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<PAGE> PAGE 11
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<PAGE> PAGE 12
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<PAGE> PAGE 13
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070 P020400 N
070 Q010400 N
070 Q020400 N
070 R010400 Y
070 R020400 N
071 A000400 86868
071 B000400 118987
071 C000400 191201
071 D000400 45
072 A000400 12
072 B000400 267
072 C000400 2110
072 D000400 0
072 E000400 -145
072 F000400 1982
072 G000400 0
072 H000400 0
072 I000400 502
072 J000400 147
072 K000400 28
<PAGE> PAGE 21
072 L000400 67
072 M000400 22
072 N000400 48
072 O000400 2
072 P000400 0
072 Q000400 0
072 R000400 44
072 S000400 10
072 T000400 1151
072 U000400 0
072 V000400 0
072 W000400 9
072 X000400 4012
072 Y000400 0
072 Z000400 -1780
072AA000400 27504
072BB000400 27117
072CC010400 16960
072CC020400 0
072DD010400 0
072DD020400 0
072EE000400 8637
073 A010400 0.0000
073 A020400 0.0000
073 B000400 0.4180
073 C000400 0.0000
074 A000400 12229
074 B000400 0
074 C000400 0
074 D000400 151
074 E000400 0
074 F000400 170216
074 G000400 0
074 H000400 0
074 I000400 0
074 J000400 4922
074 K000400 82
074 L000400 615
074 M000400 522
074 N000400 188737
074 O000400 1494
074 P000400 150
074 Q000400 0
074 R010400 0
074 R020400 0
074 R030400 0
074 R040400 2773
074 S000400 0
074 T000400 184320
074 U010400 10177
074 U020400 6857
<PAGE> PAGE 22
074 V010400 9.62
074 V020400 9.40
074 W000400 0.0000
074 X000400 12133
074 Y000400 0
075 A000400 0
075 B000400 197468
076 000400 0.00
028 A010500 1840
028 A020500 0
028 A030500 0
028 A040500 4228
028 B010500 2543
028 B020500 0
028 B030500 0
028 B040500 5479
028 C010500 4985
028 C020500 0
028 C030500 0
028 C040500 7505
028 D010500 1241
028 D020500 0
028 D030500 0
028 D040500 3081
028 E010500 2792
028 E020500 0
028 E030500 0
028 E040500 3973
028 F010500 4494
028 F020500 0
028 F030500 0
028 F040500 4864
028 G010500 17895
028 G020500 0
028 G030500 0
028 G040500 29130
028 H000500 840
029 000500 Y
030 A000500 101
030 B000500 4.75
030 C000500 0.00
031 A000500 11
031 B000500 0
032 000500 90
033 000500 0
034 000500 Y
035 000500 208
036 A000500 N
036 B000500 0
042 A000500 0
042 B000500 0
<PAGE> PAGE 23
042 C000500 0
042 D000500 100
042 E000500 0
042 F000500 0
042 G000500 0
042 H000500 0
043 000500 554
044 000500 0
045 000500 Y
046 000500 Y
047 000500 Y
048 000500 1.250
048 A010500 0
048 A020500 0.000
048 B010500 0
048 B020500 0.000
048 C010500 0
048 C020500 0.000
048 D010500 0
048 D020500 0.000
048 E010500 0
048 E020500 0.000
048 F010500 0
048 F020500 0.000
048 G010500 0
048 G020500 0.000
048 H010500 0
048 H020500 0.000
048 I010500 0
048 I020500 0.000
048 J010500 0
048 J020500 0.000
048 K010500 0
048 K020500 0.000
055 A000500 N
055 B000500 N
056 000500 Y
057 000500 N
063 A000500 0
063 B000500 0.0
066 A000500 Y
066 B000500 N
066 C000500 Y
066 D000500 N
066 E000500 N
066 F000500 N
066 G000500 N
067 000500 N
068 A000500 N
068 B000500 Y
069 000500 N
<PAGE> PAGE 24
070 A010500 Y
070 A020500 N
070 B010500 N
070 B020500 N
070 C010500 N
070 C020500 N
070 D010500 N
070 D020500 N
070 E010500 N
070 E020500 N
070 F010500 N
070 F020500 N
070 G010500 N
070 G020500 N
070 H010500 N
070 H020500 N
070 I010500 N
070 I020500 N
070 J010500 Y
070 J020500 Y
070 K010500 Y
070 K020500 Y
070 L010500 Y
070 L020500 Y
070 M010500 Y
070 M020500 Y
070 N010500 Y
070 N020500 N
070 O010500 Y
070 O020500 N
070 P010500 Y
070 P020500 N
070 Q010500 N
070 Q020500 N
070 R010500 Y
070 R020500 N
071 A000500 69700
071 B000500 80786
071 C000500 74075
071 D000500 94
072 A000500 12
072 B000500 441
072 C000500 1294
072 D000500 0
072 E000500 -407
072 F000500 1034
072 G000500 0
072 H000500 0
072 I000500 312
072 J000500 118
072 K000500 15
<PAGE> PAGE 25
072 L000500 27
072 M000500 18
072 N000500 57
072 O000500 1
072 P000500 0
072 Q000500 0
072 R000500 47
072 S000500 10
072 T000500 554
072 U000500 0
072 V000500 0
072 W000500 5
072 X000500 2198
072 Y000500 0
072 Z000500 -870
072AA000500 8563
072BB000500 27829
072CC010500 0
072CC020500 4665
072DD010500 0
072DD020500 0
072EE000500 0
073 A010500 0.0000
073 A020500 0.0000
073 B000500 0.0000
073 C000500 0.0000
074 A000500 5059
074 B000500 0
074 C000500 0
074 D000500 113
074 E000500 0
074 F000500 50800
074 G000500 0
074 H000500 0
074 I000500 0
074 J000500 951
074 K000500 46
074 L000500 277
074 M000500 2
074 N000500 57248
074 O000500 2881
074 P000500 54
074 Q000500 0
074 R010500 0
074 R020500 0
074 R030500 0
074 R040500 321
074 S000500 0
074 T000500 53992
074 U010500 4689
074 U020500 2684
<PAGE> PAGE 26
074 V010500 5.18
074 V020500 5.09
074 W000500 0.0000
074 X000500 9357
074 Y000500 0
075 A000500 0
075 B000500 82389
076 000500 0.00
SIGNATURE THOMAS G. ROSE
TITLE TREASURER
PROXY RESULTS
Shareholders of each Series voted on the following proposals at a Special
Meeting of Shareholders held on June 30, 1998, in New York, New York. The
description of each proposal and number of shares voted are stated below. The
shareholders of all five Series voted collectively in respect of the election of
Directors and the ratification of the selection of independent auditors. In
respect of the proposals relating to the interim and new subadvisory agreements,
the shareholders of each Series voted separately. Each Director was elected, the
selection of Deloitte & Touche LLP as auditors was ratified, and the interim and
new subadvisory agreements were approved.
ELECTION OF DIRECTORS:
For Withheld
---- -----------
John R. Galvin 105,497,129 1,987,168
Alice S. Ilchman 105,505,135 1,979,161
Frank A. McPherson 105,505,057 1,979,239
John E. Merow 105,504,427 1,979,869
Betsy S. Michel 105,501,319 1,982,977
William C. Morris 105,508,287 1,976,009
James C. Pitney 105,493,493 1,990,804
James Q. Riordan 105,498,612 1,985,684
Richard R. Schmaltz 105,505,948 1,978,349
Robert L. Shafer 105,504,103 1,980,194
James N. Whitson 105,508,491 1,975,806
Brian T. Zino 105,505,870 1,978,427
RATIFICATION OF DELOITTE & TOUCHE LLP AS AUDITORS:
<TABLE>
<CAPTION>
For Against Abstain
---- ----------- ---------
<S> <C> <C> <C>
103,834,744 828,074 2,821,124
APPROVAL OF INTERIM SUBADVISORY AGREEMENTS
BETWEEN J. & W. SELIGMAN & CO. INCORPORATED
AND SELIGMAN HENDERSON CO.:
Seligman Henderson International Fund 2,592,848 8,037 129,431
Seligman Henderson Emerging Markets Growth Fund 6,848,574 106,520 246,368
Seligman Henderson Global Growth Opportunites Fund 13,627,795 126,041 551,941
Seligman Henderson Global Smaller Companies Fund 42,166,124 466,464 1,501,383
Seligman Henderson Global Technology Fund 36,921,480 535,865 1,655,339
APPROVAL OF NEW SUBADVISORY AGREEMENT
BETWEEN J. & W. SELIGMAN & CO. INCORPORATED
AND HENDERSON INVESTMENT MANAGEMENT LIMITED,
EFFECTIVE JULY 1, 1998:
Seligman Henderson International Fund 2,591,707 9,988 128,623
Seligman Henderson Emerging Markets Growth Fund 6,848,518 104,254 248,682
Seligman Henderson Global Growth Opportunites Fund 13,624,535 139,654 541,561
Seligman Henderson Global Smaller Companies Fund 42,320,799 466,271 1,346,898
Seligman Henderson Global Technology Fund 36,895,609 551,029 1,666,034
</TABLE>
INDEPENDENT AUDITORS' REPORT
The Board of Directors
Seligman Henderson Global Fund Series, Inc.
In planning and performing our audit of the financial statements of Seligman
Henderson Global Fund Series, Inc. (the "Company") (including the International
Fund, Emerging Markets Growth Fund, Global Growth Opportunities Fund, Global
Smaller Companies Fund and Global Technology Fund) for the year ended October
31, 1998 (on which we have issued our report dated December 4, 1998), 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 Company's
internal control.
The management of the Company 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 internal control, errors or fraud may occur
and not be detected. Also, projection of any evaluation of internal control to
future periods is subject to the risk that it may be become inadequate because
of changes in conditions or that the effectiveness of the design and operation
may deteriorate.
Our consideration of the Company's internal control would not necessarily
disclose all matters in 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 errors 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 Company's
internal control and its operation, including controls for safeguarding
securities, that we consider to be material weaknesses as defined above as of
October 31, 1998.
This report is intended solely for the information and use of management, the
Board of Directors of Seligman Henderson Global Fund Series, Inc., and the
Securities Exchange Commission.
/s/ Deloitte & Touche LLP
December 4, 1998
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER>011
<NAME> SELIGMAN HENDERSON INTERNATIONAL FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 70023
<INVESTMENTS-AT-VALUE> 84619
<RECEIVABLES> 4258
<ASSETS-OTHER> 10424
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 99301
<PAYABLE-FOR-SECURITIES> 6199
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1661
<TOTAL-LIABILITIES> 7860
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 76826
<SHARES-COMMON-STOCK> 2485<F1>
<SHARES-COMMON-PRIOR> 2572<F1>
<ACCUMULATED-NII-CURRENT> (12)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 955
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 13672
<NET-ASSETS> 44121<F1>
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<INTEREST-INCOME> 108<F1>
<OTHER-INCOME> (20)<F1>
<EXPENSES-NET> (816)<F1>
<NET-INVESTMENT-INCOME> 54<F1>
<REALIZED-GAINS-CURRENT> 1670
<APPREC-INCREASE-CURRENT> 4066
<NET-CHANGE-FROM-OPS> 5424
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<DISTRIBUTIONS-OF-GAINS> (3074)<F1>
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<NUMBER-OF-SHARES-SOLD> 3942<F1>
<NUMBER-OF-SHARES-REDEEMED> (4192)<F1>
<SHARES-REINVESTED> 163<F1>
<NET-CHANGE-IN-ASSETS> (1993)
<ACCUMULATED-NII-PRIOR> (12)
<ACCUMULATED-GAINS-PRIOR> 4298
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 462<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 816<F1>
<AVERAGE-NET-ASSETS> 46130<F1>
<PER-SHARE-NAV-BEGIN> 17.92<F1>
<PER-SHARE-NII> 0.03<F1>
<PER-SHARE-GAIN-APPREC> 1.02<F1>
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<FN>
<F1>Class A only. All other data are fund level.
</FN>
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER>012
<NAME> SELIGMAN HENDERSON INTERNATIONAL FUND CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 70023
<INVESTMENTS-AT-VALUE> 84619
<RECEIVABLES> 4258
<ASSETS-OTHER> 10424
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 99301
<PAYABLE-FOR-SECURITIES> 6199
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1661
<TOTAL-LIABILITIES> 7860
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 76826
<SHARES-COMMON-STOCK> 581<F1>
<SHARES-COMMON-PRIOR> 367<F1>
<ACCUMULATED-NII-CURRENT> (12)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 955
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 13672
<NET-ASSETS> 9835<F1>
<DIVIDEND-INCOME> 142<F1>
<INTEREST-INCOME> 16<F1>
<OTHER-INCOME> (4)<F1>
<EXPENSES-NET> (217)<F1>
<NET-INVESTMENT-INCOME> (63)<F1>
<REALIZED-GAINS-CURRENT> 1670
<APPREC-INCREASE-CURRENT> 4066
<NET-CHANGE-FROM-OPS> 5424
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (443)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 548<F1>
<NUMBER-OF-SHARES-REDEEMED> (361)<F1>
<SHARES-REINVESTED> 27<F1>
<NET-CHANGE-IN-ASSETS> (1993)
<ACCUMULATED-NII-PRIOR> (12)
<ACCUMULATED-GAINS-PRIOR> 4298
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 85<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 217<F1>
<AVERAGE-NET-ASSETS> 8498<F1>
<PER-SHARE-NAV-BEGIN> 17.30<F1>
<PER-SHARE-NII> (0.12)<F1>
<PER-SHARE-GAIN-APPREC> 0.97<F1>
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (1.22)<F1>
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 16.93<F1>
<EXPENSE-RATIO> 2.55<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>014
<NAME> SELIGMAN HENDERSON INTERNATIONAL FUND CLASS D
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 70023
<INVESTMENTS-AT-VALUE> 84619
<RECEIVABLES> 4258
<ASSETS-OTHER> 10424
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 99301
<PAYABLE-FOR-SECURITIES> 6199
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1661
<TOTAL-LIABILITIES> 7860
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 76826
<SHARES-COMMON-STOCK> 2215<F1>
<SHARES-COMMON-PRIOR> 2368<F1>
<ACCUMULATED-NII-CURRENT> (12)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 955
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 13672
<NET-ASSETS> 37485<F1>
<DIVIDEND-INCOME> 694<F1>
<INTEREST-INCOME> 65<F1>
<OTHER-INCOME> (18)<F1>
<EXPENSES-NET> (1044)<F1>
<NET-INVESTMENT-INCOME> (303)<F1>
<REALIZED-GAINS-CURRENT> 1670
<APPREC-INCREASE-CURRENT> 4066
<NET-CHANGE-FROM-OPS> 5424
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (2927)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2130<F1>
<NUMBER-OF-SHARES-REDEEMED> (2444)<F1>
<SHARES-REINVESTED> 161<F1>
<NET-CHANGE-IN-ASSETS> (1993)
<ACCUMULATED-NII-PRIOR> (12)
<ACCUMULATED-GAINS-PRIOR> 4298
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 408<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1044<F1>
<AVERAGE-NET-ASSETS> 40837<F1>
<PER-SHARE-NAV-BEGIN> 17.30<F1>
<PER-SHARE-NII> (0.12)<F1>
<PER-SHARE-GAIN-APPREC> 0.97<F1>
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (1.22)<F1>
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 16.93<F1>
<EXPENSE-RATIO> 2.55<F1>
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER>021
<NAME> SELIGMAN HENDERSON GLOBAL SMALLER COS FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 761941
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<ACCUMULATED-NII-CURRENT> (11)
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<ACCUMULATED-NET-GAINS> (18060)
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<ACCUM-APPREC-OR-DEPREC> 28239
<NET-ASSETS> 374890<F1>
<DIVIDEND-INCOME> 4297<F1>
<INTEREST-INCOME> 539<F1>
<OTHER-INCOME> (10)<F1>
<EXPENSES-NET> (6701)<F1>
<NET-INVESTMENT-INCOME> (1875)<F1>
<REALIZED-GAINS-CURRENT> (16263)
<APPREC-INCREASE-CURRENT> (31823)
<NET-CHANGE-FROM-OPS> (57162)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (17124)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 24447<F1>
<NUMBER-OF-SHARES-REDEEMED> (26762)<F1>
<SHARES-REINVESTED> 1086<F1>
<NET-CHANGE-IN-ASSETS> (182244)
<ACCUMULATED-NII-PRIOR> (10)
<ACCUMULATED-GAINS-PRIOR> 36841
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 4060<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6701<F1>
<AVERAGE-NET-ASSETS> 405886<F1>
<PER-SHARE-NAV-BEGIN> 15.62<F1>
<PER-SHARE-NII> (0.07)<F1>
<PER-SHARE-GAIN-APPREC> (0.81)<F1>
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (.63)<F1>
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 14.11<F1>
<EXPENSE-RATIO> 1.65<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>022
<NAME> SELIGMAN HENDERSON GLOBAL SMALLER COS FUND CLASS B
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<S> <C>
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<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
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<PAID-IN-CAPITAL-COMMON> 860210
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<ACCUMULATED-NII-CURRENT> (11)
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<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 28239
<NET-ASSETS> 222496<F1>
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<EXPENSES-NET> (6093)<F1>
<NET-INVESTMENT-INCOME> (3064)<F1>
<REALIZED-GAINS-CURRENT> (16263)
<APPREC-INCREASE-CURRENT> (31823)
<NET-CHANGE-FROM-OPS> (57162)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (10275)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3249<F1>
<NUMBER-OF-SHARES-REDEEMED> (3863)<F1>
<SHARES-REINVESTED> 677<F1>
<NET-CHANGE-IN-ASSETS> (182244)
<ACCUMULATED-NII-PRIOR> (10)
<ACCUMULATED-GAINS-PRIOR> 36841
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2535<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6093<F1>
<AVERAGE-NET-ASSETS> 253431<F1>
<PER-SHARE-NAV-BEGIN> 15.04<F1>
<PER-SHARE-NII> (0.18)<F1>
<PER-SHARE-GAIN-APPREC> (0.77)<F1>
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (.63)<F1>
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 13.46<F1>
<EXPENSE-RATIO> 2.41<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>024
<NAME> SELIGMAN HENDERSON GLOBAL SMALLER COS FUND CLASS D
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 761941
<INVESTMENTS-AT-VALUE> 797114
<RECEIVABLES> 49424
<ASSETS-OTHER> 53240
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 899778
<PAYABLE-FOR-SECURITIES> 15364
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 14036
<TOTAL-LIABILITIES> 29400
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 860210
<SHARES-COMMON-STOCK> 20273<F1>
<SHARES-COMMON-PRIOR> 24624<F1>
<ACCUMULATED-NII-CURRENT> (11)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (18060)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 28239
<NET-ASSETS> 272992<F1>
<DIVIDEND-INCOME> 3605<F1>
<INTEREST-INCOME> 450<F1>
<OTHER-INCOME> (8)<F1>
<EXPENSES-NET> (8184)<F1>
<NET-INVESTMENT-INCOME> (4137)<F1>
<REALIZED-GAINS-CURRENT> (16263)
<APPREC-INCREASE-CURRENT> (31823)
<NET-CHANGE-FROM-OPS> (57162)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (15358)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 5270<F1>
<NUMBER-OF-SHARES-REDEEMED> (10630)<F1>
<SHARES-REINVESTED> 1009<F1>
<NET-CHANGE-IN-ASSETS> (182244)
<ACCUMULATED-NII-PRIOR> (10)
<ACCUMULATED-GAINS-PRIOR> 36841
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 3401<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 8184<F1>
<AVERAGE-NET-ASSETS> 340277<F1>
<PER-SHARE-NAV-BEGIN> 15.05<F1>
<PER-SHARE-NII> (0.18)<F1>
<PER-SHARE-GAIN-APPREC> (0.77)<F1>
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (.63)<F1>
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 13.47<F1>
<EXPENSE-RATIO> 2.41<F1>
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER>031
<NAME> SELIGMAN HENDERSON GLOBAL TECHNOLOGY FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 612547
<INVESTMENTS-AT-VALUE> 675071
<RECEIVABLES> 125333
<ASSETS-OTHER> 99718
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 900122
<PAYABLE-FOR-SECURITIES> 172405
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 9159
<TOTAL-LIABILITIES> 181564
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 659032
<SHARES-COMMON-STOCK> 38147<F1>
<SHARES-COMMON-PRIOR> 38526<F1>
<ACCUMULATED-NII-CURRENT> (8)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 59534
<NET-ASSETS> 475951<F1>
<DIVIDEND-INCOME> 2003<F1>
<INTEREST-INCOME> 1438<F1>
<OTHER-INCOME> (209)<F1>
<EXPENSES-NET> (9125)<F1>
<NET-INVESTMENT-INCOME> (5893)<F1>
<REALIZED-GAINS-CURRENT> 46872
<APPREC-INCREASE-CURRENT> (39868)
<NET-CHANGE-FROM-OPS> (3992)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0<F1>
<DISTRIBUTIONS-OF-GAINS> (99536)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 19325<F1>
<NUMBER-OF-SHARES-REDEEMED> (26894)<F1>
<SHARES-REINVESTED> 7190<F1>
<NET-CHANGE-IN-ASSETS> (150627)
<ACCUMULATED-NII-PRIOR> (6)
<ACCUMULATED-GAINS-PRIOR> 130196
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 5462<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 9125<F1>
<AVERAGE-NET-ASSETS> 546309<F1>
<PER-SHARE-NAV-BEGIN> 15.14<F1>
<PER-SHARE-NII> (0.14)<F1>
<PER-SHARE-GAIN-APPREC> 0.07<F1>
<PER-SHARE-DIVIDEND> 0<F1>
<PER-SHARE-DISTRIBUTIONS> (2.59)<F1>
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.48<F1>
<EXPENSE-RATIO> 1.67<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>032
<NAME> SELIGMAN HENDERSON GLOBAL TECHNOLOGY FUND CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 612547
<INVESTMENTS-AT-VALUE> 675071
<RECEIVABLES> 125333
<ASSETS-OTHER> 99718
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 900122
<PAYABLE-FOR-SECURITIES> 172405
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 9159
<TOTAL-LIABILITIES> 181564
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 659032
<SHARES-COMMON-STOCK> 4889<F1>
<SHARES-COMMON-PRIOR> 3600<F1>
<ACCUMULATED-NII-CURRENT> (8)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 59534
<NET-ASSETS> 58575<F1>
<DIVIDEND-INCOME> 224<F1>
<INTEREST-INCOME> 158<F1>
<OTHER-INCOME> (23)<F1>
<EXPENSES-NET> (1453)<F1>
<NET-INVESTMENT-INCOME> (1094)<F1>
<REALIZED-GAINS-CURRENT> 46872
<APPREC-INCREASE-CURRENT> (39868)
<NET-CHANGE-FROM-OPS> (3992)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0<F1>
<DISTRIBUTIONS-OF-GAINS> (9667)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1534<F1>
<NUMBER-OF-SHARES-REDEEMED> (956)<F1>
<SHARES-REINVESTED> 711<F1>
<NET-CHANGE-IN-ASSETS> (150627)
<ACCUMULATED-NII-PRIOR> (6)
<ACCUMULATED-GAINS-PRIOR> 130196
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 599<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1453<F1>
<AVERAGE-NET-ASSETS> 59898<F1>
<PER-SHARE-NAV-BEGIN> 14.73<F1>
<PER-SHARE-NII> (0.23)<F1>
<PER-SHARE-GAIN-APPREC> 0.07<F1>
<PER-SHARE-DIVIDEND> 0<F1>
<PER-SHARE-DISTRIBUTIONS> (2.59)<F1>
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.98<F1>
<EXPENSE-RATIO> 2.43<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>034
<NAME> SELIGMAN HENDERSON GLOBAL TECHNOLOGY FUND CLASS D
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 612547
<INVESTMENTS-AT-VALUE> 675071
<RECEIVABLES> 125333
<ASSETS-OTHER> 99718
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 900122
<PAYABLE-FOR-SECURITIES> 172405
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 9159
<TOTAL-LIABILITIES> 181564
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 659032
<SHARES-COMMON-STOCK> 15383<F1>
<SHARES-COMMON-PRIOR> 15805<F1>
<ACCUMULATED-NII-CURRENT> (8)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 59534
<NET-ASSETS> 184032<F1>
<DIVIDEND-INCOME> 799<F1>
<INTEREST-INCOME> 575<F1>
<OTHER-INCOME> (83)<F1>
<EXPENSES-NET> (5300)<F1>
<NET-INVESTMENT-INCOME> (4009)<F1>
<REALIZED-GAINS-CURRENT> 46872
<APPREC-INCREASE-CURRENT> (39868)
<NET-CHANGE-FROM-OPS> (3992)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0<F1>
<DISTRIBUTIONS-OF-GAINS> (41021)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 10766<F1>
<NUMBER-OF-SHARES-REDEEMED> (14259)<F1>
<SHARES-REINVESTED> 3071<F1>
<NET-CHANGE-IN-ASSETS> (150627)
<ACCUMULATED-NII-PRIOR> (6)
<ACCUMULATED-GAINS-PRIOR> 130196
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2186<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 5300<F1>
<AVERAGE-NET-ASSETS> 218521<F1>
<PER-SHARE-NAV-BEGIN> 14.73<F1>
<PER-SHARE-NII> (0.23)<F1>
<PER-SHARE-GAIN-APPREC> 0.05<F1>
<PER-SHARE-DIVIDEND> 0<F1>
<PER-SHARE-DISTRIBUTIONS> (2.59)<F1>
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.96<F1>
<EXPENSE-RATIO> 2.43<F1>
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER>041
<NAME> SELIGMAN HENDERSON GLOBAL GROWTH OPPORTUNITIES FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 122096
<INVESTMENTS-AT-VALUE> 170367
<RECEIVABLES> 5619
<ASSETS-OTHER> 12751
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 188737
<PAYABLE-FOR-SECURITIES> 1494
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2923
<TOTAL-LIABILITIES> 4417
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 137081
<SHARES-COMMON-STOCK> 10177<F1>
<SHARES-COMMON-PRIOR> 11847<F1>
<ACCUMULATED-NII-CURRENT> (3)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 387
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 46855
<NET-ASSETS> 97947<F1>
<DIVIDEND-INCOME> 1163<F1>
<INTEREST-INCOME> 146<F1>
<OTHER-INCOME> (80)<F1>
<EXPENSES-NET> (1836)<F1>
<NET-INVESTMENT-INCOME> (607)<F1>
<REALIZED-GAINS-CURRENT> 387
<APPREC-INCREASE-CURRENT> 16960
<NET-CHANGE-FROM-OPS> 15567
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (4861)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3584<F1>
<NUMBER-OF-SHARES-REDEEMED> (5755)<F1>
<SHARES-REINVESTED> 501<F1>
<NET-CHANGE-IN-ASSETS> (8351)
<ACCUMULATED-NII-PRIOR> (3)
<ACCUMULATED-GAINS-PRIOR> 7210
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1092<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1836<F1>
<AVERAGE-NET-ASSETS> 109231<F1>
<PER-SHARE-NAV-BEGIN> 9.20<F1>
<PER-SHARE-NII> (0.05)<F1>
<PER-SHARE-GAIN-APPREC> 0.89<F1>
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.42)<F1>
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.62<F1>
<EXPENSE-RATIO> 1.68<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>042
<NAME> SELIGMAN HENDERSON GLOBAL GROWTH OPPORTUNITIES FUND CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 122096
<INVESTMENTS-AT-VALUE> 170367
<RECEIVABLES> 5619
<ASSETS-OTHER> 12751
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 188737
<PAYABLE-FOR-SECURITIES> 1494
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2923
<TOTAL-LIABILITIES> 4417
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 137081
<SHARES-COMMON-STOCK> 2333<F1>
<SHARES-COMMON-PRIOR> 2130<F1>
<ACCUMULATED-NII-CURRENT> (3)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 387
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 46855
<NET-ASSETS> 21930<F1>
<DIVIDEND-INCOME> 227<F1>
<INTEREST-INCOME> 29<F1>
<OTHER-INCOME> (16)<F1>
<EXPENSES-NET> (524)<F1>
<NET-INVESTMENT-INCOME> (284)<F1>
<REALIZED-GAINS-CURRENT> 387
<APPREC-INCREASE-CURRENT> 16960
<NET-CHANGE-FROM-OPS> 15567
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (875)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 857<F1>
<NUMBER-OF-SHARES-REDEEMED> (740)<F1>
<SHARES-REINVESTED> 86<F1>
<NET-CHANGE-IN-ASSETS> (8351)
<ACCUMULATED-NII-PRIOR> (3)
<ACCUMULATED-GAINS-PRIOR> 7210
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 214<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 524<F1>
<AVERAGE-NET-ASSETS> 21399<F1>
<PER-SHARE-NAV-BEGIN> 9.06<F1>
<PER-SHARE-NII> (0.12)<F1>
<PER-SHARE-GAIN-APPREC> 0.88<F1>
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.42)<F1>
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.40<F1>
<EXPENSE-RATIO> 2.44<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>044
<NAME> SELIGMAN HENDERSON GLOBAL GROWTH OPPORTUNITIES FUND CLASS D
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 122096
<INVESTMENTS-AT-VALUE> 170367
<RECEIVABLES> 5619
<ASSETS-OTHER> 12751
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 188737
<PAYABLE-FOR-SECURITIES> 1494
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2923
<TOTAL-LIABILITIES> 4417
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 137081
<SHARES-COMMON-STOCK> 6857<F1>
<SHARES-COMMON-PRIOR> 7093<F1>
<ACCUMULATED-NII-CURRENT> (3)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 387
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 46855
<NET-ASSETS> 64443<F1>
<DIVIDEND-INCOME> 720<F1>
<INTEREST-INCOME> 92<F1>
<OTHER-INCOME> (49)<F1>
<EXPENSES-NET> (1652)<F1>
<NET-INVESTMENT-INCOME> (889)<F1>
<REALIZED-GAINS-CURRENT> 387
<APPREC-INCREASE-CURRENT> 16960
<NET-CHANGE-FROM-OPS> 15567
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (2901)<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1953<F1>
<NUMBER-OF-SHARES-REDEEMED> (2492)<F1>
<SHARES-REINVESTED> 303<F1>
<NET-CHANGE-IN-ASSETS> (8351)
<ACCUMULATED-NII-PRIOR> (3)
<ACCUMULATED-GAINS-PRIOR> 7210
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 676<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1652<F1>
<AVERAGE-NET-ASSETS> 67590<F1>
<PER-SHARE-NAV-BEGIN> 9.06<F1>
<PER-SHARE-NII> (0.12)<F1>
<PER-SHARE-GAIN-APPREC> 0.88<F1>
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.42)<F1>
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.40<F1>
<EXPENSE-RATIO> 2.44<F1>
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER>051
<NAME> SELIGMAN HENDERSON EMERGING MARKETS GROWTH FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 55804
<INVESTMENTS-AT-VALUE> 50913
<RECEIVABLES> 1275
<ASSETS-OTHER> 5060
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 57248
<PAYABLE-FOR-SECURITIES> 2881
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 375
<TOTAL-LIABILITIES> 3256
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 81771
<SHARES-COMMON-STOCK> 4689<F1>
<SHARES-COMMON-PRIOR> 6002<F1>
<ACCUMULATED-NII-CURRENT> (2)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (22889)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (4888)
<NET-ASSETS> 24294<F1>
<DIVIDEND-INCOME> 555<F1>
<INTEREST-INCOME> 189<F1>
<OTHER-INCOME> (174)<F1>
<EXPENSES-NET> (785)<F1>
<NET-INVESTMENT-INCOME> (215)<F1>
<REALIZED-GAINS-CURRENT> (19266)
<APPREC-INCREASE-CURRENT> (4665)
<NET-CHANGE-FROM-OPS> (24801)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 4467<F1>
<NUMBER-OF-SHARES-REDEEMED> (5780)<F1>
<SHARES-REINVESTED> 0<F1>
<NET-CHANGE-IN-ASSETS> (50147)
<ACCUMULATED-NII-PRIOR> (1)
<ACCUMULATED-GAINS-PRIOR> (3622)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 443<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 785<F1>
<AVERAGE-NET-ASSETS> 35453<F1>
<PER-SHARE-NAV-BEGIN> 7.34<F1>
<PER-SHARE-NII> (0.01)<F1>
<PER-SHARE-GAIN-APPREC> (2.15)<F1>
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.18<F1>
<EXPENSE-RATIO> 2.22<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>052
<NAME> SELIGMAN HENDERSON EMERGING MARKETS GROWTH FUND CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 55804
<INVESTMENTS-AT-VALUE> 50913
<RECEIVABLES> 1275
<ASSETS-OTHER> 5060
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 57248
<PAYABLE-FOR-SECURITIES> 2881
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 375
<TOTAL-LIABILITIES> 3256
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 81771
<SHARES-COMMON-STOCK> 3151<F1>
<SHARES-COMMON-PRIOR> 3966<F1>
<ACCUMULATED-NII-CURRENT> (2)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (22889)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (4888)
<NET-ASSETS> 16031<F1>
<DIVIDEND-INCOME> 379<F1>
<INTEREST-INCOME> 128<F1>
<OTHER-INCOME> (119)<F1>
<EXPENSES-NET> (724)<F1>
<NET-INVESTMENT-INCOME> (336)<F1>
<REALIZED-GAINS-CURRENT> (19266)
<APPREC-INCREASE-CURRENT> (4665)
<NET-CHANGE-FROM-OPS> (24801)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 643<F1>
<NUMBER-OF-SHARES-REDEEMED> (1458)<F1>
<SHARES-REINVESTED> 0<F1>
<NET-CHANGE-IN-ASSETS> (50147)
<ACCUMULATED-NII-PRIOR> (1)
<ACCUMULATED-GAINS-PRIOR> (3622)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 303<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 724<F1>
<AVERAGE-NET-ASSETS> 24203<F1>
<PER-SHARE-NAV-BEGIN> 7.27<F1>
<PER-SHARE-NII> (0.06)<F1>
<PER-SHARE-GAIN-APPREC> (2.12)<F1>
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.09<F1>
<EXPENSE-RATIO> 2.99<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>054
<NAME> SELIGMAN HENDERSON EMERGING MARKETS GROWTH FUND CLASS D
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 55804
<INVESTMENTS-AT-VALUE> 50913
<RECEIVABLES> 1275
<ASSETS-OTHER> 5060
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 57248
<PAYABLE-FOR-SECURITIES> 2881
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 375
<TOTAL-LIABILITIES> 3256
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 81771
<SHARES-COMMON-STOCK> 2683<F1>
<SHARES-COMMON-PRIOR> 4302<F1>
<ACCUMULATED-NII-CURRENT> (2)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (22889)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (4888)
<NET-ASSETS> 13667<F1>
<DIVIDEND-INCOME> 360<F1>
<INTEREST-INCOME> 124<F1>
<OTHER-INCOME> (114)<F1>
<EXPENSES-NET> (689)<F1>
<NET-INVESTMENT-INCOME> (319)<F1>
<REALIZED-GAINS-CURRENT> (19266)
<APPREC-INCREASE-CURRENT> (4665)
<NET-CHANGE-FROM-OPS> (24801)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0<F1>
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 893<F1>
<NUMBER-OF-SHARES-REDEEMED> (2512)<F1>
<SHARES-REINVESTED> 0<F1>
<NET-CHANGE-IN-ASSETS> (50147)
<ACCUMULATED-NII-PRIOR> (1)
<ACCUMULATED-GAINS-PRIOR> (3622)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 288<F1>
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 689<F1>
<AVERAGE-NET-ASSETS> 23066<F1>
<PER-SHARE-NAV-BEGIN> 7.27<F1>
<PER-SHARE-NII> (0.06)<F1>
<PER-SHARE-GAIN-APPREC> (2.12)<F1>
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.09<F1>
<EXPENSE-RATIO> 2.99<F1>
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
</TABLE>
