CALVERT SOCIAL INVESTMENT FUND
497, 2000-11-02
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Calvert  Social  Investment  Fund
Technology  Portfolio
Prospectus

October  31,  2000

<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         5.00% 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,  heath  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


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