FIDELITY (LOGO) INVESTMENTS(registered trademark) FMR Corp.
82 Devonshire Street
Boston MA 02109-3614
617 563 7000
March 5, 1998
Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, N.W.
Washington, D.C. 20549
Attention: File Room
Re: Fidelity Income Fund (the trust):
Fidelity Advisor Mortgage Securities Fund (the fund)
File No. 2-92661 and 811-4085
_____________________________________________________________________
____
Ladies and Gentlemen:
Transmitted herewith pursuant to Rule 497(j) under the Securities Act
of 1933 is certification that the Prospectuses and Statement of
Additional Information with respect to the above referenced fund do
not differ from those filed in the most recent post-effective
amendment, which was filed electronically.
Very truly yours,
/s/Eric D. Roiter
Eric D. Roiter
Secretary