<PAGE> PAGE 1
000 B000000 09/30/96
000 C000000 0000706155
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 Y
000 H000000 N
000 I000000 3.0.a
000 J000000 U
001 A000000 PIONEER MID-CAP FUND
001 B000000 811-3564
001 C000000 6177427825
002 A000000 60 STATE STREET
002 B000000 BOSTON
002 C000000 MA
002 D010000 02109
002 D020000 1820
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
007 C010100 1
007 C010200 2
007 C010300 3
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
008 A000001 PIONEERING MANAGEMENT CORPORATION
008 B000001 A
008 C000001 801-8255
008 D010001 BOSTON
008 D020001 MA
008 D030001 02109
008 D040001 1820
062 A000000 N
062 B000000 0.0
062 C000000 0.0
062 D000000 0.0
062 E000000 0.0
062 F000000 0.0
062 G000000 0.0
062 H000000 0.0
062 I000000 0.0
062 J000000 0.0
062 K000000 0.0
<PAGE> PAGE 2
062 L000000 0.0
062 M000000 0.0
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062 P000000 0.0
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071 A000000 687673
071 B000000 748820
071 C000000 914161
071 D000000 75
072 A000000 12
074 N000000 1022735
074 T000000 1013495
075 A000000 0
075 B000000 1012254
077 A000000 Y
080 A000000 ICI MUTUAL INS. CO.
080 C000000 25000
081 A000000 Y
081 B000000 49
082 A000000 N
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085 A000000 Y
085 B000000 Y
SIGNATURE ROBERT P. NAULT
TITLE ASST. SECRETARY
Incorporated by reference is the annual report for Pioneer Mid-Cap Fund, that
was filed on November 26 1996, Accension # 0000706155-96-000020. This is an
attachment for question 77 (c) on the annual N-SAR for Pioneer Mid-Cap Fund.
Page 27 -28 of the annual report contains the result of the definitive proxy
which was incorporated by reference with the Mid-Cap Fund N-SAR filed on May 29,
1996, Accension # 0000706155-96-000014.
