<PAGE> PAGE 1
000 A000000 06/30/96
000 C000000 0000887147
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 U
001 A000000 T. ROWE PRICE MID-CAP GROWTH FUND, INC.
001 B000000 811-6665
001 C000000 4105472000
002 A000000 100 EAST PRATT STREET
002 B000000 BALTIMORE
002 C000000 MD
002 D010000 21202
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
015 A000001 STATE STREET BANK AND TRUST COMPANY
015 B000001 C
015 C010001 BOSTON
015 C020001 MA
015 C030001 02101
015 E010001 X
018 000000 Y
019 A000000 Y
019 B000000 73
019 C000000 TROWEPRICE
020 A000001 MORGAN STANLEY
020 B000001 13-2655998
020 C000001 67
020 A000002 BEAR STEARNS
020 B000002 13-3299429
020 C000002 41
020 A000003 GOLDMAN SACHS
020 B000003 13-5108880
020 C000003 40
020 A000004 DONALDSON LUFKIN
020 B000004 13-2741729
020 C000004 35
020 A000005 WILLIAM BLAIR
020 B000005 36-2214610
020 C000005 33
020 A000006 INSTINET
020 B000006 13-3443395
020 C000006 27
020 A000007 ALEX BROWN
<PAGE> PAGE 2
020 B000007 52-1319768
020 C000007 25
020 A000008 PAINE WEBBER
020 B000008 13-2638166
020 C000008 24
020 A000009 LEHMAN BROTHERS
020 B000009 13-2518466
020 C000009 22
020 A000010 SMITH BARNEY SHEARSON
020 B000010 13-1912900
020 C000010 21
021 000000 558
022 A000001 CHEMICAL BANK
022 B000001 13-4995650
022 C000001 501800
022 D000001 4230
022 A000002 CHASE
022 C000002 218164
022 D000002 0
022 A000003 FIRST BOSTON
022 B000003 13-5659485
022 C000003 78507
022 D000003 683
022 A000004 PRUDENTIAL SECURITIES
022 B000004 22-2347336
022 C000004 72222
022 D000004 0
022 A000005 LEHMAN BROTHERS
022 B000005 13-2518466
022 C000005 62794
022 D000005 9150
022 A000006 GOLDMAN SACHS
022 B000006 13-5108880
022 C000006 44912
022 D000006 3177
022 A000007 MORGAN STANLEY
022 B000007 13-2655998
022 C000007 33865
022 D000007 312
022 A000008 MERRILL LYNCH
022 B000008 13-5674085
022 C000008 23505
022 D000008 0
022 A000009 SMITH BARNEY SHEARSON
022 B000009 13-1912900
022 C000009 13141
022 D000009 0
022 A000010 ALEX BROWN
022 B000010 52-1319768
022 C000010 7603
022 D000010 2022
<PAGE> PAGE 3
023 C000000 1132439
023 D000000 29023
028 A010000 49969
028 A020000 0
028 A030000 0
028 A040000 7741
028 B010000 40789
028 B020000 0
028 B030000 0
028 B040000 8352
028 C010000 58344
028 C020000 0
028 C030000 0
028 C040000 8965
028 D010000 84529
028 D020000 0
028 D030000 0
028 D040000 7184
028 E010000 91737
028 E020000 0
028 E030000 0
028 E040000 7150
028 F010000 70825
028 F020000 0
028 F030000 0
028 F040000 11599
028 G010000 396193
028 G020000 0
028 G030000 0
028 G040000 50991
028 H000000 0
049 000000 N
050 000000 N
051 000000 N
052 000000 Y
053 A000000 N
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
062 L000000 0.0
062 M000000 0.0
062 N000000 0.0
062 O000000 0.0
<PAGE> PAGE 4
062 P000000 0.0
062 Q000000 0.0
062 R000000 0.0
070 A010000 Y
070 A020000 Y
070 B010000 Y
070 B020000 N
070 C010000 Y
070 C020000 N
070 D010000 Y
070 D020000 N
070 E010000 Y
070 E020000 N
070 F010000 Y
070 F020000 N
070 G010000 Y
070 G020000 N
070 H010000 Y
070 H020000 N
070 I010000 N
070 I020000 N
070 J010000 Y
070 J020000 N
070 K010000 Y
070 K020000 N
070 L010000 Y
070 L020000 Y
070 M010000 Y
070 M020000 Y
070 N010000 Y
070 N020000 N
070 O010000 Y
070 O020000 N
070 P010000 Y
070 P020000 N
070 Q010000 N
070 Q020000 N
070 R010000 N
070 R020000 N
071 A000000 390405
071 B000000 74570
071 C000000 405128
071 D000000 18
072 A000000 6
072 B000000 1357
072 C000000 1699
072 D000000 0
072 E000000 0
072 F000000 1557
072 G000000 0
072 H000000 0
<PAGE> PAGE 5
072 I000000 492
072 J000000 33
072 K000000 11
072 L000000 25
072 M000000 6
072 N000000 59
072 O000000 0
072 P000000 0
072 Q000000 31
072 R000000 8
072 S000000 3
072 T000000 0
072 U000000 0
072 V000000 0
072 W000000 7
072 X000000 2232
072 Y000000 0
072 Z000000 824
072AA000000 16912
072BB000000 0
072CC010000 27774
072CC020000 0
072DD010000 0
072DD020000 0
072EE000000 0
073 A010000 0.0000
073 A020000 0.0000
073 B000000 0.0000
073 C000000 0.0000
074 A000000 1
074 B000000 0
074 C000000 58576
074 D000000 0
074 E000000 0
074 F000000 598629
074 G000000 0
074 H000000 0
074 I000000 0
074 J000000 2000
074 K000000 0
074 L000000 4210
074 M000000 75
074 N000000 663491
074 O000000 7675
074 P000000 15
074 Q000000 0
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 1103
074 S000000 0
<PAGE> PAGE 6
074 T000000 654698
074 U010000 28748
074 U020000 0
074 V010000 22.77
074 V020000 0.00
074 W000000 0.0000
074 X000000 49750
074 Y000000 0
075 A000000 0
075 B000000 443745
076 000000 0.00
077 A000000 N
080 A000000 ICI MUTUAL INSURANCE COMPANY
080 B000000 N/A
080 C000000 60000
081 A000000 Y
081 B000000 128
082 B000000 0
086 A010000 0
086 A020000 0
086 B010000 0
086 B020000 0
086 C010000 0
086 C020000 0
086 D010000 0
086 D020000 0
086 E010000 0
086 E020000 0
086 F010000 0
086 F020000 0
SIGNATURE JAMES S. RIEPE
TITLE VICE PRESIDENT
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000887147
<NAME> T. ROWE PRICE MID-CAP GROWTH FUND, INC.
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1996
<PERIOD-END> JUN-30-1996
<INVESTMENTS-AT-COST> 582740
<INVESTMENTS-AT-VALUE> 657205
<RECEIVABLES> 6210
<ASSETS-OTHER> 76
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 663491
<PAYABLE-FOR-SECURITIES> 7675
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1118
<TOTAL-LIABILITIES> 8793
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 558789
<SHARES-COMMON-STOCK> 28748
<SHARES-COMMON-PRIOR> 13111
<ACCUMULATED-NII-CURRENT> 1434
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 20009
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 74466
<NET-ASSETS> 654698
<DIVIDEND-INCOME> 1699
<INTEREST-INCOME> 1357
<OTHER-INCOME> 0
<EXPENSES-NET> 2232
<NET-INVESTMENT-INCOME> 824
<REALIZED-GAINS-CURRENT> 16912
<APPREC-INCREASE-CURRENT> 27774
<NET-CHANGE-FROM-OPS> 45510
<EQUALIZATION> 592
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 17981
<NUMBER-OF-SHARES-REDEEMED> 2344
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 390711
<ACCUMULATED-NII-PRIOR> 18
<ACCUMULATED-GAINS-PRIOR> 3097
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1557
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2232
<AVERAGE-NET-ASSETS> 443745
<PER-SHARE-NAV-BEGIN> 20.13
<PER-SHARE-NII> .05
<PER-SHARE-GAIN-APPREC> 2.59
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 22.77
<EXPENSE-RATIO> 1.01
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>