<PAGE> PAGE 1
000 A000000 06/30/97
000 C000000 100786
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 SELIGMAN CAPITAL FUND, INC.
001 B000000 811-1886
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002 A000000 100 PARK AVENUE
002 B000000 NEW YORK
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003 000000 N
004 000000 N
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007 C010400 4
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007 C010700 7
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008 B000001 A
008 C000001 801-15798
008 D010001 NEW YORK
008 D020001 NY
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011 A000001 SELIGMAN FINANCIAL SERVICES, INC.
011 B000001 8-25845
011 C010001 NEW YORK
011 C020001 NY
011 C030001 10017
012 A000001 SELIGMAN DATA CORP
012 B000001 84-1895
012 C010001 NEW YORK
012 C020001 NY
012 C030001 10017
013 A000001 DELOITTE & TOUCHE LLP
013 B010001 NEW YORK
013 B020001 NY
<PAGE> PAGE 2
013 B030001 10281
014 A000001 SELIGMAN SERVICES, INC.
014 B000001 8-47717
015 A000001 INVESTORS FIDUCIARY TRUST COMPANY
015 B000001 C
015 C010001 KANSAS CITY
015 C020001 MO
015 C030001 64105
015 C040001 1716
015 E010001 X
018 000000 Y
019 A000000 Y
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019 C000000 JWSELIGMAN
020 A000001 SMITH BARNEY INC.
020 B000001 13-1912900
020 C000001 47
020 A000002 LEHMAN BROTHERS INC.
020 B000002 13-2518466
020 C000002 22
020 A000003 MONTGOMERY SECURITIES
020 B000003 94-1701676
020 C000003 21
020 A000004 MERRILL LYNCH, PIERCE, FENNER & SMITH INC.
020 B000004 13-5674085
020 C000004 17
020 A000005 CREDIT SUISSE FIRST BOSTON CORPORATION
020 B000005 13-5659485
020 C000005 15
020 A000006 INSTINET CORPORATION
020 B000006 13-3443395
020 C000006 15
020 A000007 MORGAN STANLEY & CO., INC.
020 B000007 13-2655998
020 C000007 15
020 A000008 COWEN & CO.
020 B000008 13-5616116
020 C000008 13
020 A000009 GOLDMAN, SACHS & CO.
020 B000009 13-5108880
020 C000009 11
020 A000010 SALOMON BROTHERS INC.
020 B000010 13-3082694
020 C000010 10
021 000000 281
022 A000001 CANADIAN IMPERIAL BK OF COMMERCE-GRAND CAYMAN
022 B000001 13-1942440
022 C000001 302828
022 D000001 0
022 A000002 UBS-GRAND CAYMAN
022 B000002 13-2795530
<PAGE> PAGE 3
022 C000002 253368
022 D000002 546
022 A000003 BANK OF MONTREAL-TORONTO
022 B000003 13-4941092
022 C000003 251324
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022 A000004 FIRST NATIONAL BANK OF CHICAGO-GRAND CAYMAN
022 B000004 36-0899825
022 C000004 232991
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022 A000005 NATIONAL WESTMINSTER BANK-GRAND CAYMAN
022 B000005 13-5634601
022 C000005 196732
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022 B000006 13-2774726
022 C000006 150974
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022 A000007 ABN-AMRO BANK-GRAND CAYMAN
022 B000007 13-5268975
022 C000007 117946
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022 A000008 BANK OF NOVA SCOTIA-GRAND CAYMAN
022 B000008 03-8405740
022 C000008 56382
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022 A000009 STATE STREET BANK & TRUST CO.-GRAND CAYMAN
022 B000009 04-1867445
022 C000009 40134
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022 B000010 13-3036591
022 C000010 27001
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<PAGE> PAGE 4
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<PAGE> PAGE 5
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<PAGE> PAGE 6
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<PAGE> PAGE 7
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<PAGE> PAGE 8
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<PAGE> PAGE 9
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SIGNATURE THOMAS ROSE
TITLE TREASURER
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 001
<NAME> SELIGMAN CAPITAL FUND, INC. CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1997
<PERIOD-END> JUN-30-1997
<INVESTMENTS-AT-COST> 235487
<INVESTMENTS-AT-VALUE> 306297
<RECEIVABLES> 3665
<ASSETS-OTHER> 190
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 310152
<PAYABLE-FOR-SECURITIES> 8619
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1142
<TOTAL-LIABILITIES> 9761
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 197438
<SHARES-COMMON-STOCK> 15083<F1>
<SHARES-COMMON-PRIOR> 15867<F1>
<ACCUMULATED-NII-CURRENT> (521)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 32664
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 70810
<NET-ASSETS> 270093<F1>
<DIVIDEND-INCOME> 594<F1>
<INTEREST-INCOME> 403<F1>
<OTHER-INCOME> 98<F1>
<EXPENSES-NET> (1383)<F1>
<NET-INVESTMENT-INCOME> (288)<F1>
<REALIZED-GAINS-CURRENT> 27804
<APPREC-INCREASE-CURRENT> (1468)
<NET-CHANGE-FROM-OPS> 25915
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0<F1>
<DISTRIBUTIONS-OF-GAINS> 0<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3354<F1>
<NUMBER-OF-SHARES-REDEEMED> (4138)<F1>
<SHARES-REINVESTED> 0<F1>
<NET-CHANGE-IN-ASSETS> 16566
<ACCUMULATED-NII-PRIOR> (100)
<ACCUMULATED-GAINS-PRIOR> 4860
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 633<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> (1383)<F1>
<AVERAGE-NET-ASSETS> 262094<F1>
<PER-SHARE-NAV-BEGIN> 16.36<F1>
<PER-SHARE-NII> (0.02)<F1>
<PER-SHARE-GAIN-APPREC> 1.57<F1>
<PER-SHARE-DIVIDEND> 0<F1>
<PER-SHARE-DISTRIBUTIONS> 0<F1>
<RETURNS-OF-CAPITAL> 0<F1>
<PER-SHARE-NAV-END> 17.91<F1>
<EXPENSE-RATIO> 1.06<F1>
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
<FN>
<F1>Class A only. All other data are fund level.
</FN>
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 002
<NAME> SELIGMAN CAPITAL FUND, INC. CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1997
<PERIOD-END> JUN-30-1997
<INVESTMENTS-AT-COST> 235487
<INVESTMENTS-AT-VALUE> 306297
<RECEIVABLES> 3665
<ASSETS-OTHER> 190
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 310152
<PAYABLE-FOR-SECURITIES> 8619
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1142
<TOTAL-LIABILITIES> 9761
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 197438
<SHARES-COMMON-STOCK> 390<F1>
<SHARES-COMMON-PRIOR> 280<F1>
<ACCUMULATED-NII-CURRENT> (521)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 32664
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 70810
<NET-ASSETS> 6588<F1>
<DIVIDEND-INCOME> 13<F1>
<INTEREST-INCOME> 8<F1>
<OTHER-INCOME> 2<F1>
<EXPENSES-NET> (50)<F1>
<NET-INVESTMENT-INCOME> (27)<F1>
<REALIZED-GAINS-CURRENT> 27804
<APPREC-INCREASE-CURRENT> (1468)
<NET-CHANGE-FROM-OPS> 25915
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0<F1>
<DISTRIBUTIONS-OF-GAINS> 0<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 159<F1>
<NUMBER-OF-SHARES-REDEEMED> (49)<F1>
<SHARES-REINVESTED> 0<F1>
<NET-CHANGE-IN-ASSETS> 16566
<ACCUMULATED-NII-PRIOR> (100)
<ACCUMULATED-GAINS-PRIOR> 4860
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 13<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> (50)<F1>
<AVERAGE-NET-ASSETS> 5560<F1>
<PER-SHARE-NAV-BEGIN> 15.47<F1>
<PER-SHARE-NII> (0.08)<F1>
<PER-SHARE-GAIN-APPREC> 1.48<F1>
<PER-SHARE-DIVIDEND> 0<F1>
<PER-SHARE-DISTRIBUTIONS> 0<F1>
<RETURNS-OF-CAPITAL> 0<F1>
<PER-SHARE-NAV-END> 16.87<F1>
<EXPENSE-RATIO> 1.82<F1>
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
<FN>
<F1>Class B only. All other data are fund level.
</FN>
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 004
<NAME> SELIGMAN CAPITAL FUND, INC. CLASS D
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1997
<PERIOD-END> JUN-30-1997
<INVESTMENTS-AT-COST> 235487
<INVESTMENTS-AT-VALUE> 306297
<RECEIVABLES> 3665
<ASSETS-OTHER> 190
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 310152
<PAYABLE-FOR-SECURITIES> 8619
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1142
<TOTAL-LIABILITIES> 9761
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 197438
<SHARES-COMMON-STOCK> 1405<F1>
<SHARES-COMMON-PRIOR> 1291<F1>
<ACCUMULATED-NII-CURRENT> (521)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 32664
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 70810
<NET-ASSETS> 23710<F1>
<DIVIDEND-INCOME> 49<F1>
<INTEREST-INCOME> 34<F1>
<OTHER-INCOME> 8<F1>
<EXPENSES-NET> (197)<F1>
<NET-INVESTMENT-INCOME> (106)<F1>
<REALIZED-GAINS-CURRENT> 27804
<APPREC-INCREASE-CURRENT> (1468)
<NET-CHANGE-FROM-OPS> 25915
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0<F1>
<DISTRIBUTIONS-OF-GAINS> 0<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 482<F1>
<NUMBER-OF-SHARES-REDEEMED> (368)<F1>
<SHARES-REINVESTED> 0<F1>
<NET-CHANGE-IN-ASSETS> 16566
<ACCUMULATED-NII-PRIOR> (100)
<ACCUMULATED-GAINS-PRIOR> 4860
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 53<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> (197)<F1>
<AVERAGE-NET-ASSETS> 21815<F1>
<PER-SHARE-NAV-BEGIN> 15.47<F1>
<PER-SHARE-NII> (0.08)<F1>
<PER-SHARE-GAIN-APPREC> 1.48<F1>
<PER-SHARE-DIVIDEND> 0<F1>
<PER-SHARE-DISTRIBUTIONS> 0<F1>
<RETURNS-OF-CAPITAL> 0<F1>
<PER-SHARE-NAV-END> 16.87<F1>
<EXPENSE-RATIO> 1.82<F1>
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
</TABLE>
