<PAGE> PAGE 1
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011 B000001 8-25845
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012 C030001 10017
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<PAGE> PAGE 2
013 B030001 10281
014 A000001 SELIGMAN SERVICES, INC.
014 B000001 8-47717
015 A000001 INVESTORS FIDUCIARY TRUST COMPANY
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020 A000001 INSTINET CORPORATION
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020 C000001 1906
020 A000002 CREDIT SUISSE FIRST BOSTON CORPORATION
020 B000002 13-5659485
020 C000002 580
020 A000003 MERRILL LYNCH, PIERCE, FENNER & SMITH, INC.
020 B000003 13-5674085
020 C000003 471
020 A000004 LEHMAN BROTHERS, INC.
020 B000004 13-2518466
020 C000004 457
020 A000005 GOLDMAN, SACHS & CO.
020 B000005 13-5108880
020 C000005 418
020 A000006 SMITH BARNEY INC.
020 B000006 13-1912900
020 C000006 270
020 A000007 NATIONSBANK
020 B000007 75-0520130
020 C000007 227
020 A000008 ALLEN & CO.
020 B000008 13-6176976
020 C000008 226
020 A000009 MORGAN STANLEY & CO., INC.
020 B000009 13-2655998
020 C000009 208
020 A000010 FACTSET DATA SYSTEMS, INC.
020 B000010 13-2953224
020 C000010 185
021 000000 8948
<PAGE> PAGE 3
022 A000001 CREDIT COMMUNAL DE BELGIQUE-GRAND CAYMAN
022 B000001 13-3915825
022 C000001 5031818
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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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<PAGE> PAGE 10
SIGNATURE THOMAS ROSE
TITLE TREASURER
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 001
<NAME> SELIGMAN COMMUNICATIONS & INFORMATION FUND, INC. CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-END> DEC-31-1999
<INVESTMENTS-AT-COST> 6932252
<INVESTMENTS-AT-VALUE> 10683616
<RECEIVABLES> 62988
<ASSETS-OTHER> 5017
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 10751621
<PAYABLE-FOR-SECURITIES> 9311
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 35604
<TOTAL-LIABILITIES> 44915
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 6262511
<SHARES-COMMON-STOCK> 136617<F1>
<SHARES-COMMON-PRIOR> 126610<F1>
<ACCUMULATED-NII-CURRENT> (134)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 692965
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 3751364
<NET-ASSETS> 6454961<F1>
<DIVIDEND-INCOME> 6533<F1>
<INTEREST-INCOME> 6251<F1>
<OTHER-INCOME> 0<F1>
<EXPENSES-NET> (60335)<F1>
<NET-INVESTMENT-INCOME> (47551)<F1>
<REALIZED-GAINS-CURRENT> 2135821
<APPREC-INCREASE-CURRENT> 2446650
<NET-CHANGE-FROM-OPS> 4485718
<EQUALIZATION> (524061)
<DISTRIBUTIONS-OF-INCOME> 0<F1>
<DISTRIBUTIONS-OF-GAINS> (669482)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 119781<F1>
<NUMBER-OF-SHARES-REDEEMED> (124930)<F1>
<SHARES-REINVESTED> 15156<F1>
<NET-CHANGE-IN-ASSETS> 4554768
<ACCUMULATED-NII-PRIOR> (118)
<ACCUMULATED-GAINS-PRIOR> 306572
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 37281<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 60335<F1>
<AVERAGE-NET-ASSETS> 4350674<F1>
<PER-SHARE-NAV-BEGIN> 30.73<F1>
<PER-SHARE-NII> (0.38)<F1>
<PER-SHARE-GAIN-APPREC> 22.45<F1>
<PER-SHARE-DIVIDEND> 0<F1>
<PER-SHARE-DISTRIBUTIONS> (5.55)<F1>
<RETURNS-OF-CAPITAL> 0<F1>
<PER-SHARE-NAV-END> 47.25<F1>
<EXPENSE-RATIO> 1.39<F1>
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
<FN>
<F1>Class A only. All other data are fund level.
</FN>
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 002
<NAME> SELIGMAN COMMUNICATIONS & INFORMATION FUND, INC. CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-END> DEC-31-1999
<INVESTMENTS-AT-COST> 6932252
<INVESTMENTS-AT-VALUE> 10683616
<RECEIVABLES> 62988
<ASSETS-OTHER> 5017
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 10751621
<PAYABLE-FOR-SECURITIES> 9311
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 35604
<TOTAL-LIABILITIES> 44915
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 6262511
<SHARES-COMMON-STOCK> 49380<F1>
<SHARES-COMMON-PRIOR> 35935<F1>
<ACCUMULATED-NII-CURRENT> (134)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 692965
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 3751364
<NET-ASSETS> 2143570<F1>
<DIVIDEND-INCOME> 1940<F1>
<INTEREST-INCOME> 1856<F1>
<OTHER-INCOME> 0<F1>
<EXPENSES-NET> (27698)<F1>
<NET-INVESTMENT-INCOME> (23902)<F1>
<REALIZED-GAINS-CURRENT> 2135821
<APPREC-INCREASE-CURRENT> 2446650
<NET-CHANGE-FROM-OPS> 4485718
<EQUALIZATION> (524061)
<DISTRIBUTIONS-OF-INCOME> 0<F1>
<DISTRIBUTIONS-OF-GAINS> (229722)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 15456<F1>
<NUMBER-OF-SHARES-REDEEMED> (7604)<F1>
<SHARES-REINVESTED> 5593<F1>
<NET-CHANGE-IN-ASSETS> 4554768
<ACCUMULATED-NII-PRIOR> (118)
<ACCUMULATED-GAINS-PRIOR> 306572
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 11104<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 27698<F1>
<AVERAGE-NET-ASSETS> 1296582<F1>
<PER-SHARE-NAV-BEGIN> 28.75<F1>
<PER-SHARE-NII> (0.60)<F1>
<PER-SHARE-GAIN-APPREC> 20.81<F1>
<PER-SHARE-DIVIDEND> 0<F1>
<PER-SHARE-DISTRIBUTIONS> (5.55)<F1>
<RETURNS-OF-CAPITAL> 0<F1>
<PER-SHARE-NAV-END> 43.41<F1>
<EXPENSE-RATIO> 2.14<F1>
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
<FN>
<F1>Class B only. All other data are fund level.
</FN>
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 003
<NAME> SELIGMAN COMMUNICATIONS & INFORMATION FUND, INC. CLASS C
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 7-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> MAY-27-1999
<PERIOD-END> DEC-31-1999
<INVESTMENTS-AT-COST> 6932252
<INVESTMENTS-AT-VALUE> 10683616
<RECEIVABLES> 62988
<ASSETS-OTHER> 5017
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 10751621
<PAYABLE-FOR-SECURITIES> 9311
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 35604
<TOTAL-LIABILITIES> 44915
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 6262511
<SHARES-COMMON-STOCK> 2775<F1>
<SHARES-COMMON-PRIOR> 0<F1>
<ACCUMULATED-NII-CURRENT> (134)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 692965
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 3751364
<NET-ASSETS> 120402<F1>
<DIVIDEND-INCOME> 30<F1>
<INTEREST-INCOME> 29<F1>
<OTHER-INCOME> 0<F1>
<EXPENSES-NET> (409)<F1>
<NET-INVESTMENT-INCOME> (350)<F1>
<REALIZED-GAINS-CURRENT> 2135821
<APPREC-INCREASE-CURRENT> 2446650
<NET-CHANGE-FROM-OPS> 4485718
<EQUALIZATION> (524061)
<DISTRIBUTIONS-OF-INCOME> 0<F1>
<DISTRIBUTIONS-OF-GAINS> (8036)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2907<F1>
<NUMBER-OF-SHARES-REDEEMED> (332)<F1>
<SHARES-REINVESTED> 200<F1>
<NET-CHANGE-IN-ASSETS> 4554768
<ACCUMULATED-NII-PRIOR> (118)
<ACCUMULATED-GAINS-PRIOR> 306572
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 168<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 409<F1>
<AVERAGE-NET-ASSETS> 30036<F1>
<PER-SHARE-NAV-BEGIN> 29.39<F1>
<PER-SHARE-NII> (0.32)<F1>
<PER-SHARE-GAIN-APPREC> 19.87<F1>
<PER-SHARE-DIVIDEND> 0<F1>
<PER-SHARE-DISTRIBUTIONS> (5.55)<F1>
<RETURNS-OF-CAPITAL> 0<F1>
<PER-SHARE-NAV-END> 43.39<F1>
<EXPENSE-RATIO> 2.07<F1>
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
<FN>
<F1>Class C only. All other data are fund level.
</FN>
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 004
<NAME> SELIGMAN COMMUNICATIONS & INFORMATION FUND, INC. CLASS D
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-END> DEC-31-1999
<INVESTMENTS-AT-COST> 6932252
<INVESTMENTS-AT-VALUE> 10683616
<RECEIVABLES> 62988
<ASSETS-OTHER> 5017
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 10751621
<PAYABLE-FOR-SECURITIES> 9311
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 35604
<TOTAL-LIABILITIES> 44915
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 6262511
<SHARES-COMMON-STOCK> 45826<F1>
<SHARES-COMMON-PRIOR> 42762<F1>
<ACCUMULATED-NII-CURRENT> (134)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 692965
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 3751364
<NET-ASSETS> 1987773<F1>
<DIVIDEND-INCOME> 2073<F1>
<INTEREST-INCOME> 1984<F1>
<OTHER-INCOME> 0<F1>
<EXPENSES-NET> (29007)<F1>
<NET-INVESTMENT-INCOME> (24950)<F1>
<REALIZED-GAINS-CURRENT> 2135821
<APPREC-INCREASE-CURRENT> 2446650
<NET-CHANGE-FROM-OPS> 4485718
<EQUALIZATION> (524061)
<DISTRIBUTIONS-OF-INCOME> 0<F1>
<DISTRIBUTIONS-OF-GAINS> (221390)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 52090<F1>
<NUMBER-OF-SHARES-REDEEMED> (54430)<F1>
<SHARES-REINVESTED> 5404<F1>
<NET-CHANGE-IN-ASSETS> 4554768
<ACCUMULATED-NII-PRIOR> (118)
<ACCUMULATED-GAINS-PRIOR> 306572
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 11596<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 29007<F1>
<AVERAGE-NET-ASSETS> 1352885<F1>
<PER-SHARE-NAV-BEGIN> 28.72<F1>
<PER-SHARE-NII> (0.60)<F1>
<PER-SHARE-GAIN-APPREC> 20.81<F1>
<PER-SHARE-DIVIDEND> 0<F1>
<PER-SHARE-DISTRIBUTIONS> (5.55)<F1>
<RETURNS-OF-CAPITAL> 0<F1>
<PER-SHARE-NAV-END> 43.38<F1>
<EXPENSE-RATIO> 2.14<F1>
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
</TABLE>
INDEPENDENT AUDITORS' REPORT
The Board of Directors
Seligman Communications & Information Fund, Inc.
In planning and performing our audit of the financial statements of Seligman
Capital Fund, Inc. (the "Fund") for year ended December 31, 1999 (on which we
have issued our report dated February 11, 2000), we considered its internal
control, including control activities for safeguarding securities, in order to
determine our auditing procedures for the purpose of expressing our opinion on
the financial statements and to comply with the requirements of Form N-SAR, and
not to provide assurance on the Fund's internal control. The management of the
Fund is responsible for establishing and maintaining internal control. In
fulfilling this responsibility, estimates and judgments by management are
required to assess the expected benefits and related costs of controls.
Generally, controls that are relevant to an audit pertain to the entity's
objective of preparing financial statements for external purposes that are
fairly presented in conformity with generally accepted accounting principles.
Those controls include the safeguarding of assets against unauthorized
acquisition, use, or disposition. Because of inherent limitations in any
internal control, misstatements due to error or fraud may occur and not be
detected. Also, projections of any evaluation of internal control to future
periods are subject to the risk that the internal control may become inadequate
because of changes in conditions, or that the degree of compliance with policies
and procedures may deteriorate. Our consideration of the Fund's internal control
would not necessarily disclose all matters in the internal control that might be
material weaknesses under standards established by the American Institute of
Certified Public Accountants. A material weakness is a condition in which the
design or operation of one or more of the internal control components does not
reduce to a relatively low level the risk that misstatements caused by error or
fraud in amounts that would be material in relation to the financial statements
being audited may occur and not be detected within a timely period by employees
in the normal course of performing their assigned functions. However, we noted
no matters involving the Fund's internal control and its operation, including
controls for safeguarding securities, that we consider to be material weaknesses
as defined above as of December 31, 1999. This report is intended solely for the
information and use of management, and the Board of Directors of Seligman
Communications & Information Fund, Inc., and the Securities and Exchange
Commission and is not intended to be and should not be used by anyone other
than these specified parties.
Deloitte & Touche LLP
New York, New York
February 11, 2000
