect  of small changes in an index or a market. This can result in a loss that
exceeds  the  amount  actually  invested.

Liquidity  risk
The risk that occurs when investments cannot be readily sold. A Fund may have to
accept  a less-than-desirable price to complete the sale of an illiquid security
or  may  not  be  able  to  sell  it  at  all.

Management  risk
The  risk that a Fund's portfolio management practices might not work to achieve
their  desired  result.

Market  risk
The  risk  that  securities  prices  in  a  market, a sector or an industry will
fluctuate,  and  that  such  movements  might  reduce  an  investment's  value.


<PAGE>
Opportunity  risk
The  risk  of missing out on an investment opportunity because the assets needed
to  take  advantage  of  it  are  committed  to less advantageous investments or
strategies.

Political  risk
The risk that may occur with foreign investments, and means that the value of an
investment  may  be  adversely  affected  by  nationalization,  taxation,  war,
government  instability  or  other  economic  or  political  actions or factors.

Transaction  risk
The  risk  that  a Fund may be delayed or unable to settle a transaction or that
commissions  and  settlement  expenses  may  be  higher  than  usual.

Volatility  risk
The risk that the value of a security will increase or decrease greatly within a
short  period  of  time.


Investment  Selection  Process
Investments are selected on the basis of their ability to contribute to the dual
objectives  of financial soundness (a potential company's ability to realize and
grow  earnings)  and  social  criteria.


Potential  investments  for  the Fund are first selected for financial soundness
and  then  evaluated  according  to the Fund's social criteria.  To the greatest
extent  possible,  the  Fund  seeks to invest in companies that exhibit positive
accomplishments  with respect to one or more of the social criteria. Investments
for  the  Fund  must meet the minimum standards for all its financial and social
criteria.

Although the Fund's social criteria tend to limit the availability of investment
opportunities  more than is customary with other investment companies, CAMCO and
the Subadvisor of the Fund believe there are sufficient investment opportunities
to  permit full investment among issuers which satisfy the Fund's investment and
social  objectives.

The  selection  of  an investment by the Fund does not constitute endorsement or
validation  by  the  Fund,  nor  does the exclusion of an investment necessarily
reflect  failure to satisfy the Fund's social criteria. Investors are invited to
send  a  brief  description  of  companies  they  believe  might be suitable for
investment.


<PAGE>
Socially  Responsible  Investment  Criteria
The  Fund  invests  in  accordance with the philosophy that long-term rewards to
investors  will  come  from  those  organizations  whose products, services, and
methods  enhance  the  human  condition  and  the traditional American values of
individual  initiative,  equality  of  opportunity  and  cooperative effort.  In
addition,  we  believe  that  there  are  long-term  benefits  in  an investment
philosophy that demonstrates concern for the environment, labor relations, human
rights  and  community  relations.  Those  enterprises  that  exhibit  a  social
awareness  in  these  issues  should  be better prepared to meet future societal
needs.  By  responding  to  social  concerns,  these enterprises should not only
avoid the liability that may be incurred when a product or service is determined
to  have  a  negative  social impact or has outlived its usefulness, but also be
better  positioned to develop opportunities to make a profitable contribution to
society.  These  enterprises  should be ready to respond to external demands and
ensure  that  over  the  longer  term  they  will be viable to seek to provide a
positive  return  to  both  investors  and  society  as  a  whole.

The  Fund  has  developed  social  investment  criteria,  detailed below.  These
criteria  represent  standards  of  behavior  which  few,  if any, organizations
totally  satisfy.  As  a  matter  of  practice,  evaluation  of  a  particular
organization  in  the context of these criteria will involve subjective judgment
by  CAMCO and the Subadvisor. All social criteria may be changed by the Board of
Trustees  without  shareholder  approval.

The  Fund  seeks  to  invest  in  companies  that:

-     Deliver  safe  products  and  services  in  ways  that sustain our natural
environment.  For example, the Fund looks for companies that produce energy from
renewable  resources,  while  avoiding  consistent  polluters.

-     Manage  with  participation  throughout  the  organization in defining and
achieving  objectives.  For  example,  the  Fund  looks for companies that offer
employee  stock  ownership  or  profit-sharing  plans.

-     Negotiate  fairly with their workers, provide an environment supportive of
their wellness, do not discriminate on the basis of race, gender, religion, age,
disability,  ethnic  origin,  or sexual orientation, do not consistently violate
regulations  of  the  EEOC,  and  provide opportunities for women, disadvantaged
minorities, and others for whom equal opportunities have often been denied.  For
example,  the  Fund considers both unionized and non-union firms with good labor
relations.


<PAGE>

-     Foster  awareness  of  a  commitment  to  human goals, such as creativity,
productivity,  self-respect  and responsibility, within the organization and the
world,  and  continually  recreates  a  context  within which these goals can be
realized.  For  example,  the  Fund  looks  for  companies with an above average
commitment  to  community  affairs  and  charitable  giving.


The  Fund  will  not  invest  in  companies  that  the  Advisor determines to be
significantly  engaged  in:

-     Business  activities  in  support  of  repressive  regimes
-     Production,  or  the  manufacture  of equipment, to produce nuclear energy
-     Manufacture  of  weapon  systems
-     Manufacture  of  alcoholic  beverages  or  tobacco  products
-     Operation  of  gambling  casinos
-     A  pattern  and  practice of violating the rights of indigenous people. We
urge  companies  to  end  negative  stereotypes  of  Native  Americans and other
indigenous  peoples.  For  example,  the Fund objects to the unauthorized use of
names and images that portray Native Americans in a negative light, and supports
the  promotion  of  positive  portrayals  of  all individuals and ethnic groups.

With  respect  to U.S. government securities, the Fund invests primarily in debt
obligations  issued  or  guaranteed by agencies or instrumentalities of the U.S.
Government  whose  purposes  further  or  are  compatible with the Fund's social
criteria,  such as obligations of the Student Loan Marketing Association, rather
than  general  obligations  of the U.S. Government, such as Treasury securities.

Shareholder  Advocacy  and  Social  Responsibility
Calvert  takes  a proactive role to make a tangible positive contribution to our
society  and  that  of  future  generations.  We  seek  to  positively influence
corporate  behavior  through the Fund's role as shareholder by pushing companies
toward  higher  standards  of  social  and  environmental  responsibility.  Our
activities  may  include  but  are  not  limited  to:

Dialogue  with  companies
We  regularly  initiate  dialogue with management as part of our social research
process.  After  we've become a shareholder, we often continue our dialogue with
management  through  phone  calls,  letters  and in-person meetings. Through our
interaction,  we learn about management's successes and challenges and press for
improvement  on  issues  of  concern.



<PAGE>
Proxy  voting
As  a  shareholder in our various portfolio companies, the Fund is guaranteed an
opportunity each year to express its views on issues of corporate governance and
social  responsibility  at  annual  stockholder  meetings.  We  take  our voting
responsibility  seriously and vote all proxies consistent with the financial and
social  objectives  of  the  Fund.

Shareholder  resolutions
Calvert  proposes resolutions on a variety of social issues. We file shareholder
resolutions  when  our dialogue with corporate management proves unsuccessful to
encourage  a  company  to  take  action.  In most cases, our efforts have led to
negotiated  settlements  with  positive  results  for shareholders and companies
alike. For example, one of our shareholder resolutions resulted in the company's
first-ever  disclosure  of its equal employment policies, programs and workforce
demographics.

About  Calvert
Calvert  Asset  Management  Company, Inc.  (4550 Montgomery Avenue, Suite 1000N,
Bethesda,  MD  20814)  ("CAMCO"  or "Calvert") is the Fund's investment advisor.
Calvert  provides the Fund with investment supervision and management and office
space;  furnishes  executive  and  other  personnel  to  the  Fund; and pays the
salaries  and  fees  of  all  Trustees who are employees of Calvert. It has been
managing mutual funds since 1976.  Calvert is the investment advisor for over 25
mutual  fund  portfolios,  including  the  first  and largest family of socially
screened  funds.  As  of  December  31,  1999,  Calvert had over $6.5 billion in
assets  under  management.


Subadvisor
Turner  Investment  Partners,  Inc.  (1235 Westlakes Drive, Berwyn, Pennsylvania
19312)  has  managed  the  Portfolio  since  inception.  It  uses  a disciplined
approach  to  investing  in  growth  stocks  based  on the premise that earnings
expectations  drive  stock  prices.

Bob  Turner  is  the  founder,  chairman, and chief investment officer of Turner
Investment  Partners.  He  heads  the  Fund's  portfolio  management  team.  A
Chartered  Financial  Analyst,  he was previously senior investment manager with
Meridian  Investment  Company.

The  Fund  has  obtained  an  exemptive  order  from the Securities and Exchange
Commission to permit the Fund, pursuant to approval by the Board of Trustees, to
enter  into  and  materially amend contracts with the Fund's Subadvisors without
shareholder  approval.  See  "Investment  Advisor and Subadvisor" in the SAI for
further  details.

Advisory  Fees
The  Fund's advisory agreement provides for the Fund to pay CAMCO a fee of 1.25%
of  the  Fund's  average  daily  net  assets.

<PAGE>
HOW  TO  BUY  SHARES

Getting  Started  -  Before  You  Open  an  Account
You  have  a  few decisions to make before you open an account in a mutual fund.

First,  decide  which  fund  or  funds  best  suits  your  needs and your goals.

Second, decide what kind of account you want to open. Calvert offers individual,
joint,  trust, Uniform Gifts/Transfers to Minor Accounts, Traditional, Education
and  Roth  IRAs, Qualified Profit-Sharing and Money Purchase Plans, SIMPLE IRAs,
SEP-IRAs,  403(b)(7)  accounts,  and  several  other  types of accounts. Minimum
investments  are  lower  for  the  retirement  plans.

Then  decide  which  class  of  shares  is  best  for  you.

You  should  make  this  decision  carefully,  based  on:
-  the  amount  you  wish  to  invest;
-  the  length  of  time  you  plan  to  keep  the  investment;  and
-  the  Class  expenses.

Choosing  a  Share  Class


This  prospectus  offers three different Classes (Class A, B, or C) of the Fund.
The  chart  on  the  following  page shows the difference in the Classes and the
general  types  of  investors  who  may  be  interested  in  each  Class.



<PAGE>
Class  A:
Front-End  Sales
Charge

For all investors, particularly those investing a substantial amount who plan to
hold  the  shares  for  a  long  period  of  time.

Sales  charge  on  each  purchase  of 4.75% or less, depending on the amount you
invest.


Class  A  shares  have  an  annual  12b-1  fee  of  up  to  0.25%.


Class  A  shares  have  lower  annual  expenses  due  to  a  lower  12b-1  fee.

Purchases  of Class A shares at NAV for accounts with $1,000,000 or more will be
subject  to  a  1.0%  deferred  sales  charge  for  1  year.
Class  B:
Deferred  Sales
Charge  for  6  years

For investors who plan to hold the shares at least 6 years. The expenses of this
class  are  higher  than  Class  A,  because  of  the  12b-1  fee.

No  sales  charge  on each purchase, but if you sell your shares within 6 years,
you  will  pay  a  deferred  sales  charge  of  5%  or  less on shares you sell.

Class  B  shares  have  an  annual  12b-1  fee  of  1.00%.

Your shares will automatically convert to Class A shares after 8 years, reducing
your  future  annual  expenses.

If  you are investing more than $250,000, you should consider investing in Class
A or C.
Class  C:
Deferred  Sales
Charge  for  1  year

For  investors who are investing for at least one year, but less than six years.
The  expenses  of  this Class are higher than Class A, because of the 12b-1 fee.

No sales charge on each purchase, but if you sell shares within 1 year, then you
will  pay  a  deferred  sales  charge  of  1%  at  that  time.

Class  C  shares  have  an  annual  12b-1  fee  of  1.00%.

Class  C  shares  have  higher  annual  expenses  than  Class  A and there is no
automatic  conversion  to  Class  A.

If  you  are  investing  more  than  $1,000,000,  you  should invest in Class A.


<PAGE>
Class  A
If you choose Class A, you will pay a sales charge at the time of each purchase.
This  table  shows  the  charges both as a percentage of offering price and as a
percentage of the amount you invest. The term "offering price" means the NAV per
share  plus  the front-end sales charge. If you invest more, the percentage rate
of the sales charge will be lower. For example, if you invest more than $50,000,
or  if  your  cumulative  purchases  or  the  value in your account is more than
$50,000,4  then  the  sales  charge  is  reduced  to  3.75%.


Your  investment  in             Sales  Charge  %          %  of  Amt.
Class  A  shares               of offering price              Invested
Less  than  $50,000                      4.75%               4.99%
$50,000  but  less  than  $100,000       3.75%               3.90%
$100,000  but  less  than  $250,000      2.75%               2.83%
$250,000  but  less  than  $500,000      1.75%               1.78%
$500,000  but  less  than  $1,000,000    1.00%               1.01%
$1,000,000  and  over                    None*               None*


4     This is called "Rights of Accumulation." The sales charge is calculated by
taking  into  account  not only the dollar amount of the new purchase of shares,
but  also  the  higher  of  cost  or current value of shares you have previously
purchased  in  Calvert Group Funds that impose sales charges. This automatically
applies  to  your  account  for  each  new  purchase  of  Class  A  shares.

*     Purchases  of  Class  A shares at NAV for accounts with $1,000,000 or more
are  subject  to  a  one  year CDSC of 1.00%. See the "Calculation of Contingent
Deferred  Sales  Charge  and  Waiver  of  Sales  Charges."

The  Class  A  front-end  sales  charge  may  be waived for certain purchases or
investors,  such  as  participants  in  certain  group retirement plans or other
qualified  groups  and clients of registered investment advisers. For details on
these  and  other  purchases  that  may  qualify for a reduced sales charge, see
Exhibit  A.

Class  B
If  you  choose Class B, there is no front-end sales charge like Class A, but if
you sell the shares within the first 6 years, you will have to pay a "contingent
deferred"  sales  charge  ("CDSC").  Keep  in  mind that the longer you hold the
shares,  the  less  you  will  have  to  pay  in  deferred  sales  charges.

Time  Since  Purchase     CDSC  %
1st  year                      5%
2nd  year                      4%
3rd  year                      4%
4th  year                      3%
5th  year                      2%
6th  year                      1%
After  6  years              None


<PAGE>
Calculation  of  Contingent  Deferred  Sales  Charge and Waiver of Sales Charges
The CDSC will not be charged on shares you received as dividends or from capital
gains distributions or on any capital appreciation (gain in the value) of shares
that  are  sold.

Shares  that  are  not  subject  to the CDSC will be redeemed first, followed by
shares  you  have  held  the  longest. The CDSC is calculated by determining the
share  value  at  both  the time of purchase and redemption and then multiplying
whichever  value  is  less by the percentage that applies as shown above. If you
choose  to  sell  only  part  of your shares, the capital appreciation for those
shares only is included in the calculation, rather than the capital appreciation
for  the  entire  account.

The  CDSC  on  Class  B  Shares  will  be waived in the following circumstances:

-     Redemption  upon  the  death  or  disability  of  the  shareholder,  plan
participant,  or  beneficiary.1
-     Minimum  required  distributions  from  retirement  plan  accounts  for
shareholders  70  1/2  and  older.2
-     The  return  of  an  excess  contribution or deferral amounts, pursuant to
sections  408(d)(4)  or  (5), 401(k)(8), 402(g)(2), or 401(m)(6) of the Internal
Revenue  Code.
-     Involuntary  redemptions  of  accounts  under  procedures set forth by the
Fund's  Board  of  Trustees/Directors.
-     A single annual withdrawal under a systematic withdrawal plan of up to 10%
of  the  shareholder's  account  balance.3

1     "Disability"  means  a total disability as evidenced by a determination by
the  federal  Social  Security  Administration.
2     The  maximum  amount  subject  to  this  waiver  is  based  only  upon the
shareholder's  Calvert  Group  retirement  accounts.
3     This  systematic  withdrawal  plan  requires  a minimum account balance of
$50,000  to  be  established.

Class  C
If  you  choose Class C, there is no front-end sales charge like Class A, but if
you sell the shares within the first year, you will have to pay a 1% CDSC. Class
C  may  be  a good choice for you if you plan to buy shares and hold them for at
least  1  year,  but  not  more  than  five  or  six  years.


<PAGE>
Distribution  and  Service  Fees
The  Fund  has  adopted a plan under Rule 12b-1 of the Investment Company Act of
1940 that allows the Fund to pay distribution fees for the sale and distribution
of  its shares. The distribution plan also pays service fees to persons (such as
your  financial  professional)  for  services  provided to shareholders. Because
these fees are paid out of a Fund's assets on an ongoing basis, over time, these
fees will increase the cost of your investment and may cost you more than paying
other  types  of  sales  charges.  Please  see  Exhibit  B  for more service fee
information.


The  table  below  shows  the  maximum  annual  percentage  payable  under  the
distribution  plan.  The  fees  are  based  on  average  daily net assets of the
particular  Class.

          Maximum  Payable  under  Plan

     Class  A          Class  B          Class  C
        0.25%             1.00%            1.00%


NEXT  STEP  -  ACCOUNT  APPLICATION

Complete  and  sign  an  application  for each new account. Please specify which
class  you  wish  to  purchase.  For  more  information,  contact your financial
professional  or  our  sales  department  at  800-368-2748.


Minimum  To  Open  an  Account                   Minimum  additional investments
                      $2,000                                   $250


Please  make  your  check  payable
to  the  Fund  and  mail  it  to  Calvert's  transfer  agent  at:

     New  Accounts               Subsequent  Investments
     (include  application):     (include  investment  slip):
     Calvert  Group              Calvert  Group
     P.O.  Box  219544           P.O.  Box  219739
     Kansas,  City  MO           Kansas  City,  MO
     64121-9544                  64121-9739

     By  Registered,                   Calvert  Group
     Certified,  or                    c/o  NFDS,
     Overnight  Mail                   330  West  9th  St.
     Kansas  City,  MO  64105-1807



<PAGE>
IMPORTANT  -  HOW  SHARES  ARE  PRICED
The  price  of  shares  is  based  on the Fund's net asset value ("NAV"). NAV is
computed  by  adding  the  value  of  the  Fund's  holdings  plus  other assets,
subtracting  liabilities,  and  then dividing the result by the number of shares
outstanding. The NAV of each class will be different, depending on the number of
shares  outstanding  for  each  class.

Portfolio  securities  and  other  assets are valued based on market quotations,
except  that securities maturing within 60 days are valued at amortized cost. If
market  quotations  are not readily available, securities are valued by a method
that  the  Fund's  Board  of  Trustees  believes accurately reflects fair value.

The NAV is calculated as of the close of each business day, which coincides with
the  closing  of  the  regular  session  of the New York Stock Exchange ("NYSE")
(normally  4  p.m. ET). The Fund is open for business each day the NYSE is open.
Please  note that there are some federal holidays, however, such as Columbus Day
and  Veterans'  Day,  when  the  NYSE is open and the Fund is open but purchases
cannot  be  received  because  the  banks  and  post  offices  are  closed.

The Fund may hold securities that are primarily listed on foreign exchanges that
trade  on  days  when the NYSE is closed. The Fund does not price shares on days
when  the  NYSE is closed, even if foreign markets may be open. As a result, the
value  of  the Fund's shares may change on days when you will not be able to buy
or  sell  your  shares.


WHEN  YOUR  ACCOUNT  WILL  BE  CREDITED
Your  purchase  will be processed at the NAV next calculated after your order is
received  by  the  transfer agent in Kansas City, MO (see addresses on preceding
page).  All  of  your purchases must be made in US dollars and indicate the Fund
and  Class.  No cash will be accepted or third party checks will be accepted. No
credit  card or credit loan checks will be accepted. The Fund reserves the right
to suspend the offering of shares for a period of time or to reject any specific
purchase order. Any check purchase received without an investment slip may cause
delayed  crediting.  Any  purchase  less  than  $250  minimum  for  subsequent
investments  will be charged a fee of $5 payable to the Fund. If your check does
not  clear  your  bank, your purchase will be canceled and you will be charged a
$25 fee plus any costs incurred. All purchases will be confirmed and credited to
your account in full and fractional shares (rounded to the nearest 1/1000th of a
share).



<PAGE>
OTHER  CALVERT  GROUP  FEATURES


Calvert  Information  Network
For  24  hour  performance  and  account  information call 800-368-2745 or visit
www.calvert.com
You  can  obtain  current  performance  and  pricing information, verify account
balances,  and  authorize certain transactions with the convenience of one phone
call,  24  hours  a  day.


Account  Services
By  signing  up  for  services  when  you open your account, you avoid having to
obtain  a  signature  guarantee.  If you wish to add services at a later date, a
signature  guarantee  to  verify  your  signature may be obtained from any bank,
trust company and savings and loan association, credit union, broker-dealer firm
or  member  of  a  domestic  stock  exchange.  A  notary public cannot provide a
signature  guarantee.

Calvert  Money  Controller
Calvert  Money  Controller  allows  you to purchase or sell shares by electronic
funds transfer without the time delay of mailing a check or the added expense of
a wire. Use this service to transfer up to $300,000 electronically. Allow one or
two  business  days after you place your request for the transfer to take place.
Money  transferred  to  purchase new shares may be subject to a hold of up to 10
business  days  before redemption requests will be honored. Transaction requests
must be received by 4 p.m. ET to receive that day's price.  You may request this
service  on  your  initial  account  application.  Calvert  Money  Controller
transactions  returned  by  your  bank  will  incur  a  $25  charge.

Telephone  Transactions
You  may  purchase,  redeem,  exchange  shares, wire funds and use Calvert Money
Controller  by  telephone  if  you  have pre-authorized service instructions and
established bank instructions on your account, when opened or at a later date by
a  signature  guaranteed letter . You receive telephone privileges automatically
when  you  open  your  account unless you instruct us otherwise in writing While
telephone  redemption  is  easy  and convenient, this account feature involves a
risk  of  loss  from  unauthorized or fraudulent transactions. Calvert will take
reasonable  precautions  to  protect your account from fraud.  You should do the
same  by  keeping your account information private and immediately reviewing any
confirmations  or  account  statements  that  we  send you. Make sure to contact
Calvert  immediately  about  any  transaction  you  believe  to be unauthorized.

We reserve the right to refuse a telephone redemption if the caller is unable to
provide:

-     The  account  number.
-     The  name  and  address  exactly  as  registered  on  the  account.
-     The  primary  Social  Security  or  employer  identification  number  as
registered  on  the  account.

<PAGE>
Please  note  that Calvert will not be responsible for any account losses due to
telephone  fraud,  so  long  as  we  have  taken  reasonable steps to verify the
caller's  identity.  If you wish to remove the telephone redemption feature from
your  account,  please  notify  us  in  writing.

Exchanges
Calvert  Group  offers a wide variety of investment options that includes common
stock  funds,  tax-exempt and corporate bond funds, and money market funds (call
your broker or Calvert representative for more information). We make it easy for
you  to  purchase shares in other Calvert funds if your investment goals change.
The  exchange privilege offers flexibility by allowing you to exchange shares on
which  you  have  already  paid  a  sales charge from one Calvert mutual fund to
another  at  no  additional  charge.

Complete  and  sign  an  account  application,  taking care to register your new
account  in  the  same  name and taxpayer identification number as your existing
Calvert  account(s).  Exchange  instructions  may  then be given by telephone if
telephone redemptions have been authorized and the shares are not in certificate
form.


Before  you  make  an  exchange,  please  note  the  following:
Each  exchange  represents  the  sale  of shares of one Fund and the purchase of
shares  of  another.  Therefore,  you  could  realize  a  taxable  gain or loss.

You  may  exchange shares acquired by reinvestment of dividends or distributions
into  another  Calvert  Fund  at  no  additional  charge.

Shares  may  only  be  exchanged for shares of the same class of another Calvert
Fund.

No  CDSC  is imposed on exchanges of shares subject to a CDSC at the time of the
exchange.  The applicable CDSC is imposed at the time the shares acquired by the
exchange  are  redeemed.

Bank  Holidays:  On  any  day  Calvert  is open but the Fund's custodian bank is
closed (e.g., Columbus Day and Veteran's Day) exchange requests into or out of a
money  market  fund  will  be  priced  at  the next determined NAV, but will not
receive  any  dividend  in  the  money market fund until the next day the Fund's
custodian  bank  is  open.


The  Fund  and the distributor reserve the right at any time to reject or cancel
any  part  of  any purchase or exchange order; modify any terms or conditions of
purchase of shares of any Fund; or withdraw all or any part of the offering made
by  this  prospectus.  To  protect the interests of investors, each Fund and the
distributor  may  reject  any order considered to be market-timing activity (the
purchase and sale of securities based on short-term price patterns as well as on
asset  values).


The  Fund  reserves the right to terminate or modify the exchange privilege with
60  days'  written  notice.

<PAGE>
Electronic  Delivery  of  Prospectuses  and  Shareholder  Reports
You  may  request  to receive electronic delivery of prospectuses and annual and
semi  annual  reports.

Combined  General  Mailings  (Householding)
Multiple  accounts with the same social security number will receive one mailing
per  household  of  information  such as prospectuses and semi-annual and annual
reports. You may request further grouping of accounts to receive fewer mailings.
Separate  statements  will  be  generated  for each separate account and will be
mailed  in  one  envelope  for  each  combination  above.


Special  Services  and  Charges
The  Fund  pays  for  shareholder services but not for special services that are
required by a few shareholders, such as a request for a historical transcript of
an  account  or  a stop payment on a draft. You may be required to pay a fee for
these  special  services.  If  you  are  purchasing  shares through a program of
services  offered  by  a broker/dealer or financial institution, you should read
the  program  materials  together  with this Prospectus. Certain features may be
modified  in  these  programs.  Investors  may  be  charged a fee if they effect
transactions  in  Fund  shares  through  a  financial  intermediary.


Minimum  Account  Balance
Please  maintain  a balance in each of your Fund accounts of at least $1,000 per
class.  If  the  balance in your account falls below the minimum during a month,
your account may be closed and the proceeds mailed to the address of record. You
will  receive  notice  that  your  account is below the minimum (for any reason,
including  a  decline  in the value of the Fund's shares), and will be closed if
the  balance  is  not  brought  up  to  the  required  minimum  within  30 days.


To protect investors, the Fund may reject certain small retirement plan accounts
where  the  accounting  and transaction expenses would be a burden to other Fund
shareholders.

DIVIDENDS,  CAPITAL  GAINS  AND  TAXES
The  Fund pays dividends from its net investment income annually. Net investment
income  consists  of  interest income, net short-term capital gains, if any, and
dividends  declared and paid on investments, less expenses. Distributions of net
short-term  capital  gains  (treated  as  dividends  for  tax  purposes) and net
long-term  capital  gains,  if  any, are normally paid once a year; however, the
Fund  does not anticipate making any such distributions unless available capital
loss  carryovers  have  been  used  or  have  expired. Dividend and distribution
payments  will  vary  between  classes.


<PAGE>
Dividend  payment  options
Dividends and any distributions are automatically reinvested in the same Fund at
NAV (without sales charge), unless you elect to have amounts of $10 or more paid
in  cash  (by check or by Calvert Money Controller). Dividends and distributions
from  any  Calvert  Group  Fund  may be automatically invested in the same share
class  of an identically registered account in the same share class of any other
Calvert Group Fund at NAV. If reinvested in the same account, new shares will be
purchased  at NAV on the reinvestment date, which is generally 1 to 3 days prior
to the payment date. You must notify the Funds in writing to change your payment
options.  If  you elect to have dividends and/or distributions paid in cash, and
the  US Postal Service returns the check as undeliverable, it, as well as future
dividends  and  distributions,  will  be  reinvested  in  additional  shares. No
dividends  will  accrue  on  amounts  represented  by  uncashed  distribution or
redemption  checks.

Buying  a  Dividend
At the time of purchase, the share price of each class may reflect undistributed
income,  capital  gains  or unrealized appreciation of securities. Any income or
capital  gains  from  these amounts which are later distributed to you are fully
taxable.  On  the  record date for a distribution, share value is reduced by the
amount  of  the  distribution.  If  you  buy  shares just before the record date
("buying  a  dividend")  you  will  pay  the  full price for the shares and then
receive  a  portion  of  the  price  back  as  a  taxable  distribution.

Federal  Taxes
In  January,  the  Fund  will  mail you Form 1099-DIV indicating the federal tax
status  of  dividends  and any capital gain distributions paid to you during the
past  year.  Generally, dividends and distributions are taxable in the year they
are  paid. However, any dividends and distributions paid in January but declared
during  the  prior  three months are taxable in the year declared. Dividends and
distributions are taxable to you regardless of whether they are taken in cash or
reinvested.  Dividends,  including  short-term  capital  gains,  are  taxable as
ordinary  income.  Distributions  from  long-term  capital  gains are taxable as
long-term  capital  gains,  regardless  of  how  long  you  have  owned  shares.

You  may  realize  a capital gain or loss when you sell or exchange shares. This
capital gain or loss will be short- or long-term, depending on how long you have
owned the shares which were sold. In January, the Fund will mail you Form 1099-B
indicating  the  total amount of all sales, including exchanges. You should keep
your  annual  year-end  account  statements to determine the cost (basis) of the
shares  to  report  on  your  tax  returns.

Other  Tax  Information
In addition to federal taxes, you may be subject to state or local taxes on your
investment,  depending  on  the  laws  in your area. You will be notified to the
extent,  if  any,  that  dividends  reflect interest received from US government
securities.  Such  dividends  may  be  exempt  from  certain state income taxes.


<PAGE>
Taxpayer  Identification  Number
If we do not have your correct Social Security or Taxpayer Identification Number
("TIN")  and a signed certified application or Form W-9, Federal law requires us
to  withhold  31%  of  your  reportable  dividends,  and possibly 31% of certain
redemptions.  In  addition, you may be subject to a fine by the Internal Revenue
Service.  You  will also be prohibited from opening another account by exchange.
Calvert Group reserves the right to reject any new account or any purchase order
for  failure  to  supply  a  certified  TIN.

HOW  TO  SELL  SHARES
You  may redeem all or a portion of your shares on any day your Fund is open for
business,  provided  the  amount  requested is not on hold. When you purchase by
check or with Calvert Money Controller (electronic funds transfer), the purchase
may  be  on hold for up to 10 business days from the date of receipt. During the
hold  period,  redemptions proceeds will not be sent until the Transfer Agent is
reasonably  satisfied  that the purchase payment has been collected. Your shares
will  be  redeemed  at  the NAV next calculated (less any applicable CDSC) after
your  redemption  request  is  received by the transfer agent in good order (see
below).  The proceeds will normally be sent to you on the next business day, but
if  making immediate payment could adversely affect your Fund, it may take up to
seven  (7)  days to make payment. Calvert Money Controller redemptions generally
will  be  credited  to  your  bank account by the second business day after your
phone  call.  The  Fund has the right to redeem shares in assets other than cash
for  redemption  amounts  exceeding, in any 90-day period, $250,000 or 1% of the
net asset value of the affected Fund, whichever is less. When the NYSE is closed
(or  when trading is restricted) for any reason other than its customary weekend
or  holiday  closings, or under any emergency circumstances as determined by the
Securities  and  Exchange  Commission,  redemptions  may be suspended or payment
dates postponed. Please note that there are some federal holidays, however, such
as  Columbus  Day  and Veterans' Day, when the NYSE is open and the Fund is open
but redemptions cannot be mailed or wired because the post offices and banks are
closed.

Follow these suggestions to ensure timely processing of your redemption request:

By  Telephone
You  may redeem shares from your account by telephone and have your money mailed
to  your  address of record or electronically transferred or wired to a bank you
have  previously  authorized. A charge of $5 may be imposed on wire transfers of
less  than  $1,000.  See  "Other Calvert Group Features-Telephone Transactions."

Written  Requests
Calvert  Group,  P.O.  Box  219544,  Kansas  City,  MO  64121-9544
Your letter should include your account number and fund and the number of shares
or  the  dollar  amount  you  are  redeeming. Please provide a daytime telephone
number,  if possible, for us to call if we have questions. If the money is being
sent  to  a  new bank, person, or address other than the address of record, your
letter  must  be  signature  guaranteed.


<PAGE>
Systematic  Check  Redemptions
If you maintain an account with a balance of $10,000 or more, you may have up to
two  (2)  redemption  checks  for  a fixed amount sent to you on the 15th of the
month,  simply  by sending a letter with all information, including your account
number,  and the dollar amount ($100 minimum). If you would like a regular check
mailed  to  another  person  or place, your letter must be signature guaranteed.
Unless  they  otherwise qualify for a waiver, Class B or Class C shares redeemed
by  Systematic Check Redemption will be subject to the Contingent Deferred Sales
Charge.

Corporations  and  Associations
Your  letter  of  instruction  and  corporate  resolution  should  be  signed by
person(s)  authorized  to  act  on  the  account,  accompanied  by  signature
guarantee(s).

Trusts
Your  letter  of instruction should be signed by the Trustee(s) (as Trustee(s)),
with  a  signature  guarantee.  (If the Trustee's name is not registered on your
account,  please provide a copy of the trust document, certified within the last
60  days.)

Through  your  Dealer
Your dealer must receive your request before the close of regular trading on the
NYSE  to  receive that day's NAV. Your dealer will be responsible for furnishing
all  necessary  documentation  to  Calvert Group and may charge you for services
provided.

Request  in  "Good  Order"
All  redemption requests must be received by the transfer agent in "good order."
This  means  that  your  request  must  include:

-     The  Fund  name  and  account  number
-     The  amount  of  the  transaction  (in  dollars  or  shares).
-     Signatures  of  all  owners exactly as registered on the account (for mail
requests).
-     Signature  guarantees  (if  required).*
-     Any  supporting  legal  documentation  that  may  be  required.
-     Any  outstanding  certificates  representing  shares  to  be  redeemed.


*For  instance, a signature guarantee must be provided by all registered account
shareholders when redemption proceeds are sent to a different person or address.
A  signature  guarantee  can be obtained from most commercial and savings banks,
credit unions, trust companies, or member firms of a U.S. stock exchange. Please
note:  Notarization  is  not  the  equivalent  of  a  signature  guarantee.


Transactions are processed at the next determined share price after the transfer
agent  has  received  all  required  information.

<PAGE>
EXHIBIT  A
REDUCED  SALES  CHARGES  (CLASS  A  ONLY)

You  may  qualify  for  a  reduced  sales  charge through several purchase plans
available. You must notify the Fund at the time of purchase to take advantage of
the  reduced  sales  charge.

Rights  of  Accumulation  can  be  applied  to  several  accounts
Class  A  sales charge breakpoints are automatically calculated for each account
based  on  the  higher  of cost or current value of shares previously purchased.
This  privilege  can be applied to a family group or other qualified group* upon
request.  Shares  could  then  be  purchased  at  the reduced sales charge which
applies  to  the  entire  group; that is, based on the higher of cost or current
value  of  shares  previously purchased and currently held by all the members of
the  group.

*  A  "qualified  group"  is  one  which:
1.  has  been  in  existence  for  more  than  six  months,  and
2.  has  a  purpose  other  than  acquiring  shares  at  a  discount,  and
3.  satisfies  uniform  criteria which enable CDI and brokers offering shares to
realize  economies  of  scale  in  distributing  such  shares.

A  qualified  group must have more than 10 members, must be available to arrange
for  group  meetings  between  representatives  of  CDI  or brokers distributing
shares,  must agree to include sales and other materials related to the Funds in
its  publications  and  mailings  to  members  at  reduced  or no cost to CDI or
brokers.  A  pension  plan  is not a qualified group for rights of accumulation.

Letter  of  Intent
If  you  (or your group, as described above) plan to purchase $50,000 or more of
Calvert  Fund  shares  over the next 13 months, your sales charge may be reduced
through  a  "Letter of Intent." You pay the lower sales charge applicable to the
total  amount  you  plan to invest over the 13-month period, excluding any money
market  fund  purchases,  instead of the higher 4.75% sales charge. Part of your
shares  will  be  held  in  escrow,  so  that  if  you  do not invest the amount
indicated,  you  will  have  to  pay  the sales charge applicable to the smaller
investment  actually  made.  For  more  information,  see  the  SAI.

Retirement  Plans  Under  Section  457,  Section  403(b)(7),  or  Section 401(k)
There  is  no  sales  charge on shares purchased for the benefit of a retirement
plan  under  section  457  of  the  Internal  Revenue  Code  of 1986, as amended
("Code"),  or  for  a plan qualifying under section 403(b) or 401(k) of the Code
if, at the time of purchase, (i) Calvert Group has been notified in writing that
the  403(b)  or  401(k)  plan  has  at  least  200 eligible employees and is not
sponsored by a K-12 school district, or (ii) the cost or current value of shares
a  401(k)  plan  has in Calvert Group of Funds (except money market funds) is at
least  $1  million.

Neither  the  Fund,  nor  Calvert  Distributors, Inc. ("CDI"), nor any affiliate
thereof will reimburse a plan or participant for any sales charges paid prior to
receipt  of

<PAGE>
such  written  communication  and  confirmation  by  Calvert  Group.  Plan
administrators should send requests for the waiver of sales charges based on the
above  conditions  to:  Calvert  Group Retirement Plans, 4550 Montgomery Avenue,
Suite  1000N,  Bethesda,  Maryland  20814.

Other  Circumstances
There  is  no  sales  charge on shares of any Fund of the Calvert Group of Funds
sold  to  (i) current or retired Directors, Trustees, or Officers of the Calvert
Group  of  Funds,  employees of Calvert Group, Ltd. and its affiliates, or their
family  members;  (ii)  CSIF  Advisory Council Members, directors, officers, and
employees  of  any  subadvisor  for  the  Calvert  Group  of Funds, employees of
broker/dealers  distributing  the  Fund's shares and immediate family members of
the  Council,  subadvisor,  or  broker/dealer;  (iii)  Purchases  made through a
Registered  Investment  Advisor;  (iv)  Trust  departments  of  banks or savings
institutions  for  trust  clients  of  such  bank  or institution, (v) Purchases
through  a  broker  maintaining  an  omnibus account with the Fund, provided the
purchases  are  made  by  (a)  investment advisors or financial planners placing
trades  for their own accounts (or the accounts of their clients) and who charge
a  management,  consulting,  or  other fee for their services; or (b) clients of
such  investment  advisors  or financial planners who place trades for their own
accounts  if  such  accounts are linked to the master account of such investment
advisor or financial planner on the books and records of the broker or agent; or
(c)  retirement  and  deferred compensation plans and trusts, including, but not
limited to, those defined in section 401(a) or section 403(b) of the I.R.C., and
"rabbi  trusts."

Dividends  and  Capital  Gain  Distributions  from  other  Calvert  Group  Funds
You  may  prearrange  to have your dividends and capital gain distributions from
any  Calvert  Group  Fund  automatically  invested  in  another  account with no
additional  sales  charge.

Purchases  made  at  NAV
Except  for  money market funds, if you make a purchase at NAV, you may exchange
that  amount  to  another  Calvert  Group  Fund  at  no additional sales charge.

Reinstatement  Privilege
If  you  redeem  shares  and  then within 60 days decide to reinvest in the same
Fund,  you may do so at the net asset value next computed after the reinvestment
order  is  received,  without  a  sales  charge.  You  may use the reinstatement
privilege  only  once.  The  Fund reserves the right to modify or eliminate this
privilege.



<PAGE>
EXHIBIT  B
SERVICE  FEES  AND  ARRANGEMENTS  WITH  DEALERS

Calvert  Distributors,  Inc., the Fund's underwriter, pays dealers a commission,
or reallowance (expressed as a percentage of the offering price for Class A, and
a  percentage  of amount invested for Class B and C) when you purchase shares of
non-money  market  funds. CDI also pays dealers an ongoing service fee while you
own shares of that Fund (expressed as an annual percentage rate of average daily
net  assets  held in Calvert accounts by that dealer). The table below shows the
amount  of  payment  which  differs  depending  on  the  Class.

Maximum  Commission/Service  Fees

          Class  A          Class  B*          Class  C**
        4.00%/0.25%       4.00%/0.25%         1.00%/1.00%

*Class  B  service  fees  begins  to  accrue  in  13th  month.
**Class  C  pays  dealers  a service fee of 0.25% and additional compensation of
0.75%  for  a  total  of  1.00%.  Begins  to  accrue  in  13th  month.

Occasionally,  CDI  may  reallow  to  dealers  the  full Class A front-end sales
charge.  CDI may also pay additional concessions, including non-cash promotional
incentives,  such  as  merchandise  or  trips,  to  brokers employing registered
representatives who have sold or are expected to sell a minimum dollar amount of
shares  of  the Funds and/or shares of other Funds underwritten by CDI.  CDI may
make  expense  reimbursements  for  special  training  of  a broker's registered
representatives,  advertising  or  equipment, or to defray the expenses of sales
contests.  CAMCO,  CDI,  or  their affiliates may pay, from their own resources,
certain  broker-dealers  and/or  other persons, for the sale and distribution of
the  securities  or for services to the Fund.  These amounts may be significant.
Payments  may  include  additional  compensation  beyond the regularly scheduled
rates,  and  finder's  fees.  CDI  pays dealers a finder's fee on Class A shares
purchased  at NAV in accounts with $1 million or more. The finder's fee is 1% of
the  purchase  NAV  amount  on  the first $2 million, 0.80% on $2 to $3 million,
0.50%  on  $3  to $50 million, 0.25% on $50 to $100 million, and 0.15% over $100
million.  All  payments  will  be  in  compliance with the rules of the National
Association  of  Securities  Dealers,  Inc.



<PAGE>
To  Open  an  Account:
800-368-2748

Performance  and  Prices:
Calvert  Information  Network
24  hours,  7  days  a  week
800-368-2745
www.calvert.com

Service  for  Existing  Accounts:
Shareholders  800-368-2745
Brokers  800-368-2746

TDD  for  Hearing-Impaired:
800-541-1524

Branch  Office:
4550  Montgomery  Avenue
Suite  1000N
Bethesda,  Maryland  20814

Registered,  Certified  or
Overnight  Mail:
Calvert  Group
c/o  NFDS
330  West  9th  Street
Kansas  City,  MO  64105

Calvert  Group  Web-Site
Address:  http://www.calvert.com


PRINCIPAL  UNDERWRITER
Calvert  Distributors,  Inc.
4550  Montgomery  Avenue
Suite  1000N
Bethesda,  Maryland  20814



<PAGE>

For  investors who want more information about the Fund, the following documents
will  be  available,  once  filed,  free  upon  request:


Annual/Semi-Annual  Reports: Additional information about the Fund's investments
is  available  in  the Fund's Annual and Semi-Annual reports to shareholders. In
the  Fund's  annual  report, you will find a discussion of the market conditions
and  investment  strategies  that  significantly affected the Fund's performance
during  its  last  fiscal  year.

Statement  of  Additional  Information (SAI): The SAI for the Fund provides more
detailed  information about the Fund and is incorporated into this prospectus by
reference.

You  can  get  free  copies  of  reports and SAIs, request other information and
discuss your questions about the Fund by contacting your broker, or the Fund at:

Calvert  Group
4550  Montgomery  Ave,  Suite  1000N
Bethesda,  Md.  20814

Telephone:  1-800-368-2745

Calvert  Group  Web-Site
Address:  http://www.calvert.com


You  can  review  the  Fund's report and SAI at the Public Reference Room of the
Securities  and  Exchange  Commission.  You  can  get  text-only  copies:

For a fee, by writing to or calling the Public Reference Room of the Commission,
Washington,  D.C. 20549-0102, Telephone: 1-202-942-8090 or by electronic request
at  the  following  E-mail  address:  [email protected].


Free  from  the  Commission's  Internet  website  at  http://www.sec.gov.

Investment  Company  Act  file:     no.  811-  3334





<PAGE>










PROSPECTUS
October  31,  2000
Calvert  Social  Investment  Fund  -  Technology  Portfolio
Class  I  (Institutional)  Shares






TABLE  OF  CONTENTS

     About  the  Fund
          Investment  objective,  strategy                       1
          Fees  and  Expenses                                    1
          Investment  Practices  and  Related  Risks             2
          High  Social  Impact  Investments                      3
          Special  Equities                                      4
          Shareholder  Advocacy  and  Social  Responsibility     5
     About  Your  Investment
          Subadvisor                                             5
          Advisory  Fees                                         5
          How  to  Open  an  Account                             5
          Important  -  How  Shares  are  Priced                 5
          When  Your  Account  Will  be  Credited                6
          Other  Calvert  Group  Features
          (Exchanges,  Minimum  Account  Balance,  etc.)         6
          Dividends,  Capital  Gains  and  Taxes                 7
          How  to  Sell  Shares                                  7

These  securities  have  not  been approved or disapproved by the Securities and
Exchange Commission (SEC) or any State Securities Commission, nor has the SEC or
any  State  Securities  Commission  passed  on  the accuracy or adequacy of this
prospectus.  Any  representation  to  the  contrary  is  a  criminal  offense.


<PAGE>
Objective
The  Fund  seeks  growth  of  capital  through investment in stocks in companies
involved  in  the  development,  advancement,  and  use  of  technology.


Principal  investment  strategies
The  Fund invests primarily in stocks of companies that develop new technologies
and  that  may  experience  exceptional  growth  in sales and earnings driven by
technology  related products and services. These companies may include companies
that  develop,  produce  or  distribute  products  or  services in the computer,
semiconductor,  electronics,  communications,  health  care  and  biotechnology
sectors.



The  Fund  will  invest  at  least  65%  of its assets in the stocks of U.S. and
non-U.S. companies principally engaged in research, development, and manufacture
of  technology  and  in  the  stocks  of  companies that should benefit from the
commercialization of technological advances.  The Fund may also invest up to 10%
in  private equity (the investments are generally venture capital investments in
small untried enterprises that are not traded on a public exchange) and short at
least  10%  of  the  net  asset  value.



The  goal  of  the  investment  selection  process is to identify candidates for
investment  that  are  growth  companies  with  superior  earnings  prospects,
reasonable  valuations,  and  favorable  trading  volume and price patterns. The
process  is  based  on one philosophy: earnings expectations drive stock prices.
The Fund invests in companies with strong earnings prospects that the Subadvisor
expects  to  produce  gains  over time. Investments are selected on the basis of
their  ability  to  contribute to the dual objectives of financial soundness and
social  criteria.  The  Fund  buys  companies with strong earnings dynamics, and
sells  those  with  deteriorating  earnings prospects. Security selection is the
primary  means  of  adding  investment  value.  The  Fund uses an active trading
strategy which may cause the Fund to have a relatively high amount of short-term
capital gains, which are taxable to you, the shareholder, at the ordinary income
tax  rate.



The  Fund  invests  with the philosophy that long-term rewards to investors will
come  from those organizations whose products, services, and methods enhance the
human  condition  and  the traditional American values of individual initiative,
equality  of  opportunity  and  cooperative  effort.

Principal  risks
The  Fund  is  designed  for  long-term  investors  who  are  willing  to accept
above-average  risk and volatility in order to seek a higher rate of return over
time.  You  could  lose  money on your investment in the Fund, or the Fund could
underperform  for  any  of  the  following  reasons:


-     The  technology  sector involves special risks, such as the faster rate of
change  and  obsolescence of technological advances, and has been among the most
volatile  sectors  of  the  stock market. The Fund's share price is likely to be
more  volatile  than  other  funds that do not concentrate in one market sector.
-     The  stock  market  goes  down
-     The  individual  stocks  in  the  Fund  do not perform as well as expected
-     The  Fund  is  subject  to  the  risk  that  its principal market segment,
technology  stocks, may underperform compared to other market segments or to the
equity  markets  as  a  whole
-     The  Fund is non-diversified. Compared to other funds, the Fund may invest
more of its assets in a smaller number of companies. Gains or losses on a single
stock  may  have  greater  impact  on  the  Fund


An investment in the Fund is not a bank deposit and is not insured or guaranteed
by  the  Federal  Deposit  Insurance Corporation or any other government agency.


(No  performance  results  are shown for the Fund since it has been in existence
for  less  than  one  calendar  year.)


Fees  and  Expenses
This  table  describes  the  fees  and  expenses  that  you  may  pay  if
you  buy  and  hold  shares  of  the  Fund.  Annual  Fund  operating
expenses  are  deducted  from  Fund  assets.


Annual  fund  operating  expenses1
(expenses  deducted  from  Fund  assets)
Management  fees                                  1.30%
Distribution  and  service  (12b-1)  fees          none
Other  expenses                                    .09%
Total  annual  fund  operating  expenses          1.39%
Fee  waiver  and/or  expense  reimbursement2       .04%
Net  expenses                                     1.35%


1          Expenses  are  based on estimates for the Fund's current fiscal year.
Management  fees include the Subadvisory fees paid by the Advisor, Calvert Asset
Management  Company,  Inc.  ("CAMCO"  or  "Calvert")  to the Subadvisor, and the
administrative  fee paid by the Fund to Calvert Administrative Services Company,
an  affiliate  of  CAMCO.
2     CAMCO  has  agreed  to  limit  annual  fund operating expenses (net of any
expense offset arrangements) through September 30, 2001. The contractual expense
cap is shown as "Net expenses," this is the maximum amount of operating expenses
that  may be charged to the Fund through September 30, 2001. For the purposes of
this  expense  limit,  operating  expenses  do  not  include  interest  expense,
brokerage commissions, extraordinary expenses, taxes and capital items. The Fund
has  an  offset  arrangement  with  the custodian bank whereby the custodian and
transfer  agent  fees may be paid indirectly by credits on the Fund's uninvested
cash  balances.  These  credits  are  used  to  reduce  the  Fund's  expenses.



<PAGE>
Example
This  example  is  intended  to help you compare the cost of investing in a Fund
with  the  cost  of  investing  in  other  mutual  funds.

The  example  assumes  that:

-          You  invest  $1,000,000  in  the  Fund  for  the  time  periods
indicated;
-     Your  investment  has  a  5%  return  each  year;  and
-     The  Fund's  operating  expenses  remain  the  same.

Although  your actual costs may be higher or lower, under these assumptions your
costs  would  be  as  follows  if the Class I shares are held for 1, or 3 years:


Number  of  Years  Investment  is  Held
     1  Year          3  Years

     $13,746            43,611


Investment  Practices  and  Related  Risks
On  the  following pages are brief descriptions of the principal investments and
techniques,  summarized  earlier,  along  with  certain  additional  investment
techniques and their risks. For each of the investment practices listed, we show
the principal types of risk involved. (See the following pages for a description
of  the  types  of  risks).

Investment  Practices

Stocks  in  General.  The  Fund  is  subject to stock market risk.  Stock prices
overall may decline over short or even long periods. The Fund is also subject to
investment  style  risk,  which  is  the  chance  that  returns  from  large and
mid-capitalization  stocks  will  trail  returns from other asset classes or the
overall  stock  market.  Each  type of stock tends to go through cycles of doing
better or worse than the stock market in general. Finally, individual stocks may
lose  value  for  a  variety  of reasons, even when the overall stock market has
increased.  Risks:  Market.

Active  Trading  Strategy/Turnover  involves  selling  a  security  soon  after
purchase.  An  active  trading  strategy  causes a fund to have higher portfolio
turnover  compared  to  other  funds  and  higher  transaction  costs,  such  as
commissions  and  custodian  and  settlement  fees,  and  may  increase your tax
liability.  Risks:  Opportunity,  Market,  Transaction  and  Tax.

Temporary  Defensive  Positions.
During  adverse  market,  economic  or political conditions, the Fund may depart
from  its  principal  investment  strategies  by  increasing  its  investment in
short-term  interest-bearing securities. During times of any temporary defensive
positions,  the  Fund may not be able to achieve its investment objective Risks:
Opportunity.

Conventional  Securities

Foreign  Securities.  Securities  issued  by  companies located outside the U.S.
and/or  traded  primarily  on  a  foreign  exchange.  Risks:  Market,  Currency,
Transaction,  Liquidity,  Information  and  Political.
Small  Cap  Stocks. Investing in small companies involves greater risk than with
more  established  companies.  Small  cap stock prices are more volatile and the
companies  often  have  limited product lines, markets, financial resources, and
management  experience.  Risks:  Market,  Liquidity  and  Information.

Investment  grade  bonds.  Bonds  rated  BBB/Baa or higher or comparable unrated
bonds.  Risks:  Interest  Rate,  Market  and  Credit.


Below-investment  grade  bonds.  Bonds rated below BBB/Baa or comparable unrated
bonds  are  considered  junk bonds. They are subject to greater credit risk than
investment  grade bonds. Such investments are permitted, but not typically used.
Risks:  Credit,  Market,  Interest  Rate,  Liquidity  and  Information.


Unrated  debt  securities. Bonds that have not been rated by a recognized rating
agency; the Advisor has determined the credit quality based on its own research.
Risks:  Credit,  Market,  Interest  Rate,  Liquidity  and  Information.

Illiquid securities. Securities which cannot be readily sold because there is no
active  market.  Risks:  Liquidity,  Market  and  Transaction.


Initial  Public  Offerings  ("IPOs").  IPOs are newly issued securities that may
have  volatile  prices  due  to speculation and the lack of any established long
term  price  history.  Accordingly,  IPOs  and  other  volatile  investments may
magnify  the  performance impact when the Fund assets are small or when the Fund
contains  a significant amount of such investments. Currently, there is no limit
on  the amount of IPOs that may be purchased by the Fund provided such purchases
are  within  the  Portfolio's  stated  objectives  and  guidelines.  Portfolio
performance  driven  by  IPO  purchases  may  not continue if assets grow or IPO
Portfolio  trading  changes.  Risks:  Market.


Leveraged  derivative  instruments

Currency contracts. Contracts involving the right or obligation to buy or sell a
given  amount  of  foreign currency at a specified price and future date. Risks:
Currency,  Leverage,  Correlation,  Liquidity  and  Opportunity.

Options on securities and indices. Contracts giving the holder the right but not
the obligation to purchase or sell a security (or the cash value, in the case of
an option on an index) at a specified price within a specified time. In the case
of  selling  (writing)  options,  the Funds will write call options only if they
already  own  the  security  (if  it  is  "covered").
Risks: Interest Rate, Currency, Market, Leverage, Correlation, Liquidity, Credit
and  Opportunity.

Futures  contract.  Agreement to buy or sell a specific amount of a commodity or
financial  instrument  at  a  particular price on a specific future date. Risks:
Interest  Rate,  Currency,  Market,  Leverage,  Correlation,  Liquidity  and
Opportunity.


<PAGE>

High  Social  Impact  Investments
High  Social  Impact  Investments  is a program that targets a percentage of the
Fund's  assets  (up  to  1%)  to  directly support the growth of community-based
organizations  for  the  purposes  of  promoting  business  creation,  housing
development, and economic and social development of urban and rural communities.
The  Fund may engage in this program upon reaching $50 million in assets.  These
types  of  investments  offer  a rate of return below the then-prevailing market
rate,  and  are  considered illiquid, unrated and may be deemed below-investment
grade.  They  also  involve  a  greater  risk  of  default or price decline than
investment  grade securities.  However, they have a significant social return by
making  a  difference  in our local communities.  High Social Impact Investments
are  valued  under  the  direction  and  control  of  the  Fund's  Board.


The  Fund  has  received  an exemptive order to permit it to invest those assets
allocated  for investment in High Social Impact Investments through the purchase
of Community Investment Notes from the Calvert Social Investment Foundation. The
Calvert  Social  Investment  Foundation  is  a  non-profit organization, legally
distinct  from  Calvert  Group,  organized  as  a  charitable  and  educational
foundation  for  the purpose of increasing public awareness and knowledge of the
concept  of  socially  responsible  investing.  The  Calvert  Social  Investment
Foundation  has  instituted  the  Calvert Community Investments program to raise
assets  from individual and institutional investors and then invest these assets
directly in non-profit or not-for-profit community development organizations and
community  development  banks  that  focus  on  low  income  housing,  economic
development  and  business  development  in  urban  and  rural  communities.

Special  Equities
The  Fund  has  a  Special  Equities  investment program that allows the Fund to
promote especially promising approaches to social goals through privately placed
investments. The investments are generally venture capital investments in small,
untried  enterprises.  The  Special  Equities  Committee  of  the  Fund's  Board
identifies,  evaluates,  and  selects  the Special Equities investments. Special
Equities  involve  a  high  degree  of  risk  -  they  are subject to liquidity,
information, and, if a debt investment, credit risk. Special Equities are valued
under  the  direction  and  control  of  the  Fund's  Board.

The  Fund  has  additional  investment  policies  and restrictions (for example,
repurchase  agreements,  borrowing, pledging, and reverse repurchase agreements,
and  securities  lending.)  These policies and restrictions are discussed in the
Statement  of  Additional  Information  ("SAI  ").

Types  of  Investment  Risk

Correlation  risk
This  occurs  when  a  Fund  "hedges"-  uses one investment to offset the Fund's
position  in  another.  If  the two investments do not behave in relation to one
another  the  way  Fund  managers  expect  them to, then unexpected or undesired
results may occur. For example, a hedge may eliminate or reduce gains as well as
offset  losses.

Credit  risk
The  risk  that  the  issuer  of a security or the counterparty to an investment
contract  may  default  or  become  unable  to  pay  its  obligations  when due.


Currency  risk
Currency  risk occurs when a Fund buys, sells or holds a security denominated in
foreign  currency.  Foreign currencies "float" in value against the U.S. dollar.
Adverse  changes  in  foreign  currency  values and currency controls imposed by
foreign  markets  can  cause  investment  losses  when  a Fund's investments are
converted  to  U.S.  dollars.


Information  risk
The  risk that information about a security or issuer or the market might not be
available,  complete,  accurate  or  comparable.

Interest  rate  risk
The  risk  that  changes in interest rates will adversely affect the value of an
investor's  securities.  When  interest  rates  rise,  the value of fixed-income
securities  will  generally  fall.  Conversely,  a  drop  in interest rates will
generally cause an increase in the value of fixed-income securities. Longer-term
securities  and  zero coupon/"stripped" coupon securities ("strips") are subject
to  greater  interest  rate  risk.

Leverage  risk
The  risk that occurs in some securities or techniques which tend to magnify the
effect  of small changes in an index or a market. This can result in a loss that
exceeds  the  amount  actually  invested.

Liquidity  risk
The risk that occurs when investments cannot be readily sold. A Fund may have to
accept  a less-than-desirable price to complete the sale of an illiquid security
or  may  not  be  able  to  sell  it  at  all.

Management  risk
The  risk that a Fund's portfolio management practices might not work to achieve
their  desired  result.

Market  risk
The  risk  that  securities  prices  in  a  market, a sector or an industry will
fluctuate,  and  that  such  movements  might  reduce  an  investment's  value.

Opportunity  risk
The  risk  of missing out on an investment opportunity because the assets needed
to  take  advantage  of  it  are  committed  to less advantageous investments or
strategies.

<PAGE>
Political  risk
The risk that may occur with foreign investments, and means that the value of an
investment  may  be  adversely  affected  by  nationalization,  taxation,  war,
government  instability  or  other  economic  or  political  actions or factors.

Transaction  risk
The  risk  that  a Fund may be delayed or unable to settle a transaction or that
commissions  and  settlement  expenses  may  be  higher  than  usual.


Investment  Selection  Process
Investments are selected on the basis of their ability to contribute to the dual
objectives  of financial soundness (a potential company's ability to realize and
grow  earnings)  and  social  criteria.


Potential  investments  for  the Fund are first selected for financial soundness
and  then  evaluated  according  to the Fund's social criteria.  To the greatest
extent  possible,  the  Fund  seeks to invest in companies that exhibit positive
accomplishments  with respect to one or more of the social criteria. Investments
for  the  Fund  must meet the minimum standards for all its financial and social
criteria.

Although the Fund's social criteria tend to limit the availability of investment
opportunities  more than is customary with other investment companies, CAMCO and
the Subadvisor of the Fund believe there are sufficient investment opportunities
to  permit full investment among issuers which satisfy the Fund's investment and
social  objectives.

The  selection  of  an investment by the Fund does not constitute endorsement or
validation  by  the  Fund,  nor  does the exclusion of an investment necessarily
reflect  failure to satisfy the Fund's social criteria. Investors are invited to
send  a  brief  description  of  companies  they  believe  might be suitable for
investment.

Socially  Responsible  Investment  Criteria
The  Fund  invests  in  accordance with the philosophy that long-term rewards to
investors  will  come  from  those  organizations  whose products, services, and
methods  enhance  the  human  condition  and  the traditional American values of
individual  initiative,  equality  of  opportunity  and  cooperative effort.  In
addition,  we  believe  that  there  are  long-term  benefits  in  an investment
philosophy that demonstrates concern for the environment, labor relations, human
rights  and  community  relations.  Those  enterprises  that  exhibit  a  social
awareness  in  these  issues  should  be better prepared to meet future societal
needs.  By  responding  to  social  concerns,  these enterprises should not only
avoid the liability that may be incurred when a product or service is determined
to  have  a  negative  social impact or has outlived its usefulness, but also be
better  positioned to develop opportunities to make a profitable contribution to
society.  These  enterprises  should be ready to respond to external demands and
ensure  that  over  the  longer  term  they  will be viable to seek to provide a
positive  return  to  both  investors  and  society  as  a  whole.

The  Fund  has  developed  social  investment  criteria,  detailed below.  These
criteria  represent  standards  of  behavior  which  few,  if any, organizations
totally  satisfy.  As  a  matter  of  practice,  evaluation  of  a  particular
organization  in  the context of these criteria will involve subjective judgment
by  CAMCO and the Subadvisor. All social criteria may be changed by the Board of
Trustees  without  shareholder  approval.

The  Fund  seeks  to  invest  in  companies  that:

-     Deliver  safe  products  and  services  in  ways  that sustain our natural
environment.  For example, the Fund looks for companies that produce energy from
renewable  resources,  while  avoiding  consistent  polluters.

-     Manage  with  participation  throughout  the  organization in defining and
achieving  objectives.  For  example,  the  Fund  looks for companies that offer
employee  stock  ownership  or  profit-sharing  plans.

-     Negotiate  fairly with their workers, provide an environment supportive of
their wellness, do not discriminate on the basis of race, gender, religion, age,
disability,  ethnic  origin,  or sexual orientation, do not consistently violate
regulations  of  the  EEOC,  and  provide opportunities for women, disadvantaged
minorities, and others for whom equal opportunities have often been denied.  For
example,  the  Fund considers both unionized and non-union firms with good labor
relations.

-     Foster  awareness  of  a  commitment  to  human goals, such as creativity,
productivity,  self-respect  and responsibility, within the organization and the
world,  and  continually  recreates  a  context  within which these goals can be
realized.  For  example,  the  Fund  looks  for  companies with an above average
commitment  to  community  affairs  and  charitable  giving.

The  Fund  will  not  invest  in  companies  that  the  Advisor determines to be
significantly  engaged  in:

-     Business  activities  in  support  of  repressive  regimes
-     Production,  or  the  manufacture  of equipment, to produce nuclear energy
-     Manufacture  of  weapon  systems
-     Manufacture  of  alcoholic  beverages  or  tobacco  products
-     Operation  of  gambling  casinos
-     A  pattern  and  practice of violating the rights of indigenous people. We
urge  companies  to  end  negative  stereotypes  of  Native  Americans and other
indigenous  peoples.  For  example,  the Fund objects to the unauthorized use of
names and images that portray Native Americans in a negative light, and supports
the  promotion  of  positive  portrayals  of  all individuals and ethnic groups.

<PAGE>
With  respect  to U.S. government securities, the Fund invests primarily in debt
obligations  issued  or  guaranteed by agencies or instrumentalities of the U.S.
Government  whose  purposes  further  or  are  compatible with the Fund's social
criteria,  such as obligations of the Student Loan Marketing Association, rather
than  general  obligations  of the U.S. Government, such as Treasury securities.

Shareholder  Advocacy  and  Social  Responsibility
As  the  Fund's  advisor,  Calvert  takes  a  proactive  role to make a tangible
positive  contribution to our society and that of future generations. We seek to
positively  influence  corporate  behavior  through  our role as shareholders by
pushing  companies  toward  higher  standards  of  social  and  environmental
responsibility.  Our  activities  may  include  but  are  not  limited  to:

Dialogue  with  companies
We  regularly  initiate  dialogue with management as part of our social research
process.  After  the  Fund becomes a shareholder, we often continue our dialogue
with management through phone calls, letters and in-person meetings. Through our
interaction,  we learn about management's successes and challenges and press for
improvement  on  issues  of  concern.

Proxy  voting
As  a  shareholder in our various portfolio companies, the Fund is guaranteed an
opportunity each year to express its views on issues of corporate governance and
social  responsibility  at  annual  stockholder  meetings.  We  take  our voting
responsibility  seriously and vote all proxies consistent with the financial and
social  objectives  of  our  Fund.

Shareholder  resolutions
Calvert  proposes resolutions on a variety of social issues. We file shareholder
resolutions  when  our dialogue with corporate management proves unsuccessful to
encourage  a  company  to  take  action.  In most cases, our efforts have led to
negotiated  settlements  with  positive  results  for shareholders and companies
alike. For example, one of our shareholder resolutions resulted in the company's
first-ever  disclosure  of its equal employment policies, programs and workforce
demographics.


About  Calvert


Calvert  Asset  Management  Company,  Inc.(4550  Montgomery Avenue, Suite 1000N,
Bethesda,  MD  20814) ("CAMCO") is the Fund's investment advisor. CAMCO provides
the Funds with investment supervision and management and office space; furnishes
executive and other personnel to the Fund, and pays the salaries and fees of all
Trustees  who are affiliated persons of the Advisor. It has been managing mutual
funds  since  1976.  Calvert  is  the investment advisor for over 25 mutual fund
portfolios,  including  the first and largest family of socially screened funds.
As  of  September  30,  2000,  Calvert  had  over  $6  billion  in  assets under
management.


Subadvisor
Turner  Investment  Partners,  Inc.  (1235 Westlakes Drive, Berwyn, Pennsylvania
19312)  has  managed  the  Portfolio  since  inception.  It  uses  a disciplined
approach  to  investing  in  growth  stocks  based  on the premise that earnings
expectations  drive  stock  prices.

Robert  Turner  is the founder, chairman, and chief investment officer of Turner
Investment  Partners.  He  heads  the  Fund's  portfolio  management  team.  A
Chartered  Financial  Analyst,  he was previously senior investment manager with
Meridian  Investment  Company.

The  Fund  has  obtained  an  exemptive  order  from the Securities and Exchange
Commission to permit the Fund, pursuant to approval by the Board of Trustees, to
enter  into  and  materially amend contracts with the Fund's Subadvisors without
shareholder  approval.  See  "Investment  Advisor and Subadvisor" in the SAI for
further  details.

Advisory  Fees
The  Fund's advisory agreement provides for the Fund to pay CAMCO a fee of 1.25%
of  the  Fund's  average  daily  net  assets.

HOW  TO  OPEN  AN  ACCOUNT

Complete and sign an application for each new account.  Be sure to specify Class
I.  All  purchases  must  be  made  by  bankwire  in  U.S.  dollars.  For  more
information  and  wire  instructions,  call  Calvert  Group  at  800-327-2109.

Minimum  To  Open  an  Account  $1,000,000

IMPORTANT  -  HOW  SHARES  ARE  PRICED
The  price  of  shares  is  based on each Fund's net asset value ("NAV"). NAV is
computed by adding the value of a Fund's holdings plus other assets, subtracting
liabilities,  and  then dividing the result by the number of shares outstanding.
If  a  Fund  has  more  than  one class of shares, the NAV of each class will be
different,  depending  on  the  number  of  shares  outstanding  for each class.


Portfolio  securities  and  other  assets are valued based on market quotations,
except  that securities maturing within 60 days are valued at amortized cost. If
market  quotations  are  not


<PAGE>
readily  available,  securities  are valued by a method that the Fund's Board of
Trustees  believes  accurately  reflects  fair  value.

The NAV is calculated as of the close of each business day, which coincides with
the  closing  of  the  regular  session  of the New York Stock Exchange ("NYSE")
(normally  4  p.m. ET). The Fund is open for business each day the NYSE is open.
Please  note that there are some federal holidays, however, such as Columbus Day
and  Veteran's  Day,  when  the  NYSE is open and the Fund is open but purchases
cannot  be  received  because  the  banks  and  post  offices  are  closed.
WHEN  YOUR  ACCOUNT  WILL  BE  CREDITED
Your  purchase  will be processed at the next NAV calculated after your order is
received  in good order.  The Fund reserves the right to suspend the offering of
shares  for  a  period  of  time  or to reject any specific purchase order.  All
purchases  will be confirmed and credited to your account in full and fractional
shares  (rounded  to  the  nearest  1/1000th  of  a  share).

OTHER  CALVERT  GROUP  FEATURES

For  24  hour  performance  and  account  information
visit  www.calvert.com  or  call  800-368-2745

TELEPHONE  TRANSACTIONS
You  may purchase, redeem, or exchange shares and wire funds by telephone if you
have  pre-authorized  service  instructions and established bank instructions on
your  account,  when opened or at a later date by a signature-guaranteed letter.
You receive telephone privileges automatically when you open your account unless
you  instruct  us  otherwise  in  writing.

While telephone redemption is easy and convenient, this account feature involves
a  risk  of loss from unauthorized or fraudulent transactions. Calvert will take
reasonable  precautions  to  protect  your account from fraud. You should do the
same  by  keeping your account information private and immediately reviewing any
confirmations  or  account  statements that we send to you. Make sure to contact
Calvert  immediately  about  any  transaction  you  believe  to be unauthorized.

We reserve the right to refuse a telephone redemption if the caller is unable to
provide:
-  The  account  number.
-  The  name  and  address  exactly  as  registered  on  the  account.
- The primary Social Security or employer identification number as registered on
the  account.

Please  note  that Calvert will not be responsible for any account losses due to
telephone  fraud,  so  long  as  we  have  taken  reasonable steps to verify the
caller's  identity.  If you wish to remove the telephone redemption feature from
your  account,  please  notify  us  in  writing.

EXCHANGES
Calvert  Group  offers a wide variety of investment options that includes common
stock  funds,  tax-exempt and corporate bond funds, and money market funds (call
your broker or Calvert representative for more information). We make it easy for
you  to  purchase shares in other Calvert funds if your investment goals change.

Complete  and  sign  an  account  application,  taking care to register your new
account  in  the  same  name and taxpayer identification number as your existing
Calvert  account(s).  Exchange  instructions  may  then be given by telephone if
telephone redemptions have been authorized and the shares are not in certificate
form.
Before  you  make  an  exchange,  please  note  the  following:
Each  exchange  represents  the  sale  of shares of one Fund and the purchase of
shares  of  another.  Therefore,  you  could  realize  a  taxable  gain or loss.

Shares  may  only  be  exchanged  for  Class  I  shares of another Calvert Fund.

Bank  Holidays:  On  any  day  Calvert  is open but the Fund's custodian bank is
closed (e.g., Columbus Day and Veteran's Day) exchange requests into or out of a
money  market  fund  will  be  priced  at  the next-determined NAV, but will not
receive  any  dividend  in  the  money market fund until the next day the Fund's
custodian  bank  is  open.


The  Fund  and the distributor reserve the right at any time to reject or cancel
any  part  of  any purchase or exchange order; modify any terms or conditions of
purchase of shares of any Fund; or withdraw all or any part of the offering made
by  this  prospectus.  To  protect  the interests of investors, the Fund and the
distributor may reject any order considered market-timing activity (the purchase
and  sale  of  securities based on short-term price patterns as well as on asset
values).


The  Fund  reserves the right to terminate or modify the exchange privilege with
60  days'  written  notice.

ELECTRONIC  DELIVERY  OF  PROSPECTUSES  AND
SHAREHOLDER  REPORTS
You  may  request  to receive electronic delivery of prospectuses and annual and
semi  annual  reports.

COMBINED  GENERAL  MAILINGS  (Householding)
Multiple  accounts with the same social security number will receive one mailing
per  household  of  information  such as prospectuses and semi-annual and annual
reports. You may request further grouping of accounts to receive fewer mailings.
Separate  statements  will  be  generated  for each separate account and will be
mailed  in  one  envelope  for  each  combination  above.

SPECIAL  SERVICES  AND  CHARGES
The  Fund  pays  for  shareholder services but not for special services that are
required by a few shareholders, such as a request for a historical transcript of
an  account.  You  may  be  required  to  pay  a fee for these special services.


MINIMUM  ACCOUNT  BALANCE
Please  maintain  a balance in each of your Fund accounts of at least $1,000,000
per  Fund.  If  due  to  redemptions,  the


<PAGE>
account  falls  below  the  minimum, your account may be closed and the proceeds
mailed  to  the address of record.  You will be given a notice that your account
is  below  the minimum and will be closed, or moved to Class A (at NAV) after 30
days  if  the  balance  is  not  brought  up  to  the  required  minimum amount.

DIVIDENDS,  CAPITAL  GAINS  AND  TAXES
The  Fund pays dividends from its net investment income annually. Net investment
income  consists  of  interest income, net short-term capital gains, if any, and
dividends  declared  and  on  investments,  less  expenses. Distributions of net
short-term  capital  gains  (treated  as  dividends  for  tax  purposes) and net
long-term  capital  gains,  if  any, are normally paid once a year; however, the
Fund  does not anticipate making any such distributions unless available capital
loss  carryovers  have  been  used  or  have  expired. Dividend and distribution
payments  will  vary  between  classes.

Dividend  payment  options
Dividends and any distributions are automatically reinvested in the same Fund at
NAV,  unless  you  elect to have amounts of $10 or more paid to you by wire to a
predesignated  bank account.  Dividends and distributions from any Calvert Group
Fund  may  be automatically invested in an identically registered account in the
came  share  class  of any other Calvert Group Fund at NAV. If reinvested in the
same  account,  new  shares  will  be purchased at NAV on the reinvestment date,
which  is  generally  1 to 3 days prior to the payment date. You must notify the
Fund  in  writing  to  change  your  payment  options.

Buying  a  Dividend
At the time of purchase, the share price of each class may reflect undistributed
income,  capital  gains  or unrealized appreciation of securities. Any income or
capital  gains  from  these amounts which are later distributed to you are fully
taxable.  On  the  record date for a distribution, share value is reduced by the
amount  of  the  distribution.  If  you  buy  shares just before the record date
("buying  a  dividend")  you  will  pay  the  full price for the shares and then
receive  a  portion  of  the  price  back  as  a  taxable  distribution.

Federal  Taxes
In  January,  the  Fund  will  mail you Form 1099-DIV indicating the federal tax
status  of  dividends  and any capital gain distributions paid to you during the
past  year.  Generally, dividends and distributions are taxable in the year they
are  paid. However, any dividends and distributions paid in January but declared
during  the  prior  three months are taxable in the year declared. Dividends and
distributions are taxable to you regardless of whether they are taken in cash or
reinvested.  Dividends,  including  short-term  capital  gains,  are  taxable as
ordinary  income.  Distributions  from  long-term  capital  gains are taxable as
long-term  capital  gains,  regardless  of  how  long  you  have  owned  shares.

You  may  realize  a capital gain or loss when you sell or exchange shares. This
capital gain or loss will be short- or long-term, depending on how long you have
owned the shares which were sold. In January, the Fund will mail you Form 1099-B
indicating  the  total amount of all sales, including exchanges. You should keep
your  annual  year-end  account  statements to determine the cost (basis) of the
shares  to  report  on  your  tax  returns.

Other  Tax  Information
In addition to federal taxes, you may be subject to state or local taxes on your
investment,  depending  on  the  laws  in your area. You will be notified to the
extent,  if  any,  that  dividends  reflect interest received from US government
securities.  Such  dividends  may  be  exempt  from  certain state income taxes.

Taxpayer  Identification  Number
If we do not have your correct Social Security or Taxpayer Identification Number
("TIN")  and a signed certified application or Form W-9, Federal law requires us
to  withhold  31%  of  your  reportable  dividends,  and possibly 31% of certain
redemptions.  In  addition, you may be subject to a fine by the Internal Revenue
Service.  You  will also be prohibited from opening another account by exchange.
Calvert Group reserves the right to reject any new account or any purchase order
for  failure  to  supply  a  certified  TIN.

HOW  TO  SELL  SHARES
You  may redeem all or a portion of your shares on any day your Fund is open for
business.  Your  shares  will  be redeemed at the next NAV calculated after your
redemption  request is received by the transfer agent in good order (see below).
The  proceeds  will  normally  be  sent  to you on the next business day, but if
making  immediate  payment  could  adversely  affect the Fund, it may take up to
seven  (7)  days  to  make payment. The Funds have the right to redeem shares in
assets  other  than cash for redemption amounts exceeding, in any 90-day period,
$250,000  or  1% of the net asset value of the Fund, whichever is less. When the
NYSE  is  closed  (or  when trading is restricted) for any reason other than its
customary  weekend  or holiday closings, or under any emergency circumstances as
determined  by  the  Securities  and  Exchange  Commission,  redemptions  may be
suspended  or  payment  dates postponed. Please note that there are some federal
holidays, however, such as Columbus Day and Veterans' Day, when the NYSE is open
and  the Fund is open but redemptions cannot be mailed or wired because the post
offices  and  banks  are  closed.

Request  in  "Good  Order"
All  redemption requests must be received by the transfer agent in "good order."
This  means  that  your  request  must  include:

-  The  Fund  name  and  account  number
-  The  amount  of  the  transaction  (in  dollars  or  shares).
-  Signatures  of  all  owners  exactly  as  registered on the account (for mail
requests).
-  Signature  guarantees  (if  required).*
-  Any  supporting  legal  documentation  that  may  be  required.
-  Any  outstanding  certificates  representing  shares  to  be  redeemed.

<PAGE>

*For  instance, a signature guarantee must be provided by all registered account
shareholders when redemption proceeds are sent to a different person or address.
A  signature  guarantee  can be obtained from most commercial and savings banks,
credit  unions,  trust  companies,  or  member  firms  of a U.S. stock exchange.
Please  note:  Notarization  is  not  the  equivalent  of a signature guarantee.


Transactions are processed at the next determined share price after the transfer
agent  has  received  all  required  information.

Follow these suggestions to ensure timely processing of your redemption request:

By  Telephone  -  call  800-368-2745
You  may  redeem shares from your account by telephone and have your money wired
to  an address or bank you have previously authorized.  Class I redemptions must
be  made  by  wire.
If  you  want  the money to be wired to a bank not previously authorized, then a
voided  bank  check  must  be  provided.  To  add  instructions  to  wire  to  a
destination  not  previously  established,  or if you would like funds sent to a
different  address  or another person, your letter must be signature guaranteed.




<PAGE>
To  Open  an  Institutional  (Class  I)  Account:
800-327-2109


Performance  and  Prices:
www.calvert.com


Service  for  Existing  Accounts:
Shareholders  800-327-2109


TDD  for  Hearing-Impaired:
800-541-1524


Calvert  Office:
4550  Montgomery  Avenue
Suite  1000N
Bethesda,  MD  20814


Registered,  Certified  or
Overnight  Mail:
Calvert  Group
c/o  NFDS
330  West  9th  Street
Kansas  City,  MO  64105


Calvert  Group  Web-Site
www.calvert.com


PRINCIPAL  UNDERWRITER
Calvert  Distributors,  Inc.
4550  Montgomery  Avenue
Suite  1000N
Bethesda,  MD  20814


<PAGE>

For  investors who want more information about the Fund, the following documents
will  be  available,  once  filed,  free  upon  request:


Annual/Semi-Annual Reports:  Additional information about the Fund's investments
is  available  in the Fund's Annual and Semi-Annual reports to shareholders.  In
the  Fund's  annual  report, you will find a discussion of the market conditions
and  investment  strategies  that  significantly affected the Fund's performance
during  its  last  fiscal  year.

Statement  of  Additional Information (SAI):  The SAI for the Fund provides more
detailed  information about the Fund and is incorporated into this prospectus by
reference.

You  can  get  free  copies  of  reports and SAIs, request other information and
discuss  your  questions  about  the  Funds  by  contacting  your  financial
professional,  or  the  Fund  at:



Calvert  Group
4550  Montgomery  Ave,  Suite  1000N
Bethesda,  MD  20814

Telephone:  1-800-368-2745

Calvert  Group  Web-Site
www.calvert.com


You  can  review the Fund's reports and SAIs at the Public Reference Room of the
Securities  and  Exchange  Commission.
You  can  get  text-only  copies:



For  a  fee,  by  writing  to  or  calling  the  Public Reference Section of the
Commission,  Washington,  D.C.  20549-0102.  Telephone:  202-942-8090  or  by
electronic  request  at  the  following  E-mail  address:  [email protected].

Free  from  the  Commission's  Internet  website  at
www.sec.gov.

Investment  Company  Act  file:
no.811-  3334









<PAGE>



                         CALVERT SOCIAL INVESTMENT FUND
                             (Technology Portfolio)
                4550 Montgomery Avenue, Bethesda, Maryland 20814
                       Statement of Additional Information
                                October 31, 2000


     New  Account     (800)  368-2748     Shareholder
     Information:     (301)  951-4820        Services:     (800)  368-2745
     Broker     (800)  368-2746                 TDD  for  the  Hearing-
     Services:     (301)  951-4850              Impaired:     (800)  541-1524

     This  Statement  of  Additional  Information  ("SAI")  is not a prospectus.
Investors  should  read  the  Statement of Additional Information in conjunction
with  the  Fund's  Prospectus,  dated  October 31, 2000. may be obtained free of
charge  by  writing  the  Fund  at  the above address or calling the Fund, or by
visiting  our  website  at  www.calvert.com.


                                TABLE OF CONTENTS

     Investment  Policies  and  Risks                             2
     Investment  Restrictions                                     7
     Investment  Selection  Process                               8
     Dividends,  Distributions  and  Taxes                        9
     Net  Asset  Value                                            9
     Purchase  and  Redemption  of  Shares                       10
     Advertising                                                 11
     Trustees,  Officers  and  Advisory  Council                 12
     Investment  Advisor  and  Subadvisor                        15
     Administrative  Services  Agent                             15
     Method  of  Distribution                                    15
     Transfer  and  Shareholder  Servicing  Agents               17
     Portfolio  Transactions                                     17
     Personal  Securities  Transactions                          17
     Independent  Accountants  and  Custodians                   18
     General  Information                                        19
     Appendix                                                    20



<PAGE>

                          INVESTMENT POLICIES AND RISKS
                          -----------------------------

Foreign  Securities
     Investments  in foreign securities may present risks not typically involved
in  domestic  investments.  The  Portfolios  may  purchase  foreign  securities
directly,  on  foreign  markets,  or  those  represented  by American Depositary
Receipts ("ADRs"), or other receipts evidencing ownership of foreign securities,
such  as  International Depository Receipts and Global Depositary Receipts. ADRs
are US dollar-denominated and traded in the US on exchanges or over the counter.
By  investing  in  ADRs  rather  than  directly  in  foreign issuers' stock, the
Portfolios  may  possibly  avoid  some  currency  and  some liquidity risks. The
information  available for ADRs is subject to the more uniform and more exacting
accounting, auditing and financial reporting standards of the domestic market or
exchange  on  which  they  are  traded.
     Additional  costs  may  be  incurred  in  connection  with  international
investment  since  foreign  brokerage  commissions  and  the  custodial  costs
associated  with  maintaining  foreign portfolio securities are generally higher
than  in  the  United  States.  Fee  expense  may  also  be incurred on currency
exchanges  when the Portfolios change investments from one country to another or
convert  foreign  securities  holdings  into  US  dollars.
     United  States  Government  policies  have  at  times, in the past, through
imposition  of  interest  equalization taxes and other restrictions, discouraged
certain  investments  abroad  by  United  States investors. In addition, foreign
countries  may  impose  withholding  and  taxes  on  dividends  and  interest.
     Investing  in  emerging  markets  in  particular,  those  countries  whose
economies  and  capital  markets  are  not  as  developed  as  those  of  more
industrialized  nations,  carries  its own special risks. Among other risks, the
economies  of  such  countries may be affected to a greater extent than in other
countries  by  price  fluctuations  of  a  single  commodity, by severe cyclical
climactic  conditions,  lack  of  significant  history  in  operating  under  a
market-oriented  economy,  or  by  political  instability,  including  risk  of
expropriation.
     Since  investments  in securities of issuers domiciled in foreign countries
usually  involve  currencies  of  the  foreign countries, and since the Fund may
temporarily hold funds in foreign currencies during the completion of investment
programs,  the  value  of  the  assets  of the Fund as measured in United States
dollars  may be affected favorably or unfavorably by changes in foreign currency
exchange  rates  and  exchange control regulations. For example, if the value of
the foreign currency in which a security is denominated increases or declines in
relation  to the value of the US dollar, the value of the security in US dollars
will  increase  or  decline  correspondingly.  The Portfolios will conduct their
foreign  currency  exchange  transactions either on a spot (i.e., cash) basis at
the  spot  rate  prevailing  in the foreign exchange market, or through entering
into forward contracts to purchase or sell foreign currencies. A forward foreign
currency contract involves an obligation to purchase or sell a specific currency
at  a  future  date  which  may be any fixed number of days from the date of the
contract agreed upon by the parties, at a price set at the time of the contract.
These  contracts  are  traded in the interbank market conducted directly between
currency  traders  (usually  large,  commercial  banks)  and  their customers. A
forward  foreign  currency contract generally has no deposit requirement, and no
commissions  are  charged  at  any  stage  for  trades.
     The Fund may enter into forward foreign currency contracts for two reasons.
First, the Portfolios may desire to preserve the United States dollar price of a
security  when  it enters into a contract for the purchase or sale of a security
denominated  in  a  foreign currency. The Fund may be able to protect themselves
against  possible  losses resulting from changes in the relationship between the
United  States  dollar and foreign currencies during the period between the date
the  security  is  purchased  or  sold  and the date on which payment is made or
received  by  entering  into  a forward contract for the purchase or sale, for a
fixed  amount  of dollars, of the amount of the foreign currency involved in the
underlying  security  transactions.
     Second,  when  the  Advisor  or  Subadvisor believes that the currency of a
particular  foreign  country may suffer a substantial decline against the United
States dollar, the Fund enters into a forward foreign currency contract to sell,
for  a fixed amount of dollars, the amount of foreign currency approximating the
value  of  some  or  all  of  the  Funds' securities denominated in such foreign
currency.  The precise matching of the forward foreign currency contract amounts
and  the  value of the Funds' securities involved will not generally be possible
since  the future value of the securities will change as a consequence of market
movements  between the date the forward contract is entered into and the date it
matures. The projection of short-term currency market movement is difficult, and
the  successful  execution  of  this  short-term  hedging strategy is uncertain.
Although  forward  foreign  currency contracts tend to minimize the risk of loss
due to a decline in the value of the hedged currency, at the same time they tend
to limit any potential gain which might result should the value of such currency
increase.  The  Portfolios  do  not  intend to enter into such forward contracts
under  this  circumstance  on  a  regular  or  continuous  basis.


SHORT  SALES
     The  Fund  may  engage  in  short  sales  to gain optimum return on a short
position in a company's stock. A short sale is "against the box" if at all times
during which the short position is open, a Fund owns at least an equal amount of
the  securities  or securities convertible into, or exchangeable without further
consideration  for, securities of the same issue as the securities that are sold
short.

TEMPORARY  DEFENSIVE  POSITIONS
     For  temporary  defensive  purposes  - which may include a lack of adequate
purchase  candidates  or an unfavorable market environment - the Fund may invest
in  cash  or cash equivalents. Cash equivalents include instruments such as, but
not  limited  to, US government and agency obligations, certificates of deposit,
banker's  acceptances, time deposits commercial paper, short-term corporate debt
securities,  and  repurchase  agreements.

REPURCHASE  AGREEMENTS
     The  Fund  may  purchase  debt securities subject to repurchase agreements,
which  are  arrangements  under  which  the Fund buys a security, and the seller
simultaneously  agrees  to repurchase the security at a specified time and price
reflecting  a market rate of interest. The Fund engages in repurchase agreements
in  order to earn a higher rate of return than it could earn simply by investing
in  the  obligation which is the subject of the repurchase agreement. Repurchase
agreements  are  not, however, without risk. In the event of the bankruptcy of a
seller  during the term of a repurchase agreement, a legal question exists as to
whether  the  Fund would be deemed the owner of the underlying security or would
be  deemed  only to have a security interest in and lien upon such security. The
Fund  will  only  engage  in  repurchase  agreements  with recognized securities
dealers  and  banks determined to present minimal credit risk by the Advisor. In
addition, the Fund will only engage in repurchase agreements reasonably designed
to  secure  fully  during  the  term of the agreement the seller's obligation to
repurchase  the  underlying  security  and  will monitor the market value of the
underlying  security  during  the  term  of  the  agreement. If the value of the
underlying  security  declines and is not at least equal to the repurchase price
due  the  Fund  pursuant  to  the agreement, the Fund will require the seller to
pledge additional securities or cash to secure the seller's obligations pursuant
to the agreement. If the seller defaults on its obligation to repurchase and the
value  of  the  underlying  security declines, the Fund may incur a loss and may
incur  expenses  in  selling  the underlying security. Repurchase agreements are
always  for  periods of less than one year. Repurchase agreements not terminable
within  seven  days  are  considered  illiquid.


REVERSE  REPURCHASE  AGREEMENTS
     The  Fund may also engage in reverse repurchase agreements. Under a reverse
repurchase  agreement,  the  Fund  sells  portfolio  securities  to  a  bank  or
securities  dealer  and agrees to repurchase those securities from such party at
an  agreed  upon  date  and price reflecting a market rate of interest. The Fund
invests  the  proceeds  from each reverse repurchase agreement in obligations in
which  it  is  authorized  to  invest.  The Fund intends to enter into a reverse
repurchase  agreement  only  when  the  interest  income  provided  for  in  the
obligation  in  which  the  Fund  invests the proceeds is expected to exceed the
amount  the  Fund  will pay in interest to the other party to the agreement plus
all  costs  associated with the transactions. The Fund does not intend to borrow
for leverage purposes. The Portfolios will only be permitted to pledge assets to
the  extent  necessary  to  secure borrowings and reverse repurchase agreements.
     During  the  time  a  reverse repurchase agreement is outstanding, the Fund
will maintain in a segregated custodial account an amount of cash, US Government
securities  or  other liquid, high-quality debt securities equal in value to the
repurchase  price.  The Fund will mark to market the value of assets held in the
segregated account, and will place additional assets in the account whenever the
total  value  of  the  account  falls below the amount required under applicable
regulations.
     The  Fund's use of reverse repurchase agreements involves the risk that the
other  party to the agreements could become subject to bankruptcy or liquidation
proceedings during the period the agreements are outstanding. In such event, the
Fund  may  not  be  able  to repurchase the securities it has sold to that other
party.  Under  those  circumstances,  if at the expiration of the agreement such
securities are of greater value than the proceeds obtained by the Fund under the
agreements,  the  Fund  may  have  been  better  off had it not entered into the
agreement.  However, the Fund will enter into reverse repurchase agreements only
with  banks  and dealers which the Advisor believes present minimal credit risks
under  guidelines adopted by the Fund's Board of Trustees. In addition, the Fund
bears the risk that the market value of the securities it sold may decline below
the  agreed-upon repurchase price, in which case the dealer may request the Fund
to  post  additional  collateral.


HIGH  SOCIAL  IMPACT  INVESTMENTS

     The  Fund  will  not purchase debt securities other than High Social Impact
Investments  (or  money  market instruments). The High Social Impact Investments
program targets a percentage of the Fund's assets to directly support the growth
of  community-based  organizations  for  the  purposes  of  promoting  business
creation,  housing  development and economic and social development of urban and
rural  communities.  These  securities are unrated - they are expected to be the
equivalent of non-investment grade debt securities - that is, lower quality debt
securities  (generally those rated BB or lower by S&P or Ba or lower by Moody's,
known  as  "junk  bonds").  These securities have moderate to poor protection of
principal  and  interest  payments  and  have  speculative  characteristics. See
Appendix  for  a  description  of the ratings.) The annual return on High Social
Impact  Investments  is  between  0%  and 4%. Thus, rather than earning a higher
rate,  as  would  be  expected,  to  compensate for higher the risk (i.e., lower
credit  quality),  they  earn  a  rate  of  return  that  is lower than the rate
currently earned by high quality U.S. Treasury securities. There is no secondary
market  for  these  securities

     The  Fund  expects to purchase all of its High Social Impact Investments in
notes  issued  by  the  Calvert  Social  Investment  Foundation,  a  non-profit
organization, legally distinct from Calvert Group, organized as a charitable and
educational  foundation  for  the  purpose  of  increasing  public awareness and
knowledge  of  the  concept  of  socially responsible investing.  The Foundation
prepares  its own careful credit analysis to attempt to identify those community
development  issuers  whose  financial  condition  is  adequate  to  meet future
obligations  or  is  expected  to  be  adequate in the future. Through portfolio
diversification  and  credit  analysis, investment risk can be reduced, although
there can be no assurance that losses will not occur. The Foundation maintains a
certain  required level of capital upon which the Fund could rely if a note were
ever  to  default.

NON-INVESTMENT  GRADE  DEBT  SECURITIES
     Non-investment  grade  debt  securities  are  lower quality debt securities
(generally  those  rated  BB or lower by S&P or Ba or lower by Moody's, known as
"junk bonds." These securities have moderate to poor protection of principal and
interest  payments  and  have  speculative  characteristics.  See Appendix for a
description of the ratings.) These securities involve greater risk of default or
price  declines  due  to  changes  in  the  issuer's  creditworthiness  than
investment-grade  debt securities. Because the market for lower-rated securities
may  be  thinner  and less active than for higher-rated securities, there may be
market price volatility for these securities and limited liquidity in the resale
market.  Market prices for these securities may decline significantly in periods
of general economic difficulty or rising interest rates. Unrated debt securities
may  fall  into  the  lower quality category. Unrated securities usually are not
attractive  to  as many buyers as rated securities are, which may make them less
marketable.
     The  quality  limitation  set  forth  in  the  Fund's  investment policy is
determined  immediately  after  the  Fund's  acquisition  of  a  given security.
Accordingly, any later change in ratings will not be considered when determining
whether  an  investment  complies  with  the  Fund's  investment  policy.
     When purchasing non-investment grade debt securities, rated or unrated, the
Advisors  prepare their own careful credit analysis to attempt to identify those
issuers  whose  financial condition is adequate to meet future obligations or is
expected  to  be  adequate  in the future. Through portfolio diversification and
credit  analysis,  investment  risk  can  be  reduced,  although there can be no
assurance  that  losses  will  not  occur.

DERIVATIVES
     The Fund can use various techniques to increase or decrease its exposure to
changing  security prices, interest rates, or other factors that affect security
values.  These techniques may involve derivative transactions such as buying and
selling  options  and  futures contracts and leveraged notes, entering into swap
agreements,  and purchasing indexed securities. The Fund can use these practices
either  as  substitution or as protection against an adverse move in the Fund to
adjust  the  risk  and return characteristics of the Fund. If the Advisor and/or
Subadvisor  judges market conditions incorrectly or employs a strategy that does
not  correlate  well  with  a  Fund's investments, or if the counterparty to the
transaction  does  not  perform  as promised, these techniques could result in a
loss.  These  techniques may increase the volatility of a Fund and may involve a
small  investment  of  cash  relative  to  the  magnitude  of  the risk assumed.
Derivatives  are  often  illiquid.

OPTIONS  AND  FUTURES  CONTRACTS
     The  Funds  may,  in  pursuit  of  their  respective investment objectives,
purchase  put and call options and engage in the writing of covered call options
and secured put options on securities which meet the Fund's social criteria, and
employ a variety of other investment techniques. Specifically, the Fund may also
engage  in  the  purchase  and  sale  of  stock  index future contracts, foreign
currency futures contracts, interest rate futures contracts, and options on such
futures,  as  described  more  fully  below.
     The  Fund  may  engage  in  such  transactions  only  to hedge the existing
positions  in  the respective Portfolios (or for Managed Index, for liquidity or
to  hedge  cash  exposure).  They  will  not engage in such transactions for the
purposes of speculation or leverage. Such investment policies and techniques may
involve  a  greater  degree  of  risk  than  those inherent in more conservative
investment  approaches.
     The  Fund  may  write "covered options" on securities in standard contracts
traded  on  national  securities  exchanges.  The Fund may write such options in
order  to  receive  the  premiums from options that expire and to seek net gains
from  closing  purchase  transactions  with  respect  to  such  options.


Put  and  Call  Options. The Fund may purchase put and call options, in standard
contracts  traded  on  national  securities  exchanges, on securities of issuers
which  meet the Fund's social criteria. The Fund will purchase such options only
to  hedge  against changes in the value of securities the Fund holds and not for
the purposes of speculation or leverage. By buying a put, the Fund has the right
to  sell  the  security  at  the  exercise price, thus limiting its risk of loss
through a decline in the market value of the security until the put expires. The
amount  of  any  appreciation  in  the  value of the underlying security will be
partially  offset  by  the amount of the premium paid for the put option and any
related  transaction costs. Prior to its expiration, a put option may be sold in
a  closing  sale transaction and any profit or loss from the sale will depend on
whether  the  amount  received is more or less than the premium paid for the put
option  plus  the  related  transaction  costs.
     The  Fund  may purchase call options on securities which they may intend to
purchase  and  which  meet  the Fund's social criteria. Such transactions may be
entered  into in order to limit the risk of a substantial increase in the market
price  of  the  security  which  the  Fund  intends  to  purchase.  Prior to its
expiration,  a call option may be sold in a closing sale transaction. Any profit
or  loss  from such a sale will depend on whether the amount received is more or
less  than  the  premium  paid  for the call option plus the related transaction
costs.


Covered  Options.  The  Fund  may  write only covered options on equity and debt
securities  in  standard contracts traded on national securities exchanges. This
means  that, in the case of call options, so long as a Portfolio is obligated as
the  writer  of a call option, the Fund will own the underlying security subject
to  the option and, in the case of put options, that Portfolio will, through its
custodian,  deposit  and  maintain either cash or securities with a market value
equal  to  or  greater  than  the  exercise  price  of  the  option.
     When  the  Fund  writes a covered call option, the Fund gives the purchaser
the  right  to purchase the security at the call option price at any time during
the  life  of  the  option.  As  the  writer  of the option, the Fund receives a
premium,  less  a commission, and in exchange foregoes the opportunity to profit
from  any increase in the market value of the security exceeding the call option
price.  The  premium  serves  to  mitigate the effect of any depreciation in the
market  value  of  the  security.  Writing covered call options can increase the
income  of the Fund and thus reduce declines in the net asset value per share of
the  Fund  if securities covered by such options decline in value. Exercise of a
call  option  by  the  purchaser  however  will  cause the Fund to forego future
appreciation  of  the  securities  covered  by  the  option.
     When  the  Fund  writes  a covered put option, it will gain a profit in the
amount of the premium, less a commission, so long as the price of the underlying
security  remains  above the exercise price. However, the Fund remains obligated
to purchase the underlying security from the buyer of the put option (usually in
the  event the price of the security falls below the exercise price) at any time
during  the  option  period. If the price of the underlying security falls below
the  exercise price, the Fund may realize a loss in the amount of the difference
between  the exercise price and the sale price of the security, less the premium
received.
     The  Fund  may  purchase  securities which may be covered with call options
solely  on the basis of considerations consistent with the investment objectives
and policies of the Fund.  The Fund's turnover may increase through the exercise
of  a  call option; this will generally occur if the market value of a "covered"
security  increases  and  the  portfolio has not entered into a closing purchase
transaction.
     Risks  Related  to  Options  Transactions.  The  Fund  can  close out their
respective  positions  in  exchange-traded  options  only  on  an exchange which
provides  a  secondary  market  in  such  options.  Although the Fund intends to
acquire  and  write  only  such  exchange-traded  options  for  which  an active
secondary  market appears to exist, there can be no assurance that such a market
will exist for any particular option contract at any particular time. This might
prevent the Fund from closing an options position, which could impair the Funds'
ability  to  hedge  effectively.  The inability to close out a call position may
have an adverse effect on liquidity because the Fund may be required to hold the
securities  underlying  the  option  until  the  option expires or is exercised.


Futures Transactions. The Fund may purchase and sell futures contracts, but only
when,  in  the  judgment of the Advisor, such a position acts as a hedge against
market  changes  which  would  adversely affect the securities held by the Fund.
These  futures  contracts  may  include,  but  are  not limited to, market index
futures  contracts  and  futures  contracts  based on US Government obligations.
     A  futures  contract  is an agreement between two parties to buy and sell a
security on a future date which has the effect of establishing the current price
for  the  security.  Although  futures  contracts  by their terms require actual
delivery  and  acceptance  of securities, in most cases the contracts are closed
out  before  the  settlement  date  without  the making or taking of delivery of
securities. Upon buying or selling a futures contract, the Fund deposits initial
margin  with  its custodian, and thereafter daily payments of maintenance margin
are  made  to  and  from  the  executing  broker. Payments of maintenance margin
reflect  changes  in  the  value  of  the  futures contract, with the Fund being
obligated  to  make  such payments if its futures position becomes less valuable
and  entitled  to  receive  such payments if its positions become more valuable.
     The  Fund  may  only  invest in futures contracts to hedge their respective
existing  investment  positions  and  not for income enhancement, speculation or
leverage purposes. Although some of the securities underlying a futures contract
may  not  necessarily  meet  the Fund's social criteria, any such hedge position
taken  by Fund will not constitute a direct ownership interest in the underlying
securities.
     Futures  contracts  are  designed  by  boards of trade which are designated
"contracts  markets"  by  the  Commodity Futures Trading Commission ("CFTC"). As
series  of  a  registered investment company, the Fund is eligible for exclusion
from  the  CFTC's definition of "commodity pool operator," meaning that the Fund
may  invest  in futures contracts under specified conditions without registering
with  the CFTC. Futures contracts trade on contracts markets in a manner that is
similar  to  the way a stock trades on a stock exchange and the boards of trade,
through  their  clearing  corporations,  guarantee performance of the contracts.


Options  on  Futures  Contracts.  The  Fund  may  purchase and write put or call
options  and  sell  call  options  on  futures contracts in which the Fund could
otherwise  invest  and  which are traded on a US exchange or board of trade. The
Fund  may  also  enter into closing transactions with respect to such options to
terminate  an existing position; that is, to sell a put option already owned and
to  buy  a  call  option  to  close a position where the Fund has already sold a
corresponding  call  option.
     The  Fund  may  only  invest in options on futures contracts to hedge their
respective  existing  investment  positions  and  not  for  income  enhancement,
speculation or leverage purposes. Although some of the securities underlying the
futures  contract  underlying  the  option  may  not necessarily meet the Fund's
social criteria, any such hedge position taken by the Fund will not constitute a
direct  ownership  interest  in  the  underlying  securities.
     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-a long position
if  the  option  is  a  call  and  a  short position if the option is a put-at a
specified  exercise  price at any time during the period of the option. The Fund
will  pay  a premium for such options purchased or sold. In connection with such
options  bought  or sold, the Fund will make initial margin deposits and make or
receive maintenance margin payments which reflect changes in the market value of
such  options. This arrangement is similar to the margin arrangements applicable
to  futures  contracts  described  above.


Put  Options  on  Futures  Contracts.  The  purchase  of  put options on futures
contracts  is  analogous to the sale of futures contracts and is used to protect
the  portfolios  against the risk of declining prices. The Fund may purchase put
options and sell put options on futures contracts that are already owned by that
Portfolio. The Fund will only engage in the purchase of put options and the sale
of  covered  put  options  on  market  index  futures  for  hedging  purposes.


Call Options on Futures Contracts. The sale of call options on futures contracts
is  analogous  to  the sale of futures contracts and is used to protect the Fund
against  the  risk  of declining prices. The purchase of call options on futures
contracts  is analogous to the purchase of a futures contract. The Fund may only
buy call options to close an existing position where the Fund has already sold a
corresponding call option, or for a cash hedge. The Fund will only engage in the
sale  of  call  options  and  the  purchase of call options to cover for hedging
purposes.


Writing  Call  Options  on  Futures  Contracts.  The  writing of call options on
futures  contracts  constitutes  a partial hedge against declining prices of the
securities  deliverable  upon  exercise  of the futures contract. If the futures
contract  price  at expiration is below the exercise price, the Fund will retain
the full amount of the option premium which provides a partial hedge against any
decline  that  may  have  occurred  in  the  Fund's  securities  holdings.


Risks  of  Options  and Futures Contracts. If the Fund has sold futures or takes
options  positions  to hedge its portfolio against decline in the market and the
market  later  advances,  the Fund may suffer a loss on the futures contracts or
options which it would not have experienced if it had not hedged. Correlation is
also  imperfect  between  movements  in  the  prices  of  futures  contracts and
movements  in  prices of the securities which are the subject of the hedge. Thus
the  price of the futures contract or option may move more than or less than the
price  of  the securities being hedged. Where the Fund has sold futures or taken
options positions to hedge against decline in the market, the market may advance
and  the  value  of the securities held in the Fund may decline. If this were to
occur,  the  Fund  might lose money on the futures contracts or options and also
experience  a  decline  in  the  value  of  its  securities.
     The  Fund  can  close out futures positions only on an exchange or board of
trade  which  provides  a  secondary  market  in such futures. Although the Fund
intends  to  purchase  or  sell  only such futures for which an active secondary
market appears to exist, there can be no assurance that such a market will exist
for  any  particular futures contract at any particular time. This might prevent
the Fund from closing a futures position, which could require Fund to make daily
cash  payments  with  respect  to  its  position  in  the event of adverse price
movements.
     Options  on  futures  transactions  bear  several  risks  apart  from those
inherent  in  options  transactions  generally.  The Funds' ability to close out
their  options positions in futures contracts will depend upon whether an active
secondary  market  for such options develops and is in existence at the time the
Fund  seeks  to  close  their  positions.  There can be no assurance that such a
market  will develop or exist. Therefore, the Fund might be required to exercise
the  options  to  realize  any  profit.

LENDING  PORTFOLIO  SECURITIES
     The  Portfolios  may  lend  its  securities to member firms of the New York
Stock  Exchange and commercial banks with assets of one billion dollars or more.
Any  such  loans  must  be  secured  continuously  in  the  form of cash or cash
equivalents  such  as  US Treasury bills. The amount of the collateral must on a
current basis equal or exceed the market value of the loaned securities, and the
Portfolios  must  be  able  to terminate such loans upon notice at any time. The
Portfolios  will exercise their right to terminate a securities loan in order to
preserve their right to vote upon matters of importance affecting holders of the
securities.
The  advantage  of  such  loans  is  that the Portfolios continue to receive the
equivalent of the interest earned or dividends paid by the issuers on the loaned
securities  while  at  the  same time earning interest on the cash or equivalent
collateral  which  may be invested in accordance with the Portfolios' investment
objective,  policies  and  restrictions.
     Securities  loans  are  usually  made to broker-dealers and other financial
institutions  to  facilitate  their  delivery  of  such  securities. As with any
extension  of  credit, there may be risks of delay in recovery and possibly loss
of  rights in the loaned securities should the borrower of the loaned securities
fail  financially.  However,  the Portfolios will make loans of their securities
only  to  those  firms  the Advisor or Subadvisor deems creditworthy and only on
terms  the  Advisor  believes should compensate for such risk. On termination of
the  loan,  the borrower is obligated to return the securities to the Portfolio.
The  Portfolio  will  recognize  any  gain  or  loss  in the market value of the
securities  during  the  loan period. The Portfolio may pay reasonable custodial
fees  in  connection  with  the  loan.

                             INVESTMENT RESTRICTIONS
                             -----------------------

FUNDAMENTAL  INVESTMENT  RESTRICTIONS
     The  Fund  has  adopted  the following fundamental investment restrictions.
These  restrictions  cannot  be changed without the approval of the holders of a
majority  of  the  outstanding  shares  of  the  Fund.

(1) The Fund may not make any investment inconsistent with its classification as
a  nondiversified  investment  company  under  the  1940  Act.
(2)  The  Fund  may  concentrate  its  investments  in the securities of issuers
primarily  engaged  in  industries  within  the technology sector and securities
issued  or  guaranteed by the US Government or its agencies or instrumentalities
and  repurchase  agreements  secured  thereby.
(3)The  Fund  may not issue senior securities or borrow money, except from banks
for  temporary or emergency purposes and then only in an amount up to 33 1/3% of
the  value  of  a  Portfolio's total assets or as permitted by law and except by
engaging in reverse repurchase agreements, where allowed. In order to secure any
permitted  borrowings  and reverse repurchase agreements under this section, the
Fund  may  pledge,  mortgage  or  hypothecate  its  assets.
(4)  The  Fund  may  not  underwrite  the securities of other issuers, except as
allowed  by  law or to the extent that the purchase of obligations in accordance
with  a  Portfolio's investment objective and policies, either directly from the
issuer,  or  from  an  underwriter for an issuer, may be deemed an underwriting.
(5)  The  Fund may not invest directly in commodities or real estate, although a
Portfolio  may  invest  in  securities  which are secured by real estate or real
estate  mortgages and securities of issuers which invest or deal in commodities,
commodity  futures,  real  estate  or  real  estate  mortgages.
(6) The Fund may not make loans, other than through the purchase of money market
instruments and repurchase agreements or by the purchase of bonds, debentures or
other  debt securities, or as permitted by law. The purchase of all or a portion
of  an issue of publicly or privately distributed debt obligations in accordance
with  a  the  Fund's  investment objective, policies and restrictions, shall not
constitute  the  making  of  a  loan.

NONFUNDAMENTAL  INVESTMENT  RESTRICTIONS
     The  Board  of Trustees has adopted the following nonfundamental investment
restrictions.  A  nonfundamental  investment  restriction  can be changed by the
Board  at  any  time  without  a  shareholder  vote.

The  Fund  May  Not:
(1)  Purchase the obligations of foreign issuers or ADRs if more than 45% of the
value  of  the  Portfolio's  net  assets  would  be invested in such securities.
(2)  Purchase  illiquid  securities  if  more  than  15%  of  the  value  of the
Portfolio's  net  assets  would  be  invested  in  such  securities.
(3)  Enter  into  a  futures  contract or an option on a futures contract if the
aggregate  initial  margins  and  premiums required to establish these positions
would  exceed  5%  of  the  Portfolio's  net  assets.
(4) Purchase a put or call option on a security (including a straddle or spread)
if  the  value  of that option premium, when aggregated with the premiums on all
other  options  securities  held  by  the  Portfolio,  would  exceed  5%  of the
Portfolio's  total  assets.
(5)  Enter  into  reverse  repurchase  agreements if the aggregate proceeds from
outstanding  reverse  repurchase  agreements,  when  added  to other outstanding
borrowings  permitted  by  the 1940 Act, would exceed 33 1/3% of the Portfolio's
total  assets. The Portfolio does not intend to make any purchases of securities
if  borrowing  exceeds  5%  of  its  total  assets.

     Any investment restriction that involves a maximum percentage of securities
or  assets  shall  not  be  considered  to be violated unless an excess over the
applicable  percentage  occurs immediately after an acquisition of securities or
utilization  of  assets  and  results  therefrom.

                          investment selection process
                          ----------------------------

     Investments  in  the  Fund  are  selected  on the basis of their ability to
contribute  to  the  dual  objective  of the Fund, (i.e., those that satisfy the
Fund's  investment  and  social  criteria).  The  Fund has developed a number of
techniques for evaluating the performance of issuers in each of these areas. The
primary  sources of information are reports published by the issuers themselves,
the  reports  of  public  agencies,  and  the  reports  of  groups which monitor
performance  in  particular  areas.  These  sources of information are sometimes
augmented  with  direct  interviews  or  written questionnaires addressed to the
issuers. It should be recognized, however, that there are few generally accepted
measures  by  which  achievement  in  these  areas can be readily distinguished;
therefore,  the development of suitable measurement techniques is largely within
the  discretion  and  judgment  of  the  Advisors  of  the  Fund.
     Candidates  for  inclusion  in  any  particular  class  of  assets are then
examined  according  to  the  social criteria. Issuers are classified into three
categories  of  suitability under the social criteria. In the first category are
those  issuers,  which  exhibit  unusual positive accomplishment with respect to
some  of  the criteria and do not fail to meet minimum standards with respect to
the  remaining  criteria. To the greatest extent possible, investment selections
are  made  from this group. In the second category are those issuers, which meet
minimum  standards  with  respect  to  all  the  criteria  but  do  not  exhibit
outstanding accomplishment with respect to any criterion. This category includes
issuers  which  may  lack an affirmative record of accomplishment in these areas
but  which  are not known by Advisors to violate any of the social criteria. The
third  category  under  the  social  criteria consists of issuers who flagrantly
violate,  or have violated, one or more of those values, for example, a company,
which  repeatedly engages in unfair labor practices. The Fund will not knowingly
purchase  the  securities  of  issuers  in  this  third  category.
     It  should  be  noted  that  the  Fund's  social criteria tend to limit the
availability  of  investment  opportunities  more  than  is customary with other
investment companies. The Advisors of the Fund, however, believe that within the
first  and  second  categories  there are sufficient investment opportunities to
permit full investment among issuers, which satisfy the Fund's social investment
objective.
     To  the  greatest  extent  possible,  the  Advisors  apply  the same social
criteria  to  the  purchase  of  non-equity  securities  as it applies to equity
investments.  With  respect to government securities, the Money Market Portfolio
invests  primarily  in  debt  obligations  issued  or  guaranteed by agencies or
instrumentalities  of  the  Federal  Government  whose  purposes  further or are
compatible  with the Fund's social criteria, such as obligations of the Bank for
Cooperatives  and  the  Student  Loan Marketing Association, rather than general
obligations  of  the  Federal  Government,  such  as  Treasury  securities. Bank
certificates  of deposit, commercial paper, repurchase agreements, and corporate
bonds  are  judged  in  the  same way as a prospective purchase of the bank's or
issuing  company's  common  stock.

                       DIVIDENDS, DISTRIBUTIONS AND TAXES
                       ----------------------------------

     The  Fund  intends to continue to qualify as regulated investment companies
under  Subchapter  M  of  the  Internal Revenue Code. If for any reason the Fund
should  fail  to  qualify, it would be taxed as a corporation at the Fund level,
rather  than  passing  through  its  income  and  gains  to  shareholders.
     Distributions of realized net capital gains, if any, are normally paid once
a  year; however, the Fund does not intend to make any such distributions unless
available  capital  loss  carryovers,  if  any,  have been used or have expired.
Capital  loss  carryforwards  as  of  September  30,  1999, for the Money Market
Portfolio  was  $6,959, Balanced Portfolio was $0, Bond Portfolio was $0, Equity
Portfolio  was  $0,  and  Managed  Index  Portfolio  was  $492,447.
     Generally, dividends (including short-term capital gains) and distributions
are taxable to the shareholder in the year they are paid. However, any dividends
and distributions paid in January but declared during the prior three months are
taxable  in  the  year  declared.
     The  Fund  is  required  to  withhold  31%  of any reportable dividends and
long-term  capital gain distributions paid and 31% of each reportable redemption
transaction  if:  (a) the shareholder's social security number or other taxpayer
identification  number  ("TIN") is not provided or an obviously incorrect TIN is
provided;  (b)  the shareholder does not certify under penalties of perjury that
the  TIN  provided  is the shareholder's correct TIN and that the shareholder is
not  subject  to  backup withholding under section 3406(a)(1)(C) of the Internal
Revenue  Code  because  of  underreporting  (however,  failure  to  provide
certification as to the application of section 3406(a)(1)(C) will result only in
backup  withholding  on  dividends,  not  on  redemptions);  or  (c) the Fund is
notified  by  the  Internal  Revenue  Service  that  the  TIN  provided  by  the
shareholder  is  incorrect  or that there has been underreporting of interest or
dividends  by  the shareholder. Affected shareholders will receive statements at
least  annually  specifying  the  amount  withheld.
     In addition, the Fund is required to report to the Internal Revenue Service
the  following information with respect to each redemption transaction occurring
in  the  Fund  (not applicable to Money Market Portfolio): (a) the shareholder's
name,  address, account number and taxpayer identification number; (b) the total
dollar  value  of  the redemptions; and (c) the Fund's identifying CUSIP number.
     Certain  shareholders  are, however, exempt from the backup withholding and
broker  reporting  requirements.  Exempt  shareholders  include:  corporations;
financial  institutions;  tax-exempt organizations; individual retirement plans;
the  US,  a  State,  the  District  of  Columbia,  a  US  possession,  a foreign
government,  an international organization, or any political subdivision, agency
or  instrumentality  of  any  of  the  foregoing;  US  registered commodities or
securities  dealers;  real  estate  investment  trusts;  registered  investment
companies;  bank  common trust funds; certain charitable trusts; foreign central
banks  of  issue.  Non-resident aliens, certain foreign partnerships and foreign
corporations  are generally not subject to either requirement but may instead be
subject to withholding under sections 1441 or 1442 of the Internal Revenue Code.
Shareholders  claiming  exemption  from  backup withholding and broker reporting
should  call  or  write  the  Fund  for  further  information.
     Many states do not tax the portion of the Fund's dividends which is derived
from  interest  on  US  Government  obligations.  State  law varies considerably
concerning  the  tax status of dividends derived from US Government obligations.
Accordingly, shareholders should consult their tax advisors about the tax status
of  dividends and distributions from the Fund in their respective jurisdictions.
     Dividends  paid  by  the  Fund  may  be eligible for the dividends received
deduction  available  to corporate taxpayers. Corporate taxpayers requiring this
information  may  contact  Calvert.

                                 net asset value
                                 ---------------

     The  public  offering price of the shares of the Fund is the respective net
asset  value  per share (plus, for Class A shares, the applicable sales charge).
The net asset value per share of the Fund is determined every business day as of
the  close  of the regular session of the New York Stock Exchange (normally 4:00
p.m.  Eastern  time) and at such other times as may be necessary or appropriate.
The  Fund  does  not  determine  net asset value on certain national holidays or
other  days  on  which  the  New  York Stock Exchange is closed: New Year's Day,
Martin Luther King Day, Presidents' Day, Good Friday, Memorial Day, Independence
Day,  Labor Day, Thanksgiving Day, and Christmas Day. The Fund's net asset value
per  share  is  determined  by  dividing  the total net assets (the value of its
assets net of liabilities, including accrued expenses and fees) by the number of
shares  outstanding  for  each  class.
     The  assets  of  the  Fund  are valued as follows: (a) securities for which
market  quotations  are  readily available are valued at the most recent closing
price,  mean  between  bid and asked price, or yield equivalent as obtained from
one or more market makers for such securities; (b) securities maturing within 60
days  may  be  valued  at cost, plus or minus any amortized discount or premium,
unless  the Board of Trustees determines such method not to be appropriate under
the  circumstances;  and  (c)  all  other securities and assets for which market
quotations  are  not  readily  available will be fairly valued by the Advisor in
good  faith  under  the  supervision  of  the  Board  of  Trustees.

Total  Return  and  Other  Quotations
     The  Fund  may  advertise  "total  return."  Total  return  is  calculated
separately for each class. Total return differs from yield in that yield figures
measure  only the income component of a the Fund investments, while total return
includes  not  only  the  effect  of income dividends but also any change in net
asset  value,  or  principal  amount,  during the stated period. Total return is
computed by taking the total number of shares purchased by a hypothetical $1,000
investment  after  deducting  any applicable sales charge, adding all additional
shares  purchased within the period with reinvested dividends and distributions,
calculating the value of those shares at the end of the period, and dividing the
result  by the initial $1,000 investment. For periods of more than one year, the
cumulative  total  return  is  then  adjusted  for  the  number of years, taking
compounding  into  account, to calculate average annual total return during that
period.
     Total  return  is  computed  according  to  the  following  formula:

                                 P(1 + T)n = ERV

where P = a hypothetical initial payment of $1,000; T = total return; n = number
of years; and ERV = the ending redeemable value of a hypothetical $1,000 payment
made  at  the  beginning  of  the  period.
     Total return is historical in nature and is not intended to indicate future
performance.  All  total  return  quotations  reflect  the  deduction  of  the
Portfolio's  maximum  sales charge, except quotations of "return without maximum
load"  (or  "without  CDSC"  or  "at NAV") which do not deduct sales charge, and
"actual  return,"  which  reflect  deduction  of the sales charge only for those
periods  when  a sales charge was actually imposed. Return without maximum load,
which  will be higher than total return, should be considered only by investors,
such as participants in certain pension plans, to whom the sales charge does not
apply,  or for purposes of comparison only with comparable figures which also do
not  reflect sales charges, such as Lipper averages.  Class I shares do not have
a  sales  charge.

                        purchase and redemption of shares
                        ---------------------------------

     Share  certificates  will  not be issued unless requested in writing by the
investor.     Share  certificates will not be issued unless requested in written
by  the  investor.  If share certificates have been issued, then the certificate
must be delivered to the Fund's transfer agent with any redemption request. This
could  result in delays. If the certificate have been lost, the shareholder will
have  to  pay  to  post  an indemnity bond in case the original certificates are
later presented by another person. No certificates will be issued for fractional
shares.
     The  Fund  has  filed  a  notice  of  election  under  Rule  18f-1 with the
Commission.  The  notice stated that the Fund may honor redemptions that, during
any  90-day  period, exceed $250,000 or 1% of the nest assets value of the Fund,
whichever  is less, by redemptions-in-kind (distributions of a pro rata share of
the  portfolio  securities,  rather  than  cash).
     Fund  shares  shall  be distributed through the distributor and third party
brokers.  See  the  prospectus  for  more  details on purchased and redemptions.

                                   advertising
                                   -----------

     The Fund or its affiliates may provide information such as, but not limited
to,  the  economy,  investment  climate,  investment  principles,  sociological
conditions and political ambiance. Discussion may include hypothetical scenarios
or lists of relevant factors designed to aid the investor in determining whether
the  Fund  is  compatible with the investor's goals. The Fund may list portfolio
holdings  or  give  examples  or  securities  that  may have been considered for
inclusion  in  the  Portfolio,  whether  held  or  not.
     The  Fund  or  its  affiliates  may supply comparative performance data and
rankings  from  independent  sources  such as Donoghue's Money Fund Report, Bank
Rate  Monitor,  Money,  Forbes, Lipper Analytical Services, Inc., CDA Investment
Technologies,  Inc.,  Wiesenberger  Investment  Companies  Service,  Russell
2000/Small  Stock  Index,  Mutual  Fund  Values Morningstar Ratings, Mutual Fund
Forecaster,  Barron's,  The  Wall  Street  Journal,  and  Schabacker  Investment
Management,  Inc.  Such averages generally do not reflect any front- or back-end
sales  charges  that may be charged by Funds in that grouping. The Fund may also
cite  to any source, whether in print or on-line, such as Bloomberg, in order to
acknowledge  origin of information. The Fund may compare itself or its portfolio
holdings  to  other  investments,  whether  or  not  issued  or regulated by the
securities  industry, including, but not limited to, certificates of deposit and
Treasury  notes.
     Calvert Group is the nation's leading family of socially responsible mutual
funds,  both  in  terms  of  socially  responsible  mutual  fund  assets  under
management,  and  number  of socially responsible mutual fund portfolios offered
(source: Social Investment Forum, December 31, 1999). Calvert Group was also the
first  to  offer  a  family  of  socially  responsible  mutual  fund portfolios.


                             DIRECTORS AND OFFICERS
                             ----------------------

     The  Fund's Board of Directors supervises the Fund's activities and reviews
its contracts with companies that provide it with services. Business information
is  provided  below  about  the  Fund's  Directors  and  Officers.


                                                      PRINCIPAL
                                                      OCCUPATION(S)  DURING
NAME, ADDRESS & DATE OF BIRTH   POSITION WITH FUND    LAST 5 YEARS

REBECCA ADAMSON,                DIRECTOR               PRESIDENT OF THE NATIONAL
11917 MAIN STREET, FREDERICKSBURG                      NON-PROFIT, FIRST NATIONS
VA 22408  DOB: 09/10/47                                      FINANCIAL  PROJECT.

RICHARD L. BAIRD, JR.           DIRECTOR                  VICE PRESIDENT FOR THE
211 OVERLOOK DRIVE, PITTSBURGH                            FAMILY HEALTH COUNCIL,
PENNSYLVANIA 15215  DOB:05/09/48                             INC. IN PITTSBURGH,
                                                      PENNSYLVANIA, A NON-PROFIT
                                                                     CORPORATION

*JOHN J. GUFFEY, JR.            DIRECTOR             EXECUTIVE VICE PRESIDENT OF
388 CALLE COLINA SANTA FE, NM                 SOCIAL INVESTMENT FUND. ORGANIZING
87501  DOB: 05/15/48                           DIRECTOR OF THE COMMUNITY CAPITAL
                                               BANK IN BROOKLYN, NEW YORK, AND A
                                                 FINANCIAL CONSULTANT TO VARIOUS
                                                                   ORGANIZATIONS

JOY V. JONES, ESQ.,             DIRECTOR              ATTORNEY AND ENTERTAINMENT
175 WEST 12TH STREET, NEW YORK,                        MANAGER IN NEW YORK CITY.
NEW YORK 10011  DOB: 07/02/50

*BARBARA J. KRUMSIEK,           DIRECTOR              PRESIDENT, CHIEF EXECUTIVE
DOB: 08/09/52                                          OFFICER AND VICE CHAIRMAN
                                                    OF CALVERT GROUP, LTD. PRIOR
                                                       TO JOINING CALVERT GROUP,
                                                        MS. KRUMSIEK SERVED AS A
                                                   MANAGING DIRECTOR OF ALLIANCE
                                                          FUND DISTRIBUTORS,INC.

TERRENCE J. MOLLNER, Ed.D       DIRECTOR               FOUNDER, CHAIRPERSON, AND
15 EDWARDS SQUARE, NORTHAMPTON,              PRESIDENT OF TRUSTEESHIP INSTITUTE,
MASSACHUSETTS 01060  DOB: 12/13/44              INC., A DIVERSE FOUNDATION KNOWN
                                             PRINCIPALLY FOR ITS CONSULTATION TO
                                          CORPORATIONS CONVERTING TO COOPERATIVE
                                                              EMPLOYEE-OWNERSHIP

SYDNEY AMARA MORRIS             DIRECTOR           REV. MORRIS PREVIOUSLY SERVES
2915 WEST 12TH VANCOUVER, BRITISH                AS A MINISTER OF THE UNITARIAN-
COLUMBIA, CANADA V6K2R2  DOB: 09/07/49                   UNIVERSALIST FELLOWSHIP

*CHARLES T. NASON               DIRECTOR           CHAIRMAN, PRESIDENT AND CHIEF
7315 WISCONSIN AVENUE, BETHESDA                  EXECUTIVE OFFICER OF THE ACACIA
MARYLAND 20814  DOB: 04/22/46                    GROUP, A WASHINGTON, D.C.-BASED
                                                FINANCIAL SERVICES ORGANIZATION,
                                                    INCLUDING ACACIA MUTUAL LIFE
                                                   INSURANCE COMPANY AND CALVERT
                                                                     GROUP, LTD.

*D. WAYNE SILBY, ESQ.           DIRECTOR             TRUSTEE/DIRECTOR OF EACH OF
1715 18TH STREET, N.W.,                          THE INVESTMENT COMPANIES IN THE
WASHINGTON, D.C. 20009                            CALVERT GROUP OF FUNDS, EXCEPT
DOB: 07/20/48                                  FOR CALVERT VARIABLE SERIES, INC.
                                                AND CALVERT NEW WORLD FUND, INC.
                                               OFFICER, DIRECTOR AND SHAREHOLDER
                                             OF SILBY, GUFFEY AND COMPANY, INC.,
                                              WHICH SERVES AS GENERAL PARTNER OF
                                                 CALVERT SOCIAL VENTURE PARTNERS
                                             ("CSVP"). DIRECTOR OF ACACIA MUTUAL
                                             LIFE INSURANCE COMPANY AND CHAIRMAN
                                                OF THE CALVERT SOCIAL INVESTMENT
                                                                     FOUNDATION.

RENO J. MARTINI,                DIRECTOR               SENIOR VICE PRESIDENT AND
DOB: 01/13/50                                CHIEF INVESTMENT OFFICER OF CALVERT
                                                  ASSET MANAGEMENT COMPANY, INC.

RONALD M. WOLFSHEIMER, CPA,     DIRECTOR               SENIOR VICE PRESIDENT AND
DOB: 07/24/52                                         CHIEF FINANCIAL OFFICER OF
                                                             CALVERT GROUP, LTD.

--------------------------------------------------------------------------------
*WILLIAM M. TARTIKOFF, ESQ.     DIRECTOR                  SENIOR VICE PRESIDENT,
DOB: 08/12/47                                     SECRETARY, AND GENERAL COUNSEL
                                                          OF CALVERT GROUP, LTD.
--------------------------------------------------------------------------------
CATHERINE S. BARDSLEY, ESQ.     DIRECTOR                  COUNSEL TO KIRKPATRICK
1800 MASSACHUSETTS AVENUE, N.W.,                   AND LOCKHART, LLP, THE FUND'S
WASHINGTON, D.C. 20036                                             LEGAL COUNSEL
DOB: 10/04/49
--------------------------------------------------------------------------------
DANIEL K. HAYES                 DIRECTOR               VICE PRESIDENT OF CALVERT
DOB: 09/09/50                                          ASSET MANAGEMENT COMPANY,
                                                                            INC.
--------------------------------------------------------------------------------
SUSAN WALKER BENDER, ESQ.       OFFICER                ASSOCIATE GENERAL COUNSEL
DOB: 01/29/59                                           OF CALVERT GROUP, AND AN
                                                          OFFICER OF EACH OF ITS
                                                  SUBSIDIARIES AND CALVERT-SLOAN
                                                                ADVISERS, L.L.C.
--------------------------------------------------------------------------------
IVY WAFFORD DUKE, ESQ.          OFFICER                ASSOCIATE GENERAL COUNSEL
DOB: 09/07/68                                   OF CALVERT GROUP, AND AN OFFICER
                                                 OF EACH OF ITS SUBSIDIARIES AND
                                                  CALVERT-SLOAN ADVISERS, L.L.C.
                                                     PRIOR TO WORKING AT CALVERT
                                                GROUP, MS. DUKE WAS AN ASSOCIATE
                                              IN THE INVESTMENT MANAGEMENT GROUP
                                          OF THE BUSINESS AND FINANCE DEPARTMENT
                                                     OF DRINKER BIDDLE AND REATH
--------------------------------------------------------------------------------
VICTOR FRYE, ESQ.               OFFICER           COUNSEL AND COMPLIANCE OFFICER
DOB: 10/15/58                                    OF CALVERT GROUP AND AN OFFICER
                                                 OF EACH OF ITS SUBSIDIARIES AND
                                                  CALVERT-SLOAN ADVISERS, L.L.C.
                                              PRIOR TO WORKING AT CALVERT GROUP,
                                             MR. FRYE WAS COUNSEL AND MANAGER OF
                                                THE COMPLIANCE DEPARTMENT AT THE
                                                                  ADVISORS GROUP
--------------------------------------------------------------------------------
JENNIFER STREAKS, ESQ.          OFFICER             ASSISTANT GENERAL COUNSEL OF
DOB: 08/02/71                                       CALVERT GROUP AND AN OFFICER
                                                     OF EACH OF ITS SUBSIDIARIES
                                                     AND CALVERT-SLOAN ADVISERS,
                                                         L.L.C. PRIOR TO JOINING
                                              CALVERT GROUP IN 1999, MS. STREAKS
                                            HAD BEEN A REGULATORY ANALYST IN THE
                                                    MARKET REGULATION DEPARTMENT
                                                     OF THE NATIONAL ASSOCIATION
                                                     OF SECURITIES DEALERS SINCE
                                                            1997. PRIOR TO THIS,
                                                      MS. STREAKS HAD BEEN A LAW
                                                          CLERK TO THE HONORABLE
                                                       MAURICE FOLEY AT THE U.S.
                                                    TAX COURT FOR THE YEAR SINCE
                                                          GRADUATING FROM HOWARD
                                                       UNIVERSITY SCHOOL OF LAW,
                                                         WHERE SHE WAS A STUDENT
                                                                      1993-1996.
--------------------------------------------------------------------------------
MICHAEL V. YUHAS JR., CPA       OFFICER                         DIRECTOR OF FUND
DOB: 08/04/61                                                  ADMINISTRATION OF
                                                             CALVERT GROUP, LTD.
--------------------------------------------------------------------------------


     The  address  of  Trustee  and  Officers,  unless  otherwise noted, is 4550
Montgomery  Avenue, Suite 1000N, Bethesda, Maryland 20814. Trustees and officers
of  the  Fund  as  a  group  own  less  than 1% of any class of each Portfolio's
outstanding  shares.  Trustees marked with an *, above, are "interested persons"
of  the  Fund,  under  the  Investment  Company  Act  of  1940.

     Mr.  Baird,  Dr.  Mollner, Ms. Adamson, Ms. Jones, and Rev. Morris serve on
the Fund's Audit Committee. Ms. Adamson, Dr. Mollner, and Mr. Silby serve on the
Fund's  High  Social  Impact  Investments  Committee  which  assists the Fund in
identifying,  evaluating  and  selecting  investments in securities that offer a
rate of return below the then-prevailing market rate and that present attractive
opportunities for furthering the Fund's social criteria. Ms. Jones, Rev. Morris,
and  Messrs.  Guffey  and  Silby  serve on the Fund's Special Equities Committee
which  assists  the  Fund  in identifying, evaluating, and selecting appropriate
special  equity  investment  opportunities  for  the  Fund.
     The  Advisory  Council  is  a  resource  to  the  Fund's  Board of Trustees
regarding  communications  networks  for  the  Fund  and  the  application  and
refinement  of  the  Fund's  social criteria. The Advisory Council has no power,
authority,  or  responsibility with respect to the management of the Fund or the
conduct  of  the affairs of the Fund. Messrs. Silby, Guffey and Mollner, and Ms.
Krumsiek  serve  as  directors  of  the  Calvert Social Investment Foundation, a
non-profit  organization  formed  to  increase awareness and educate the general
public about the benefits of socially conscious investing. The Foundation is not
directly  affiliated  with  Calvert  Group.
     During  fiscal  1999,  Trustees  of the Fund not affiliated with the Fund's
Advisor  were  paid  $39,781  by  the  Money  Market  Portfolio, $142,545 by the
Balanced  Portfolio,  $15,264  by  the  Bond  Portfolio,  $37,479  by the Equity
Portfolio,  and  $8,228 by the Managed Index Portfolio. Trustees of the Fund not
affiliated  with  the  Advisor  presently  receive  an annual fee of $20,500 for
service  as a member of the Board of Trustees of the Calvert Group of Funds, and
a  fee  of  $750  to $1500 for each regular Board or Committee meeting attended;
such  fees  are  allocated  among  the  respective  Portfolios  based upon their
relative  net  assets.  Trustees who serve only the CSIF Board receive an annual
fee  of  $15,430,  plus  $600  for  each  Board  and Committee meeting attended.
     Trustees  of  the  Fund not affiliated with the Fund's Advisor may elect to
defer  receipt  of all or a percentage of their fees and invest them in any fund
in  the  Calvert Family of Funds through the Trustees Deferred Compensation Plan
(shown  as  "Pension  or  Retirement Benefits Accrued as part of Fund Expenses,"
below).  Deferral  of  the  fees is designed to maintain the parties in the same
position  as  if the fees were paid on a current basis. Management believes this
will have a negligible effect on the Fund's assets, liabilities, net assets, and
net  income  per  share.

                           Trustee Compensation Table
                                Fiscal Year 1999
                               (unaudited numbers)

Aggregate Compensation       Pension or Retirement    Total Compensation from
from Registrant for Service  Benefits Accrued as part Registrant and Fund
as Trustee/Officer           of Registrant Expenses*  Complex paid to Trustee**

Name of Trustee/Officer
Rebecca  Adamson          $32,283               $0          $32,283
Richard  L.  Baird,  Jr.  $2,999                $0          $39,250
John  G.  Guffey,  Jr.    $11,114               $1,896      $56,365
Joy  V.  Jones            $29,580               $0          $29,580
Terrence  J.  Mollner     $24,830               $0          $33,830
Sydney  Amara  Morris     $22,630               $12,000     $22,630
D.  Wayne  Silby         $20,332                $0          $60,831

*Ms.  Adamson,  Ms.  Jones,  Rev.  Morris, and Mr. Guffey have chosen to defer a
portion  of  their  compensation.  As  of  September  30,  1999,  total deferred
compensation,  including  dividends  and  capital  appreciation,  was  $54,604,
$17,765,  $31,559  and  $11,022,  for  each  of  them,  respectively.
**As  of  September  30,  1999, The Fund Complex consists of nine (9) registered
investment  companies.

                        investment advisor and subadvisor
                        ---------------------------------

     The  Fund's  Investment  Advisor is Calvert Asset Management Company, Inc.,
4550 Montgomery Avenue, 1000N, Bethesda, Maryland 20814, a subsidiary of Calvert
Group  Ltd.,  which  is  a subsidiary of Acacia Mutual Life Insurance Company of
Washington,  D.C.  ("Acacia").  Acacia is a subsidiary of Ameritas Acacia Mutual
Holding  Company.  Under  the Advisory Contract, the Advisor provides investment
advice  to the Fund and oversees its day-to-day operations, subject to direction
and control by the Fund's Board of Trustees. The Advisor provides the Funds with
investment supervision and management, and office space; furnishes executive and
other  personnel  to  the  Funds;  and  pays  the  salaries  and  fees  of  all
Trustees/Directors  who are employees of the Advisor or its affiliates. The Fund
pays  all  other  administrative  and  operating expenses, including: custodial,
registrar,  dividend disbursing and transfer agency fees; administrative service
fees;  federal  and  state  securities  registration  fees;  salaries,  fees and
expenses of trustees, executive officers and employees of the Fund, and Advisory
Council  members,  who  are  not  employees of the Advisor or of its affiliates;
insurance  premiums;  trade  association  dues;  legal and audit fees; interest,
taxes  and  other  business  fees;  expenses  of  printing  and mailing reports,
notices,  prospectuses, and proxy material to shareholders; annual shareholders'
meeting  expenses; and brokerage commissions and other costs associated with the
purchase  and  sale  of  portfolio  securities.
     The  Advisor reserves the right to (i) waive all or a part of its fee; (ii)
reimburse  the  Fund for expenses; and (iii) pay broker-dealers in consideration
of  their  promotional  or  administrative  services.
     Turner  Investment  Partners,  Inc.  is 100% employee owned. The subadvisor
receives  a  subadvisory  fee, paid by the Advisor, of 1.00% of the Fund's first
$100  million  of  average  net  assets  and  0.90% of any such assets over $100
million.
     The Fund has received an exemptive order to permit the Fund and the Advisor
to  enter into and materially amend the Investment Subadvisory Agreement without
shareholder  approval.  Within  90  days  of the hiring of any Subadvisor or the
implementation  of  any  proposed  material change in the Investment Subadvisory
Agreement, the Portfolio will furnish its shareholders information about the new
Subadvisor or Investment Subadvisory Agreement that would be included in a proxy
statement. Such information will include any change in such disclosure caused by
the  addition  of  a  new  Subadvisor  or  any  proposed  material change in the
Investment  Subadvisory Agreement of the Portfolio. The Portfolio will meet this
condition  by  providing  shareholders,  within  90  days  of  the hiring of the
Subadvisor  or  implementation  of  any  material  change  to  the  terms  of an
Investment  Subadvisory Agreement, with an information statement to this effect.

                          administrative services agent
                          -----------------------------

     Calvert  Administrative  Services  Company  ("CASC"),  an  affiliate of the
Advisor,  has  been  retained  by  the  Fund  to  provide certain administrative
services  necessary  to the conduct of its affairs, including the preparation of
regulatory  filings  and  shareholder reports. For providing such services, CASC
receives  an  annual administrative service fee payable monthly (as a percentage
of  net  assets)  as  follows:

                          Class A, B, and C           Class I

       Technology          0.25%                    0.05%

     Administrative  services  fees are allocated among classes as a class-level
expense  based  on  net  assets.

                             method of distribution
                             ----------------------

     Calvert  Distributors,  Inc.  ("CDI")  is  the  principal  underwriter  and
distributor  for  the Fund. CDI is an affiliate of the Fund's Advisor. Under the
terms  of its underwriting agreement with the Funds, CDI markets and distributes
the  Fund's  shares  and  is  responsible  for  preparing  advertising and sales
literature,  and  printing  and  mailing  prospectuses to prospective investors.
     Pursuant  to  Rule 12b-1 under the Investment Company Act of 1940, the Fund
has  adopted  Distribution  Plans  (the  "Plans")  which  permit the Fund to pay
certain  expenses  associated with the distribution and servicing of its shares.
Such  expenses  for  Class A shares may not exceed, on an annual basis, 0.25% of
the  Fund's  Class  A  average  daily  net  assets.
     Expenses  under  the Fund's Class B and Class C Plans may not exceed, on an
annual  basis,  1.00%  of  the  Class  B  and  Class C average daily net assets,
respectively.  Class  I  has  no  distribution  plan. Class A Distribution Plans
reimburse  CDI only for expenses it incurs, while the Class B and C Distribution
Plans  compensate  CDI at a set rate regardless of CDI's expenses.  Distribution
Plan expenses may be spent for advertising, printing and mailing of prospectuses
to  persons  who  are  not  already  Fund  shareholders,  compensation  to
broker/dealers,  underwriters,  and salespersons, and, for Class B, interest and
finance  charges.
     The  Fund's  Distribution  Plans  were  approved  by the Board of Trustees,
including  the  Trustees  who  are not "interested persons" of the Fund (as that
term is defined in the Investment Company Act of 1940) and who have no direct or
indirect  financial  interest in the operation of the Plans or in any agreements
related  to  the Plans. The selection and nomination of the Trustees who are not
interested  persons  of  the  Fund  is  committed  to  the  discretion  of  such
disinterested  Trustees.  In  establishing  the  Plans,  the Trustees considered
various  factors including the amount of the distribution expenses. The Trustees
determined that there is a reasonable likelihood that the Plans will benefit the
Fund  and its shareholders, including economies of scale at higher asset levels,
better  investment  opportunities  and  more  flexibility  in managing a growing
portfolio.
     The  Plans  may  be  terminated by vote of a majority of the non-interested
Trustees  who  have no direct or indirect financial interest in the Plans, or by
vote  of  a  majority  of the outstanding shares of the Fund. If the Fund should
ever switch to a new principal underwriter without terminating the Class B Plan,
the  fee  would  be  prorated between CDI and the new principal underwriter. Any
change  in  the  Plans that would materially increase the distribution cost to a
Class  requires  approval  of the shareholders of the affected class; otherwise,
the  Plans  may  be  amended  by  the  Trustees,  including  a  majority  of the
non-interested  Trustees  as  described above. The Plans will continue in effect
for  successive  one-year  terms  provided that such continuance is specifically
approved  by:  (i) the vote of a majority of the Trustees who are not parties to
the  Plans  or  interested  persons  of any such party and who have no direct or
indirect financial interest in the Plans, and (ii) the vote of a majority of the
entire  Board  of  Trustees.
     Apart  from the Plans, the Advisor and CDI, at their own expense, may incur
costs  and  pay expenses associated with the distribution of shares of the Fund.
The  Advisor  and/or  CDI  has agreed to pay certain firms compensation based on
sales  of  Fund  shares  or  on  assets  held in those Firm's accounts for their
marketing and distribution of the Fund shares, above the usual sales charges and
service  fees.
     CDI,  makes  a  continuous  offering  of  the  Fund's securities on a "best
efforts"  basis.  Under  the terms of the agreement, CDI is entitled to receive,
pursuant  to  the  Distribution Plans, a distribution fee and a service fee from
the  Fund  based  on  the average daily net assets of each Class. These fees are
paid  pursuant  to  the  Fund's  Distribution  Plan.

Class  A shares are offered at net asset value plus a front-end sales charge as
follows:

                                   AS A % OF     AS A % OF    ALLOWED TO
AMOUNT OF                          OFFERING     NET AMOUNT    BROKERS AS A % OF
INVESTMENT                         PRICE        INVESTED      OFFERING PRICE
LESS  THAN  $50,000                4.75%        4.99%          4.00%
$50,000 BUT LESS THAN $100,000     3.75%        3.90%          3.00%
$100,000 BUT LESS THAN $250,000    2.75%        2.83%          2.25%
$250,000 BUT LESS THAN $500,000    1.75%        1.78%          1.25%
$500,000 BUT LESS THAN $1,000,000  1.00%        1.01%          0.80%
$1,000,000 AND OVER                0.00%        0.00%          0.00%

     CDI  receives  any  front-end  sales  charge or CDSC paid. A portion of the
front-end  sales  charge  may  be  reallowed  to  dealers.

     Fund  Trustees  and certain other affiliated persons of the Fund are exempt
from  the  sales  charge  since  the  distribution  costs are minimal to persons
already  familiar with the Fund. Other groups (e.g., group retirement plans) are
exempt  due  to  economies  of  scale  in  distribution.  See  Exhibit  A to the
Prospectus.

                    Transfer and shareholder servicing agentS
                    -----------------------------------------

     National  Financial  Data  Services, Inc. ("NFDS"), (P.O. Box 19544, Kansas
City,  MO,  64121-9544),  a  subsidiary  of  State Street Bank & Trust, has been
retained  by  the  Fund  to act as transfer agent and dividend disbursing agent.
These  responsibilities include: responding to certain shareholder inquiries and
instructions,  crediting  and  debiting  shareholder  accounts for purchases and
redemptions  of Fund shares and confirming such transactions, and daily updating
of  shareholder  accounts  to  reflect  declaration  and  payment  of dividends.
     Calvert Shareholder Services, Inc. ("CSSI"), a subsidiary of Calvert Group,
Ltd.  and  Acacia  has been retained by the Fund to act as shareholder servicing
agent.  Shareholder servicing responsibilities include responding to shareholder
inquiries  and  instructions  concerning their accounts, entering any telephoned
purchases  or  redemptions  into  the  NFDS system, maintenance of broker-dealer
data,  and preparing and distributing statements to shareholders regarding their
accounts.
     For these services, CSSI receives a fee of $6 per share shareholder account
and  $0.65  per  transaction.

                             portfolio transactions
                             ----------------------

     Fund transactions are undertaken on the basis of their desirability from an
investment  standpoint.  The  Fund's  Advisor  and  Subadvisor  make  investment
decisions  and  the  choice  of  brokers  and  dealers  under  the direction and
supervision  of  the  Fund's  Board  of  Trustees.
     Broker-dealers who execute portfolio transactions on behalf of the Fund are
selected  on  the  basis  of  their  execution  capability and trading expertise
considering,  among  other  factors, the overall reasonableness of the brokerage
commissions, current market conditions, size and timing of the order, difficulty
of  execution,  per share price, market familiarity, reliability, integrity, and
financial  condition,  subject to the Advisor/Subadvisor obligation to seek best
execution. The Advisor or Subadvisor may also consider sales of Fund shares as a
factor  in  the  selection  of  brokers.
     While  the  Fund's  Advisor  and Subadvisor select brokers primarily on the
basis  of  best execution, in some cases they may direct transactions to brokers
based  on  the  quality and amount of the research and research-related services
which  the  brokers  provide  to  them.  These research services include advice,
either  directly  or  through  publications  or  writings,  as  to  the value of
securities,  the advisability of investing in, purchasing or selling securities,
and  the  availability  of  securities  or  purchasers or sellers of securities;
furnishing of analyses and reports concerning issuers, securities or industries;
providing  information  on economic factors and trends; assisting in determining
portfolio  strategy;  providing  computer  software  used  in security analyses;
providing  portfolio  performance  evaluation and technical market analyses; and
providing  other  services  relevant  to the investment decision making process.
Other  such  services are designed primarily to assist the Advisor in monitoring
the  investment  activities  of  the  Subadvisor(s)  of  the Fund. Such services
include  portfolio  attribution  systems,  return-based  style  analysis,  and
trade-execution  analysis.     The  Advisor  and/or  Subadvisor  may also direct
selling  concessions  and/or  discounts  in  fixed-price  offerings for research
services.
     If,  in  the  judgment  of  the Advisor or Subadvisor(s), the Fund or other
accounts  managed  by  them will be benefited by supplemental research services,
they  are  authorized  to  pay brokerage commissions to a broker furnishing such
services  which  are  in  excess  of  commissions  which another broker may have
charged for effecting the same transaction. It is the policy of the Advisor that
such research services will be used for the benefit of the Fund as well as other
Calvert  Group  funds  and  managed  accounts.

                        Personal securities transactions
                        --------------------------------

     The  Fund,  its  Advisor,  and principal underwriter have adopted a Code of
Ethics pursuant to Rule 17j-1 of the Investment Company Act of 1940. The Code of
Ethics  is  designed to protect the public from abusive trading practices and to
maintain  ethical  standards  for  access  persons  as  defined in the rule when
dealing  with  the  public.  The  Code  of  Ethics permits the Fund's investment
personnel  to invest in securities that maybe purchased or held by the Fund. The
Code of Ethics contains certain conditions such as preclearance and restrictions
on  use  of  material  information.

                     independent accountants and custodians
                     --------------------------------------

     Arthur  Anderson LLP has been selected by the Board of Trustees to serve as
independent accountants for fiscal year 2000. State Street Bank & Trust Company,
N.A.,  225  Franklin Street, Boston, MA 02110, serves as custodian of the Fund's
investments.  Allfirst  Financial,  Inc.,  25  South  Charles Street, Baltimore,
Maryland  21203  also  serves as custodian of certain of the Fund's cash assets.
The  custodians  have  no part in deciding the Fund's investment policies or the
choice  of  securities  that  are  to  be  purchased  or  sold  for  the Fund's.

<PAGE>

                               General Information
                               -------------------

     The  Fund  is  an  open-end  management  investment company, organized as a
Massachusetts  business trust on December 14, 1981. The Fund is non-diversified.
The Fund's  Declaration  of  Trust  contains  an  express  disclaimer of
shareholder liability  for  acts  or  obligations  of  the  Fund.  The
shareholders  of  a Massachusetts  business  trust  might,  however, under
certain circumstances, be held personally liable as partners for its
obligations. The Declaration of Trust provides  for  indemnification  and
reimbursement of expenses out of Fund assets for  any  shareholder  held
personally  liable for obligations of the Fund. The Declaration of Trust also
provides that the Fund shall, upon request, assume the defense  of  any claim
made against any shareholder for any act or obligation of the  Fund  and
satisfy  any  judgment thereon. The Declaration of Trust further provides that
the Fund may maintain appropriate insurance (for example, fidelity
bonding  and errors and omissions insurance) for the protection of the Fund, its
shareholders,  trustees,  officers,  employees and agents to cover possible tort
and  other liabilities. Thus, the risk of a shareholder incurring financial loss
on  account  of  shareholder liability is limited to circumstances in which both
inadequate  insurance  exists  and  the  Fund  itself  is  unable  to  meet  its
obligations.
     Each share represents an equal proportionate interest with each other share
and  is entitled to such dividends and distributions out of the income belonging
to  such  class as declared by the Board. The Fund  offers four separate classes
of  shares:  Class  A,  Class  B,  Class  C  and  Class I. Each class represents
interests  in the same portfolio of investments but, as further described in the
prospectus, each class is subject to differing sales charges and expenses, which
differences  will  result  in differing net asset values and distributions. Upon
any  liquidation  of  the Fund, shareholders of each class are entitled to share
pro  rata in the net assets belonging to that series available for distribution.
     The  Fund  is not required to hold annual shareholder meetings, but special
meetings  may be called for certain purposes such as electing Trustees, changing
fundamental  policies, or approving a management contract. As a shareholder, you
receive  one  vote for each share you own, except that matters affecting classes
differently,  such  as  Distribution  Plans,  will be voted on separately by the
affected  class(es).

<PAGE>

                                    appendix
                                    --------

CORPORATE  BOND  AND  COMMERCIAL  PAPER  RATINGS
Corporate  Bonds:
Description  of Moody's Investors Service Inc.'s/Standard & Poor's bond ratings:
     Aaa/AAA:  Best quality. These bonds carry the smallest degree of investment
risk  and  are  generally  referred  to  as  "gilt  edge." Interest payments are
protected  by  a  large  or  by  an exceptionally stable margin and principal is
secure.  This rating indicates an extremely strong capacity to pay principal and
interest.
     Aa/AA:  Bonds  rated  AA  also  qualify  as  high-quality debt obligations.
Capacity  to  pay  principal and interest is very strong, and in the majority of
instances they differ from AAA issues only in small degree. They are rated lower
than  the best bonds because margins of protection may not be as large as in Aaa
securities,  fluctuation  of protective elements may be of greater amplitude, or
there  may  be other elements present which make long-term risks appear somewhat
larger  than  in  Aaa  securities.
     A/A:  Upper-medium  grade obligations. Factors giving security to principal
and interest are considered adequate, but elements may be present which make the
bond  somewhat  more  susceptible  to  the  adverse effects of circumstances and
economic  conditions.
     Baa/BBB:  Medium  grade obligations; adequate capacity to pay principal and
interest.  Whereas they normally exhibit adequate protection parameters, adverse
economic  conditions  or  changing  circumstances  are  more likely to lead to a
weakened  capacity to pay principal and interest for bonds in this category than
for  bonds  in  higher  rated  categories.
     Ba/BB,  B/B,  Caa/CCC, Ca/CC: Debt rated in these categories is regarded as
predominantly  speculative  with  respect  to capacity to pay interest and repay
principal.  The  higher  the  degree of speculation, the lower the rating. While
such  debt  will  likely have some quality and protective characteristics, these
are  outweighed  by  large  uncertainties  or  major  risk  exposure  to adverse
conditions.
     C/C:  This  rating  is  only for income bonds on which no interest is being
paid.
     D:  Debt  in  default;  payment of interest and/or principal is in arrears.

Commercial  Paper  Ratings:
     MOODY'S  INVESTORS  SERVICE,  INC.:
     The  Prime  rating  is  the  highest  commercial  paper  rating assigned by
Moody's.  Among  the  factors considered by Moody's in assigning ratings are the
following:  (1)  evaluation  of  the  management  of  the  issuer;  (2) economic
evaluation  of  the  issuer's  industry  or  industries  and  an  appraisal  of
speculative-type risks which may be inherent in certain areas; (3) evaluation of
the  issuer's  products  in relation to competition and customer acceptance; (4)
liquidity;  (5) amount and quality of long-term debt; (6) trend of earnings over
a  period  of  ten  years;  (7)  financial  strength of a parent company and the
relationships  which exist with the issuer; and (8) recognition by management of
obligations  which  may  be  present or may arise as a result of public interest
questions  and  preparations to meet such obligations. Issuers within this Prime
category may be given ratings 1, 2, or 3, depending on the relative strengths of
these  factors.
     STANDARD  &  POOR'S  CORPORATION:
     Commercial  paper  rated  A  by  Standard  &  Poor's  has  the  following
characteristics:  (i)  liquidity  ratios are adequate to meet cash requirements;
(ii)  long-term senior debt rating should be A or better, although in some cases
BBB  credits  may be allowed if other factors outweigh the BBB; (iii) the issuer
should  have access to at least two additional channels of borrowing; (iv) basic
earnings  and  cash  flow  should  have an upward trend with allowances made for
unusual  circumstances;  and  (v) typically the issuer's industry should be well
established and the issuer should have a strong position within its industry and
the  reliability and quality of management should be unquestioned. Issuers rated
A  are  further  referred to by use of numbers 1, 2 and 3 to denote the relative
strength  within  this  highest  classification.

<PAGE>
                                LETTER OF INTENT


                                                                            Date

Calvert  Distributors,  Inc.
4550  Montgomery  Avenue
Bethesda,  MD  20814

Ladies  and  Gentlemen:

     By  signing  this  Letter of Intent, or affirmatively marking the Letter of
Intent  option  on  my Fund Account Application Form, I agree to be bound by the
terms and conditions applicable to Letters of Intent appearing in the Prospectus
and  the  Statement  of  Additional  Information for the Fund and the provisions
described  below  as  they  may  be  amended from time to time by the Fund. Such
amendments  will  apply  automatically  to  existing  Letters  of  Intent.

     I  intend  to invest in the shares of:_____________________     (Fund name)
during  the  thirteen  (13)  month  period  from  the  date of my first purchase
pursuant to this Letter (which cannot be more than ninety (90) days prior to the
date  of  this  Letter  or  my  Fund  Account  Application  Form,  whichever  is
applicable),  an aggregate amount (excluding any reinvestments of distributions)
of  at  least  fifty  thousand dollars ($50,000) which, together with my current
holdings of the Fund (at public offering price on date of this Letter or my Fund
Account  Application  Form,  whichever  is applicable), will equal or exceed the
amount  checked  below:

     __  $50,000  __  $100,000  __  $250,000  __  $500,000  __  $1,000,000

     Subject  to  the conditions specified below, including the terms of escrow,
to  which  I hereby agree, each purchase occurring after the date of this Letter
will  be made at the public offering price applicable to a single transaction of
the dollar amount specified above, as described in the Fund's prospectus. "Fund"
in  this  Letter of Intent shall refer to the Fund or Portfolio, as the case may
be.  No  portion of the sales charge imposed on purchases made prior to the date
of  this  Letter  will  be  refunded.

     I  am  making  no commitment to purchase shares, but if my purchases within
thirteen  months from the date of my first purchase do not aggregate the minimum
amount  specified  above,  I  will  pay  the  increased  amount of sales charges
prescribed  in  the  terms of escrow described below. I understand that 4.75% of
the  minimum dollar amount specified above will be held in escrow in the form of
shares  (computed  to the nearest full share). These shares will be held subject
to  the  terms  of  escrow  described  below.

     From  the initial purchase (or subsequent purchases if necessary), 4.75% of
the  dollar amount specified in this Letter shall be held in escrow in shares of
the  Fund  by  the  Fund's  transfer  agent.  For example, if the minimum amount
specified  under the Letter is $50,000, the escrow shall be shares valued in the
amount  of  $2,375 (computed at the public offering price adjusted for a $50,000
purchase).  All  dividends  and  any  capital gains distribution on the escrowed
shares  will  be  credited  to  my  account.

     If  the  total  minimum  investment specified under the Letter is completed
within a thirteen month period, escrowed shares will be promptly released to me.
However,  shares  disposed  of  prior  to completion of the purchase requirement
under  the  Letter  will  be  deducted  from the amount required to complete the
investment  commitment.

     Upon  expiration of this Letter, the total purchases pursuant to the Letter
are  less  than  the  amount  specified  in the Letter as the intended aggregate
purchases,  Calvert  Distributors, Inc. ("CDI") will bill me for an amount equal
to  the  difference between the lower load I paid and the dollar amount of sales
charges which I would have paid if the total amount purchased had been made at a
single  time.  If  not  paid  by the investor within 20 days, CDI will debit the
difference  from  my account. Full shares, if any, remaining in escrow after the
aforementioned  adjustment  will  be released and, upon request, remitted to me.

     I  irrevocably constitute and appoint CDI as my attorney-in-fact, with full
power of substitution, to surrender for redemption any or all escrowed shares on
the  books  of  the  Fund.  This  power of attorney is coupled with an interest.

     The commission allowed by CDI to the broker-dealer named herein shall be at
the  rate  applicable  to the minimum amount of my specified intended purchases.

     The  Letter  may  be  revised  upward  by  me  at  any  time  during  the
thirteen-month  period,  and  such  a  revision will be treated as a new Letter,
except  that  the  thirteen-month  period during which the purchase must be made
will  remain  unchanged  and there will be no retroactive reduction of the sales
charges  paid  on  prior  purchases.

     In  determining  the  total  amount  of  purchases  made  hereunder, shares
disposed  of  prior  to  termination  of  this  Letter  will  be  deducted.  My
broker-dealer  shall  refer  to  this  Letter  of  Intent  in placing any future
purchase  orders  for  me  while  this  Letter  is  in  effect.



Dealer     Name  of  Investor(s)


By
     Authorized  Signer     Address



Date     Signature  of  Investor(s)



Date     Signature  of  Investor(s)

<PAGE>

INVESTMENT  ADVISOR
Calvert  Asset  Management  Company,  Inc.
4550  Montgomery  Avenue
Suite  1000N
Bethesda,  Maryland  20814

Shareholder  Services     TRANSFER  AGENT
Calvert  Shareholder  Services,  Inc.     National Financial Data Services, Inc.
4550  Montgomery  Avenue     330  West  9th  Street
Suite  1000N     Kansas  City,  Missouri  64105
Bethesda,  Maryland  20814

PRINCIPAL  UNDERWRITER     INDEPENDENT  accountants
Calvert  Distributors,  Inc.     PricewaterhouseCoopers  LLP
4550  Montgomery  Avenue     250  West  Pratt  Street
Suite  1000N     Baltimore,  Maryland  21201
Bethesda,  Maryland  20814


<PAGE>

Part  C.  Other  Information

Item  23.  Exhibits:
99b.1    Declaration  Of  Trust  incorporated  by  reference  to  registrant's
         Post-Effective Amendment  No.  30,  January 28, 2000, accession number
         0000356682-00-000003.

99b.2    By-Laws Of  The  Trust incorporated by reference to registrant's Post-
         Effective  Amendment  No.  30,  January  28,  2000,  accession  number
         0000356682-00-000003.

99.b5.   Investment  Advisory  Agreement filed herewith.

99.b5.a  Investment  Sub-Advisory Contract  (Atlanta  Capital), incorporated by
         reference to registrant's Post-Effective Amendment No. 30, January 28,
         2000,  accession  number  0000356682-00-000003.

99.b5.b  Investment  Sub-Advisory  Contract  (Brown  Capital  Management),
         incorporated by reference to registrant's Post-Effective Amendment No.
         30,  January  28,  2000,  accession  number  0000356682-00-000003.

99.b5.c  Investment  Sub-Advisory  Contract  (NCM  Capital  Management),
         incorporated by reference to registrant's Post-Effective Amendment No.
         30,  January  28,  2000,  accession  number  0000356682-00-000003.

99.b5.d  Investment  Sub-Advisory  Contract  (State  Street  Global  Advisors),
         incorporated by reference to registrant's Post-Effective Amendment No.
         30,  January  28,  2000,  accession  number  0000356682-00-000003.

99.b5.e  Investment  Sub-Advisory  Contract  (Turner) filed herewith.

99.b6    Underwriting  Agreement filed herewith.

99.b7  .  Deferred  Compensation  Agreement  incorporated  by  reference  to
         registrant's  Post-Effective  Amendment  No.  30,  January  28,  2000,
         accession  number  0000356682-00-000003.

99.b8.   Custodial  Contract, incorporated  by  reference to registrant's Post-
         Effective  Amendment  No. 25, dated January 31, 1998, accession number
         0000356682-98-000001.

99.b9.a. Transfer  Agency  Contract  and  Shareholder  Servicing  Contract
         filed herewith.

99.b9.b. Administrative  Services  Agreement filed herewith.

99.b10   Opinion  and  Consent  of  Counsel  filed  herewith.

99.b11.  Consent of  Independent Accountants to use of report (not applicable).

99.b15   Plan  of Distribution  for  Class  A,  Class  B  and  Class  C Shares
         filed herewith.

99.b17.a  Multiple-Class Plan filed herewith.

99.b17.b  Power  of  Attorney  forms signed  by  each director, incorporated by
          reference  to registrant's  Post-Effective  Amendment  No.  29,  dated
          January  28,  1999,  accession  number  0000356682-99-000001.

99.b18   Code  of  Ethics, incorporated  by  reference  to  registrant's  Post-
         Effective  Amendment  No.  30,  January  28,  2000,  accession  number
         0000356682-00-000003.

Item  24.  Persons  controlled by  or  under  common  control  with  registrant

         not  applicable.

Item  25.  Indemnification

         Registrant's  Declaration  of  Trust, which declaration is exhibit 1 of
this  registration  statement,  provides,  in  summary, that officers, trustees,
employees,  and  agents  shall  be indemnified by registrant against liabilities
and  expenses  incurred  by  such  persons in connection with actions, suits, or
proceedings  arising  out  of their offices or duties of employment, except that
no  indemnification  can be made to such a person if he has been adjudged liable
of  willful  misfeasance,  bad faith, gross negligence, or reckless disregard of
his  duties.  In  the  absence  of  such  an  adjudication, the determination of
eligibility  for  indemnification  shall  be  made  by  independent counsel in a
written  opinion  or  by  the vote of a majority of a quorum of trustees who are
neither  "interested  persons" of registrant, as that term is defined in section
2(a)(19)  of  the Investment Company Act of 1940, nor parties to the proceeding.

         Registrant's  Declaration  Of  Trust  also provides that registrant may
purchase  and  maintain  liability  insurance on behalf of any officer, trustee,
employee  or  agent  against  any  liabilities arising from such status. In this
regard,  registrant  maintains  a  directors  &  officers  (partners)  liability
insurance  policy  with  Chubb  group  of  insurance companies, 15 Mountain View
Road,  Warren,  New  Jersey  07061,  providing  registrant  with  $5  million in
directors  and  officers liability coverage, plus $5 million in excess directors
and  officers  liability  coverage  for the independent trustees/directors only.
Registrant  also  maintains an $9 million investment company blanket bond issued
by  ICI  Mutual  Insurance  Company,  P.O.  Box 730, Burlington, Vermont, 05402.
The  fund  maintains  joint  coverage  with  the  other Calvert Group Funds, and
for  the  liability  coverage,  with  the  advisor  and its affiliated companies
("Calvert  Operating  Companies.")  The  premium  and the coverage are allocated
based  on  a  method  approved  by  the  disinterested  fund  trustees.

ITEM  26.  BUSINESS  AND  OTHER  CONNECTIONS  OF  INVESTMENT  ADVISER

                           NAME  OF  COMPANY,  PRINCIPAL
NAME                       BUSINESS  AND  ADDRESS                   CAPACITY

BARBARA  J.  KRUMSIEK      CALVERT  VARIABLE  SERIES,  INC.         OFFICER
                           CALVERT  MUNICIPAL  FUND,  INC.          AND
                           CALVERT  WORLD  VALUES  FUND,  INC.      DIRECTOR

                           INVESTMENT  COMPANIES
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           FIRST  VARIABLE  RATE  FUND  FOR        OFFICER
                           GOVERNMENT  INCOME                      AND
                           CALVERT  TAX-FREE  RESERVES             TRUSTEE
                           CALVERT  SOCIAL  INVESTMENT  FUND
                           CALVERT  CASH  RESERVES
                           THE  CALVERT  FUND
                           CALVERT SOCIAL INDEX SERIES, INC.
                           CALVERT IMPACT FUND, INC.

                           INVESTMENT  COMPANIES
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT  ASSET  MANAGEMENT  CO.,  INC.   OFFICER
                           INVESTMENT  ADVISOR                      AND
                           4550  MONTGOMERY  AVENUE                 DIRECTOR
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT  GROUP,  LTD.                    OFFICER
                           HOLDING  COMPANY                         AND
                           4550  MONTGOMERY  AVENUE                 DIRECTOR
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT  SHAREHOLDER  SERVICES,  INC.    OFFICER
                           TRANSFER  AGENT                          AND
                           4550  MONTGOMERY  AVENUE                 DIRECTOR
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT ADMINISTRATIVE SERVICES CO.      OFFICER
                           SERVICE  COMPANY                         AND
                           4550  MONTGOMERY  AVENUE                 DIRECTOR
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  DISTRIBUTORS,  INC.             OFFICER
                           BROKER-DEALER                            AND
                           4550  MONTGOMERY  AVENUE                 DIRECTOR
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT-SLOAN  ADVISERS,  LLC            DIRECTOR
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  NEW  WORLD  FUND,  INC.         DIRECTOR
                           INVESTMENT  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           --------------
                           ALLIANCE  CAPITAL  MGMT. L.P.     SR. VICE PRESIDENT
                           MUTUAL  FUND  DIVISION                   DIRECTOR
                           1345  AVENUE  OF  THE  AMERICAS
                           NEW  YORK,  NY  10105
                           --------------

RONALD  M.  WOLFSHEIMER    FIRST  VARIABLE  RATE  FUND              OFFICER
                           FOR  GOVERNMENT  INCOME
                           CALVERT  TAX-FREE  RESERVES
                           CALVERT  CASH  RESERVES
                           CALVERT  SOCIAL  INVESTMENT  FUND
                           THE  CALVERT  FUND
                           CALVERT  VARIABLE  SERIES,  INC.
                           CALVERT  MUNICIPAL  FUND,  INC.
                           CALVERT  WORLD  VALUES  FUND,  INC.
                           CALVERT  NEW  WORLD  FUND,  INC.
                           CALVERT SOCIAL INDEX SERIES, INC.
                           CALVERT IMPACT FUND, INC.

                           INVESTMENT  COMPANIES
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           --------------
                           CALVERT  ASSET  MANAGEMENT  CO.,  INC.    OFFICER
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  GROUP,  LTD.                     OFFICER
                           HOLDING  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  SHAREHOLDER  SERVICES,  INC.     OFFICER
                           TRANSFER  AGENT
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  ADMINISTRATIVE  SERVICES  CO.    OFFICER
                           SERVICE  COMPANY                          AND
                           4550  MONTGOMERY  AVENUE                  DIRECTOR
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  DISTRIBUTORS,  INC.              OFFICER
                           BROKER-DEALER                             AND
                           4550  MONTGOMERY  AVENUE                  DIRECTOR
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT-SLOAN  ADVISERS,  LLC             OFFICER
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------

DAVID  R.  ROCHAT          FIRST  VARIABLE  RATE  FUND               OFFICER
                           FOR  GOVERNMENT  INCOME                   AND
                           CALVERT  TAX-FREE  RESERVES               TRUSTEE
                           CALVERT  CASH  RESERVES
                           THE  CALVERT  FUND

                           INVESTMENT  COMPANIES
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  MUNICIPAL  FUND,  INC.           OFFICER
                           INVESTMENT  COMPANY                       AND
                           4550  MONTGOMERY  AVENUE                  DIRECTOR
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  ASSET  MANAGEMENT  CO.,  INC.    OFFICER
                           INVESTMENT  ADVISOR                       AND
                           4550  MONTGOMERY  AVENUE                  DIRECTOR
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CHELSEA  SECURITIES,  INC.                OFFICER
                           SECURITIES  FIRM                          AND
                           POST  OFFICE  BOX  93                     DIRECTOR
                           CHELSEA,  VERMONT  05038
                           ---------------
                           GRADY,  BERWALD  &  CO.                   OFFICER
                           HOLDING  COMPANY                          AND
                           43A  SOUTH  FINLEY  AVENUE                DIRECTOR
                           BASKING  RIDGE,  NJ  07920
                           ---------------

RENO  J.  MARTINI          CALVERT  ASSET  MANAGEMENT  CO.,  INC.    OFFICER
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  GROUP,  LTD.                     OFFICER
                           HOLDING  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           FIRST  VARIABLE  RATE  FUND               OFFICER
                           FOR  GOVERNMENT  INCOME
                           CALVERT  TAX-FREE  RESERVES
                           CALVERT  CASH  RESERVES
                           CALVERT  SOCIAL  INVESTMENT  FUND
                           THE  CALVERT  FUND
                           CALVERT  VARIABLE  SERIES,  INC.
                           CALVERT  MUNICIPAL  FUND,  INC.
                           CALVERT  WORLD  VALUES  FUND,  INC.

                           INVESTMENT  COMPANIES
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  NEW  WORLD  FUND,  INC.         DIRECTOR
                           INVESTMENT  COMPANY                      AND
                           4550  MONTGOMERY  AVENUE                 OFFICER
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT-SLOAN  ADVISERS,  LLC            DIRECTOR
                           INVESTMENT  ADVISOR                      AND
                           4550  MONTGOMERY  AVENUE                 OFFICER
                           BETHESDA,  MARYLAND  20814
                           ---------------


CHARLES  T.  NASON         AMERITAS ACACIA MUTUAL HOLDING COMPANY   OFFICER
                           ACACIA  LIFE  INSURANCE                  AND
                                                                    DIRECTOR

                           INSURANCE  COMPANIES
                           7315  WISCONSIN  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           ACACIA  FINANCIAL  CORPORATION           OFFICER
                           HOLDING  COMPANY                         AND
                           7315  WISCONSIN  AVENUE                  DIRECTOR
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           ACACIA  FEDERAL  SAVINGS  BANK           DIRECTOR
                           SAVINGS  BANK
                           7600-B  LEESBURG  PIKE
                           FALLS  CHURCH,  VIRGINIA  22043
                           ---------------
                           ENTERPRISE  RESOURCES,  INC.             DIRECTOR
                           BUSINESS  SUPPORT  SERVICES
                           7315  WISCONSIN  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           ACACIA  REALTY  SQUARE,  L.L.C.          DIRECTOR
                           REALTY  INVESTMENTS
                           7315  WISCONSIN  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           GARDNER  MONTGOMERY  COMPANY             DIRECTOR
                           TAX  RETURN  PREPARATION  SERVICES
                           7315  WISCONSIN  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  GROUP,  LTD.                    DIRECTOR
                           HOLDING  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT ADMINISTRATIVE SERVICES CO.      DIRECTOR
                           SERVICE  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  ASSET  MANAGEMENT  CO.,  INC.   DIRECTOR
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  SHAREHOLDER  SERVICES,  INC.    DIRECTOR
                           TRANSFER  AGENT
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  SOCIAL  INVESTMENT  FUND        TRUSTEE
                           INVESTMENT  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           -----------------
                           THE  ADVISORS  GROUP,  LTD.              DIRECTOR
                           BROKER-DEALER  AND
                           INVESTMENT  ADVISOR
                           7315  WISCONSIN  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------

ROBERT-JOHN  H.            AMERITAS ACACIA MUTUAL HOLDING COMPANY   OFFICER
                           ACACIA  LIFE  INSURANCE

                           ACACIA  NATIONAL  LIFE  INSURANCE        OFFICER
                           INSURANCE  COMPANY                       AND
                           7315  WISCONSIN  AVENUE                  DIRECTOR
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           ACACIA  LIFE  INSURANCE                  OFFICER
                           INSURANCE  COMPANY
                           7315  WISCONSIN  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           ACACIA  FINANCIAL  CORPORATION           OFFICER
                           HOLDING  COMPANY                         AND
                           7315  WISCONSIN  AVENUE                  DIRECTOR
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           ACACIA  FEDERAL  SAVINGS  BANK           OFFICER
                           SAVINGS  BANK
                           7600-B  LEESBURG  PIKE
                           FALLS  CHURCH,  VIRGINIA  22043
                           ---------------
                           ENTERPRISE  RESOURCES,  INC.             DIRECTOR
                           BUSINESS  SUPPORT  SERVICES
                           7315  WISCONSIN  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           ACACIA  REALTY  SQUARE,  L.L.C.          DIRECTOR
                           REALTY  INVESTMENTS
                           7315  WISCONSIN  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           THE  ADVISORS  GROUP,  LTD.              DIRECTOR
                           BROKER-DEALER  AND
                           INVESTMENT  ADVISOR
                           7315  WISCONSIN  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           GARDNER  MONTGOMERY  COMPANY             DIRECTOR
                           TAX  RETURN  PREPARATION  SERVICES
                           7315  WISCONSIN  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  GROUP,  LTD.                    DIRECTOR
                           HOLDING  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  ADMINISTRATIVE  SERVICES  CO.   DIRECTOR
                           SERVICE  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT ASSET MANAGEMENT, CO., INC.      DIRECTOR
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  SHAREHOLDER  SERVICES,  INC.    DIRECTOR
                           TRANSFER  AGENT
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------

WILLIAM  M.  TARTIKOFF     ACACIA  NATIONAL  LIFE  INSURANCE        OFFICER
                           INSURANCE  COMPANY
                           7315  WISCONSIN  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           FIRST  VARIABLE  RATE  FUND  FOR         OFFICER
                           GOVERNMENT  INCOME
                           CALVERT  TAX-FREE  RESERVES
                           CALVERT  CASH  RESERVES
                           CALVERT  SOCIAL  INVESTMENT  FUND
                           THE  CALVERT  FUND
                           CALVERT  VARIABLE  SERIES,  INC.
                           CALVERT  MUNICIPAL  FUND,  INC.
                           CALVERT  WORLD  VALUES  FUND,  INC.
                           CALVERT  NEW  WORLD  FUND,  INC.
                           CALVERT SOCIAL INDEX SERIES, INC.
                           CALVERT IMPACT FUND, INC.
                           ---------------
                           INVESTMENT  COMPANIES
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  GROUP,  LTD.                    OFFICER
                           HOLDING  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  ADMINISTRATIVE                  OFFICER
                           SERVICES  COMPANY
                           SERVICE  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  ASSET  MANAGEMENT  CO.  INC.    OFFICER
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT  SHAREHOLDER  SERVICES,  INC.    OFFICER
                           TRANSFER  AGENT
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT  DISTRIBUTORS,  INC.             DIRECTOR
                           BROKER-DEALER                            AND
                           4550  MONTGOMERY  AVENUE                 OFFICER
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT-SLOAN  ADVISERS,  LLC            OFFICER
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------

                           INVESTMENT  COMPANIES
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------

SUSAN  WALKER  BENDER      CALVERT  GROUP,  LTD.                    OFFICER
                           HOLDING  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  ADMINISTRATIVE  SERVICES  CO.   OFFICER
                           SERVICE  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  ASSET  MANAGEMENT  CO.,  INC.   OFFICER
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT  SHAREHOLDER  SERVICES,  INC.    OFFICER
                           TRANSFER  AGENT
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT  DISTRIBUTORS,  INC.             OFFICER
                           BROKER-DEALER
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT-SLOAN  ADVISERS,  LLC            OFFICER
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           FIRST  VARIABLE  RATE  FUND  FOR         OFFICER
                           GOVERNMENT  INCOME
                           CALVERT  TAX-FREE  RESERVES
                           CALVERT  CASH  RESERVES
                           CALVERT  SOCIAL  INVESTMENT  FUND
                           THE  CALVERT  FUND
                           CALVERT  VARIABLE  SERIES,  INC.
                           CALVERT  MUNICIPAL  FUND,  INC.
                           CALVERT  WORLD  VALUES  FUND,  INC.
                           CALVERT  NEW  WORLD  FUND,  INC.
                           CALVERT SOCIAL INDEX SERIES, INC.
                           CALVERT IMPACT FUND, INC.

                           INVESTMENT  COMPANIES
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------

IVY  WAFFORD  DUKE         CALVERT  GROUP,  LTD.                    OFFICER
                           HOLDING  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  ADMINISTRATIVE  SERVICES  CO.   OFFICER
                           SERVICE  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  ASSET  MANAGEMENT  CO.,  INC.   OFFICER
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT  SHAREHOLDER  SERVICES,  INC.    OFFICER
                           TRANSFER  AGENT
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT  DISTRIBUTORS,  INC.             OFFICER
                           BROKER-DEALER
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT-SLOAN  ADVISERS,  LLC            OFFICER
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           FIRST  VARIABLE  RATE  FUND  FOR         OFFICER
                           GOVERNMENT  INCOME
                           CALVERT  TAX-FREE  RESERVES
                           CALVERT  CASH  RESERVES
                           CALVERT  SOCIAL  INVESTMENT  FUND
                           THE  CALVERT  FUND
                           CALVERT  VARIABLE  SERIES,  INC.
                           CALVERT  MUNICIPAL  FUND,  INC.
                           CALVERT  WORLD  VALUES  FUND,  INC.
                           CALVERT  NEW  WORLD  FUND,  INC.
                           CALVERT SOCIAL INDEX SERIES, INC.
                           CALVERT IMPACT FUND, INC.

                           INVESTMENT  COMPANIES
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------

JENNIFER  STREAKS          CALVERT  GROUP,  LTD.                     OFFICER
                           HOLDING  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  ADMINISTRATIVE  SERVICES  CO.    OFFICER
                           SERVICE  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  ASSET  MANAGEMENT  CO.,  INC.    OFFICER
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT  SHAREHOLDER  SERVICES,  INC.     OFFICER
                           TRANSFER  AGENT
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT  DISTRIBUTORS,  INC.              OFFICER
                           BROKER-DEALER
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT-SLOAN  ADVISERS,  LLC             OFFICER
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           FIRST  VARIABLE  RATE  FUND  FOR         OFFICER
                           GOVERNMENT  INCOME
                           CALVERT  TAX-FREE  RESERVES
                           CALVERT  CASH  RESERVES
                           CALVERT  SOCIAL  INVESTMENT  FUND
                           THE  CALVERT  FUND
                           CALVERT  VARIABLE  SERIES,  INC.
                           CALVERT  MUNICIPAL  FUND,  INC.
                           CALVERT  WORLD  VALUES  FUND,  INC.
                           CALVERT  NEW  WORLD  FUND,  INC.
                           CALVERT SOCIAL INDEX SERIES, INC.
                           CALVERT IMPACT FUND, INC.

                           INVESTMENT  COMPANIES
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------

VICTOR  FRYE               CALVERT  GROUP,  LTD.                     OFFICER
                           HOLDING  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  ADMINISTRATIVE  SERVICES  CO.    OFFICER
                           SERVICE  COMPANY
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ---------------
                           CALVERT  ASSET  MANAGEMENT  CO.,  INC.    OFFICER
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT  SHAREHOLDER  SERVICES,  INC.     OFFICER
                           TRANSFER  AGENT
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT  DISTRIBUTORS,  INC.              OFFICER
                           BROKER-DEALER
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           CALVERT-SLOAN  ADVISERS,  LLC            OFFICER
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           FIRST  VARIABLE  RATE  FUND  FOR         OFFICER
                           GOVERNMENT  INCOME
                           CALVERT  TAX-FREE  RESERVES
                           CALVERT  CASH  RESERVES
                           CALVERT  SOCIAL  INVESTMENT  FUND
                           THE  CALVERT  FUND
                           CALVERT  VARIABLE  SERIES,  INC.
                           CALVERT  MUNICIPAL  FUND,  INC.
                           CALVERT  WORLD  VALUES  FUND,  INC.
                           CALVERT  NEW  WORLD  FUND,  INC.
                           CALVERT SOCIAL INDEX SERIES, INC.
                           CALVERT IMPACT FUND, INC.

                           INVESTMENT  COMPANIES
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ----------------
                           THE  ADVISORS  GROUP,  LTD.              COUNSEL
                           BROKER-DEALER  AND                       AND
                           INVESTMENT  ADVISOR                      COMPLIANCE
                           7315  WISCONSIN  AVENUE                  MANAGER
                           BETHESDA,  MARYLAND  20814
                           ---------------

DANIEL  K.  HAYES          CALVERT  ASSET  MANAGEMENT  CO.,  INC.   OFFICER
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ------------------
                           FIRST  VARIABLE  RATE  FUND  FOR         OFFICER
                           GOVERNMENT  INCOME
                           CALVERT  TAX-FREE  RESERVES
                           CALVERT  CASH  RESERVES
                           CALVERT  SOCIAL  INVESTMENT  FUND
                           THE  CALVERT  FUND
                           CALVERT  VARIABLE  SERIES,  INC.
                           CALVERT  MUNICIPAL  FUND,  INC.
                           CALVERT  WORLD  VALUES  FUND,  INC.

                           INVESTMENT  COMPANIES
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ------------------

JOHN  NICHOLS              CALVERT  ASSET  MANAGEMENT               OFFICER
                           COMPANY,  INC.
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ------------------

DAVID  LEACH               CALVERT  ASSET  MANAGEMENT               OFFICER
                           COMPANY,  INC.
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ------------------

MATTHEW  D.  GELFAND       CALVERT  ASSET  MANAGEMENT               OFFICER
                           COMPANY,  INC.
                           INVESTMENT  ADVISOR
                           4550  MONTGOMERY  AVENUE
                           BETHESDA,  MARYLAND  20814
                           ------------------
                           STRATEGIC  INVESTMENT  MANAGEMENT        OFFICER
                           INVESTMENT  ADVISOR
                           1001  19TH  STREET  NORTH
                           ARLINGTON,  VIRGINIA  20009
                           ------------------

ITEM  27.  PRINCIPAL  UNDERWRITERS

         (A)      REGISTRANT'S  PRINCIPAL  UNDERWRITER  UNDERWRITES  SHARES  OF
FIRST  VARIABLE  RATE  FUND  FOR  GOVERNMENT  INCOME, CALVERT TAX-FREE RESERVES,
CALVERT  SOCIAL  INVESTMENT  FUND,  CALVERT  CASH  RESERVES,  THE  CALVERT FUND,
CALVERT  MUNICIPAL  FUND,  INC.,  CALVERT  WORLD  VALUES FUND, INC., CALVERT NEW
WORLD  FUND,  INC.,  CALVERT  SOCIAL  INDEX SERIES, INC., CALVERT VARIABLE
SERIES, INC., AND  CALVERT IMPACT FUND, INC.

         (B)      POSITIONS  OF  UNDERWRITER'S  OFFICERS  AND  DIRECTORS

NAME  AND  PRINCIPAL        POSITION(S)  WITH              POSITION(S)  WITH
BUSINESS  ADDRESS*          UNDERWRITER                    REGISTRANT

BARBARA  J. KRUMSIEK        DIRECTOR AND PRESIDENT         PRESIDENT AND TRUSTEE

RONALD  M.  WOLFSHEIMER     DIRECTOR,  SENIOR  VICE        TREASURER
                                  PRESIDENT AND
                            CHIEF FINANCIAL OFFICER

WILLIAM  M.  TARTIKOFF      DIRECTOR,  SENIOR  VICE        VICE PRESIDENT AND
                           PRESIDENT  AND  SECRETARY       SECRETARY

CRAIG  CLOYED               SENIOR  VICE  PRESIDENT        NONE

KAREN  BECKER               VICE PRESIDENT, OPERATIONS     NONE

MATTHEW  GELFAND            VICE  PRESIDENT                NONE

GEOFFREY  ASHTON            REGIONAL  VICE  PRESIDENT      NONE

MARTIN  BROWN               REGIONAL  VICE  PRESIDENT      NONE

BILL  HAIRGROVE             REGIONAL  VICE  PRESIDENT      NONE

ANTHONY  EAMES              REGIONAL  VICE  PRESIDENT      NONE

STEVE  HIMBER               REGIONAL  VICE  PRESIDENT      NONE

TANYA  WILLIAMS             REGIONAL  VICE  PRESIDENT      NONE

BEN  OGBOGU                 REGIONAL  VICE  PRESIDENT      NONE

CHRISTINE  TESKE            REGIONAL  VICE  PRESIDENT      NONE

JENNIFER  STREAKS           ASSISTANT  SECRETARY           NONE

SUSAN  WALKER  BENDER       ASSISTANT  SECRETARY           ASSISTANT SECRETARY

IVY  WAFFORD  DUKE          ASSISTANT  SECRETARY           ASSISTANT SECRETARY

VICTOR  FRYE                ASSISTANT  SECRETARY           NONE
                            AND  COMPLIANCE  OFFICER

* 4550 MONTGOMERY AVENUE, BETHESDA, MARYLAND 20814

         (C)      INAPPLICABLE.


ITEM  28.  LOCATION  OF  ACCOUNTS  AND  RECORDS

         RONALD  M.  WOLFSHEIMER,  TREASURER
         AND
         WILLIAM  M.  TARTIKOFF,  ASSISTANT  SECRETARY

         4550  MONTGOMERY  AVENUE,  SUITE  1000N
         BETHESDA,  MARYLAND  20814


ITEM  29.  MANAGEMENT  SERVICES

         NOT  APPLICABLE


ITEM  30.  UNDERTAKINGS

         INSOFAR  AS  INDEMNIFICATION  FOR  LIABILITY  ARISING  UNDER  THE
SECURITIES  ACT  OF 1933 MAY BE PERMITTED TO DIRECTORS, OFFICERS AND CONTROLLING
PERSONS  OF  THE  REGISTRANT PURSUANT TO THE FOREGOING PROVISIONS [OF RULE 484],
OR  OTHERWISE,  THE  REGISTRANT  HAS  BEEN  ADVISED  THAT  IN THE OPINION OF THE
SECURITIES AND EXCHANGE COMMISSION SUCH INDEMNIFICATION IS AGAINST PUBLIC POLICY
AS  EXPRESSED  IN  THE ACT AND IS, THEREFORE, UNENFORCEABLE. IN THE EVENT THAT A
CLAIM  FOR  INDEMNIFICATION  AGAINST SUCH LIABILITIES (OTHER THAN THE PAYMENT BY
THE  REGISTRANT  OF  EXPENSES  INCURRED  OR  PAID  BY  A  DIRECTOR,  OFFICER  OR
CONTROLLING  PERSON  OF  THE REGISTRANT IN THE SUCCESSFUL DEFENSE OF ANY ACTION,
SUIT  OR PROCEEDING) IS ASSERTED BY SUCH DIRECTOR, OFFICER OR CONTROLLING PERSON
IN  CONNECTION WITH THE SECURITIES BEING REGISTERED, THE REGISTRANT WILL, UNLESS
IN  THE OPINION OF COUNSEL THE MATTER HAS BEEN SETTLED BY CONTROLLING PRECEDENT,
SUBMIT  TO  A  COURT  OF  APPROPRIATE  JURISDICTION  THE  QUESTION  WHETHER SUCH
INDEMNIFICATION  BY IT IS AGAINST PUBLIC POLICY AS EXPRESSED IN THE ACT AND WILL
BE  GOVERNED  BY  THE  FINAL  ADJUDICATION  OF  SUCH  ISSUE.


SIGNATURES

PURSUANT  TO  THE  REQUIREMENTS OF THE SECURITIES ACT OF 1933 AND THE INVESTMENT
COMPANY  ACT  OF  1940,  THE  REGISTRANT  CERTIFIES  THAT  IT  MEETS  ALL OF THE
REQUIREMENTS  FOR  EFFECTIVENESS  OF  THIS  REGISTRATION  STATEMENT  UNDER  RULE
485(A)  UNDER  THE  SECURITIES  ACT  AND  HAS  DULY  CAUSED  THIS  REGISTRATION
STATEMENT  TO  BE  SIGNED  ON ITS BEHALF BY THE UNDERSIGNED, DULY AUTHORIZED, IN
THE  CITY OF  BETHESDA, AND STATE OF MARYLAND, ON THE 25TH DAY OF OCTOBER, 2000.

CALVERT  SOCIAL  INVESTMENT  FUND

BY:
___________**______________________
BARBARA  J.  KRUMSIEK
SENIOR  VICE  PRESIDENT  AND  TRUSTEE


         SIGNATURES

PURSUANT  TO  THE  REQUIREMENTS  OF  THE  SECURITIES  ACT  OF  1933,
THIS  REGISTRATION  STATEMENT  HAS  BEEN  SIGNED  BELOW  BY  THE  FOLLOWING
PERSONS  IN  THE  CAPACITIES  INDICATED.

SIGNATURE                           TITLE                     DATE

__________**____________            PRESIDENT  AND            10/25/2000
D.  WAYNE  SILBY                    TRUSTEE  (PRINCIPAL  EXECUTIVE  OFFICER)

__________**____________            TRUSTEE                   10/25/2000
JOHN  G.  GUFFEY,  JR.

__________**____________            SENIOR  VICE  PRESIDENT   10/25/2000
BARBARA  J.  KRUMSIEK               AND  TRUSTEE

__________**____________            PRINCIPAL  ACCOUNTING     10/25/2000
RONALD  M.  WOLFSHEIMER             OFFICER

__________**____________            TRUSTEE                   10/25/2000
REBECCA  L.  ADAMSON

__________**____________            TRUSTEE                   10/25/2000
RICHARD  L.  BAIRD,  JR.

__________**_____________           TRUSTEE                   10/25/2000
JOY  V.  JONES

__________**____________            TRUSTEE                   10/25/2000
TERRENCE  J.  MOLLNER

__________**____________            TRUSTEE                   10/25/2000
SYDNEY  AMARA  MORRIS

__________**____________            TRUSTEE                   10/25/2000
CHARLES  T.  NASON


**  SIGNED  BY  SUSAN WALKER BENDER  PURSUANT  TO  POWER  OF  ATTORNEY.
/s/ Susan Walker Bender



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