DEFINITIVE ADDITIONAL PROXY MATERIALS

                       (File Nos. 333-02381 and 811-07589)

                                  SCHEDULE 14A

                    PROXY STATEMENT PURSUANT TO SECTION 14(a)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                           (AMENDMENT NO. ___________)

Filed by the Registrant                                                      [X]
Filed by a Party other than the Registrant                                   [_]

Check the appropriate box:

[_]  Preliminary Proxy Statement

[_]  Confidential, for Use of the Commission Only (as permitted by Rule
     14a-6(e)(2))

[_]  Definitive Proxy Statement

[X]  Definitive Additional Materials

[_]  Soliciting Material Pursuant to 240.14a-12

                         The Hartford Mutual Funds, Inc.
                (Name of Registrant as Specified in Its Charter)

     -----------------------------------------------------------------------
     (Name of Person(s) Filing Proxy Statement if Other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

[X]  No fee required.

[_]  Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.

     (1)  Title of each class of securities to which transaction applies:

     (2)  Aggregate number of securities to which transaction applies:

     (3)  Per unit price or other underlying value of transaction computed
          pursuant to Exchange Act Rule 0-11 (set forth the amount on which the
          filing fee is calculated and state how it was determined):

     (4)  Proposed maximum aggregate value of transaction:

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[_]  Fee paid previously by written preliminary materials.

[_]  Check box if any part of the fee is offset as provided by Exchange Act Rule
     0-11(a)(2) and identify the filing for which the offsetting fee was paid
     previously. Identify the previous filing by registration statement number,
     or the Form or Schedule and the date of its filing.

     (1)  Amount Previously Paid: ______________________________________

     (2)  Form, Schedule or Registration Statement No.: ________________

     (3)  Filing Party: ________________________________________________

     (4)  Date Filed: __________________________________________________

APRIL 6, 2006

THE HARTFORD SMALL COMPANY FUND



                       [FORM OF VOTING INSTRUCTION LETTER]

[DATE]

Danielle Maggelet
Senior Director, Client Services
MIS, an ADP Company
60 Research Road
Hingham MA 02043

Re: VOTING INSTRUCTIONS -- THE HARTFORD SMALL COMPANY FUND

Dear Ms. Maggelet:

As you may know, a special shareholder meeting for The Hartford Small Company
Fund (the "Fund"), a series of The Hartford Mutual Funds, Inc., is scheduled for
May 23, 2006. The purpose of the Meeting is (1) to vote on the approval of a
sub-advisory agreement between Hartford Investment Financial Services, LLC, the
Fund's investment manager, and Hartford Investment Management Company ("Hartford
Investment Management"), pursuant to which Hartford Investment Management will
serve as an additional sub-adviser to the Fund and manage a portion of the
Fund's assets; and (2) to transact such other business as may properly come
before the Meeting, or any adjournment(s) or postponement(s) thereof.

The following parties (the "Shareholders") held shares of the Fund on March 1,
2006, the record date:

     -    [LIST SHAREHOLDERS HERE]

In connection with the Special Meeting of Shareholders and pursuant to Rule
14a-3 under the Exchange Act of 1934, each Shareholder listed above has received
a copy of a written definitive proxy statement and proxy card soliciting the
Shareholder's vote on behalf of the Board of Directors of The Hartford Mutual
Funds, Inc., on behalf of the Fund. The undersigned has authority to act on
behalf of the Shareholders by virtue of [DESCRIBE BASIS OF AUTHORITY].

The undersigned hereby requests that you please vote the number of shares held
by the Shareholders in the manner indicated below.

VOTING INSTRUCTIONS FOR SPECIAL MEETING OF SHAREHOLDERS TO BE HELD ON MAY 23,
2006

THESE VOTING INSTRUCTIONS ARE SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF
THE HARTFORD MUTUAL FUNDS, INC., ON BEHALF OF THE HARTFORD SMALL COMPANY FUND.

THESE VOTING INSTRUCTIONS WILL BE VOTED AS INSTRUCTED BY THE UNDERSIGNED IN THE
MATTER SET FORTH BELOW. IT IS UNDERSTOOD THAT IF NO CHOICE IS SPECIFIED, THESE
VOTING INSTRUCTIONS WILL BE VOTED "FOR" SUCH MATTER. UPON ALL OTHER MATTERS, THE
PERSONS NAMED AS PROXIES INTEND TO VOTE ACCORDING TO THEIR BEST JUDGMENT.


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This is to instruct you to vote the number of shares held by the Shareholders as
follows:

                 
[ ]     [ ]       [ ]     PROPOSAL TO APPROVE A SUB-ADVISORY AGREEMENT WITH
FOR   AGAINST   ABSTAIN   HARTFORD INVESTMENT MANAGEMENT COMPANY.



Furthermore, the undersigned appoints Tamara Fagely, Edward Macdonald and
Michael Phillips or each of them separately with power to act without the other
and with the right of substitution in each, their proxies, to vote, as described
herein, all shares of the Fund held by Shareholders on March 1, 2006 at the
Special Meeting of Shareholders (the "Meeting") to be held at the offices of
Hartford Investment Financial Services, LLC, 200 Hopmeadow Street, Simsbury,
Connecticut, on May 23, 2006 at 10:00 a.m, Eastern Time, and at any adjournments
or postponements thereof, upon the matters set forth above and in the Notice of
Special Meeting of Shareholders and Proxy Statement mailed to Shareholders
previously or concurrently with these voting instructions, with all powers the
undersigned would possess if present in person.

By executing these voting instructions, the undersigned revokes all previous
voting instructions with respect to the Meeting and acknowledges receipt of the
Notice of Special Meeting of Shareholders and Proxy Statement.


                                        Sincerely,


                                        ----------------------------------------
                                        [Name]
                                               ---------------------------------
                                        [Title]
                                                --------------------------------
                                        [Company Name]
                                                       -------------------------


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