LOOMIS SAYLES FUNDS
NSAR-A, 1997-08-29
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<PAGE>      PAGE  1
000 A000000 06/30/97
000 C000000 0000872649
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 LOOMIS SAYLES FUNDS
001 B000000 811-6241
001 C000000 6174822450
002 A000000 ONE FINANCIAL CENTER
002 B000000 BOSTON
002 C000000 MA
002 D010000 02111
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000 17
015 A00AA01 STATE STREET BANK AND TRUST COMPANY
015 B00AA01 C
015 C01AA01 BOSTON
015 C02AA01 MA
015 C03AA01 02102
015 E01AA01 X
015 A00AA02 CITIBANK, N.A.
015 B00AA02 S
015 C01AA02 BUENOS AIRES
015 D01AA02 ARGENTINA
015 E04AA02 X
015 A00AA03 WESTPAC CUSTODIAN NOMINEES
015 B00AA03 S
015 C01AA03 SYDNEY
015 D01AA03 AUSTRALIA
015 E04AA03 X
015 A00AA04 GENERALE DE BANQUE
015 B00AA04 S
015 C01AA04 BRUSSELS
015 D01AA04 BELGIUM
015 E04AA04 X
015 A00AA05 CITIBANK, N.A.
015 B00AA05 S
015 C01AA05 SAO PAULO
015 D01AA05 BRAZIL
015 E04AA05 X
015 A00AA06 CANADA TRUST CO.
015 B00AA06 S
015 C01AA06 TORONTO
<PAGE>      PAGE  2
015 D01AA06 CANADA
015 E04AA06 X
015 A00AA07 DEN DANSKE BANK
015 B00AA07 S
015 C01AA07 COPENHAGEN
015 D01AA07 DENMARK
015 E04AA07 X
015 A00AA08 BANQUE PARIBAS
015 B00AA08 S
015 C01AA08 PARIS
015 D01AA08 FRANCE
015 E04AA08 X
015 A00AA09 DRESDNER BANK
015 B00AA09 S
015 C01AA09 FRANKFURT
015 D01AA09 GERMANY
015 E04AA09 X
015 A00AA10 STANDARD CHARTERED
015 B00AA10 S
015 C01AA10 HONG KONG
015 D01AA10 HONG KONG
015 E04AA10 X
015 A00AA11 BANK OF IRELAND
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015 C01AA11 DUBLIN
015 D01AA11 IRELAND
015 E04AA11 X
015 A00AA12 SUMITOMO TRUST
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015 C01AA12 TOKYO
015 D01AA12 JAPAN
015 E04AA12 X
015 A00AA13 SEOUL BANK
015 B00AA13 S
015 C01AA13 SEOUL
015 D01AA13 KOREA
015 E04AA13 X
015 A00AA14 CITIBANK MEXICO S.A.
015 B00AA14 S
015 C01AA14 MEXICO CITY
015 D01AA14 MEXICO
015 E04AA14 X
015 A00AA15 GIROCREDIT BANK
015 B00AA15 S
015 C01AA15 VIENNAOK
015 D01AA15 AUSTRIA
015 E04AA15 X
015 A00AA16 MEESPIERSON N.V.
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<PAGE>      PAGE  3
015 E04AA16 X
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015 A00AA18 CHRISTIANIA BANK
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015 D01AA21 SINGAPORE
015 E04AA21 X
015 A00AA22 THE STANDARD BANK OF SOUTH AFRICA LT
015 B00AA22 S
015 C01AA22 JAHANNESBURG
015 D01AA22 SOUTH AFRICA
015 E04AA22 X
015 A00AA23 BANCO SANTANDER
015 B00AA23 S
015 C01AA23 MADRID
015 D01AA23 SPAIN
015 E04AA23 X
015 A00AA24 SKANDINAVISKA ENSKILDA
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015 C01AA24 STOCKHOLM
015 D01AA24 SWEDEN
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<PAGE>      PAGE  4
015 A00AA27 STATE STREET BANK
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015 D01AA27 UNITED KINGDOM
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015 A00AA28 CITIBANK,N.A.
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015 A00AA29 HONGKONG AND SHANGHAI BANK
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015 C01AA29 SHANGHAI
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015 A00AA32 CITIBANK BUDAPEST R.T.
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015 A00AA33 DEUTSCHE BANK
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015 C01AA33 MUMBAI
015 D01AA33 INDIA
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015 A00AA34 HONGKONG AND SHANGHAI BANK CORP.
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015 C01AA34 MUMBAI
015 D01AA34 INDIA
015 E04AA34 X
015 A00AA35 STANDARD CHARTERED BANK
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015 C01AA35 JAKARTA
015 D01AA35 INDONESIA
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015 A00AA36 BANK HAPOALIM B.M.
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015 D01AA36 ISRAEL
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015 A00AA37 MORGAN GUARANTY TRUST COMPANY
<PAGE>      PAGE  5
015 B00AA37 S
015 C01AA37 MILAN
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015 E04AA37 X
015 A00AA38 BANQUE PARIBUS
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015 A00AA39 THE DAIWA BANK LTD.
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015 A00AA40 THE FUJI BANK, LTD.
015 B00AA40 S
015 C01AA40 TOKYO
015 D01AA40 JAPAN
015 E04AA40 X
015 A00AA41 THE BRITISH BANK OF THE MIDDLE EAST
015 B00AA41 S
015 C01AA41 AMMAN
015 D01AA41 JORDAN
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015 A00AA42 STANDARD CHARTERED BANK MALAYSIA
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015 A00AA47 CESKOSLOVENSKA OBCHODNA BANKA
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<PAGE>      PAGE  6
015 C01AA47 BRATSLAVIA
015 D01AA47 SLOVAK REPUBLIC
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015 A00AA48 THE HONG KONG AND SHANGHAI BANK
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015 C01AA48 COLOMBO
015 D01AA48 SRI LANKA
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015 A00AA49 CENTRAL TRUST OF CHINA
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015 C01AA50 ISTANBUL
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015 A00AA51 CITIBANK,N.A.
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015 C01AA51 MONTEVIDEO
015 D01AA51 URUGUAY
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015 A00AA52 CITIBANK,N.A.
015 B00AA52 S
015 C01AA52 CARACAS
015 D01AA52 VENEZUELA
015 E04AA52 X
018  00AA00 Y
019 A00AA00 Y
019 B00AA00   17
019 C00AA00 NEWLOOMISF
029  00AA00 N
030 A00AA00      0
030 B00AA00  0.00
030 C00AA00  0.00
042 A00AA00   0
042 B00AA00   0
042 C00AA00   0
042 D00AA00 100
042 E00AA00   0
042 F00AA00   0
042 G00AA00   0
042 H00AA00   0
043  00AA00     23
044  00AA00      0
055 A00AA00 N
055 B00AA00 N
056  00AA00 Y
057  00AA00 N
058 A00AA00 N
<PAGE>      PAGE  7
059  00AA00 Y
060 A00AA00 Y
060 B00AA00 Y
061  00AA00   250000
077 A000000 N
078  000000 N
028 A010100      2309
028 A020100         0
028 A030100         0
028 A040100      4714
028 B010100       372
028 B020100         0
028 B030100         0
028 B040100      2287
028 C010100        90
028 C020100         0
028 C030100         0
028 C040100       482
028 D010100       275
028 D020100         0
028 D030100         0
028 D040100      1270
028 E010100       143
028 E020100         0
028 E030100         0
028 E040100      1849
028 F010100        59
028 F020100         0
028 F030100         0
028 F040100      2006
028 G010100      3248
028 G020100         0
028 G030100         0
028 G040100     12608
028 H000100         0
034  000100 N
035  000100      0
036 B000100      0
062 A000100 N
062 B000100   0.0
062 C000100   0.0
062 D000100   0.0
062 E000100   0.0
062 F000100   0.0
062 G000100   0.0
062 H000100   0.0
062 I000100   0.0
062 J000100   0.0
062 K000100   0.0
062 L000100   0.0
062 M000100   0.0
<PAGE>      PAGE  8
062 N000100   0.0
062 O000100   0.0
062 P000100   0.0
062 Q000100   0.0
062 R000100   0.0
070 A010100 Y
070 A020100 Y
070 B010100 N
070 B020100 N
070 C010100 N
070 C020100 N
070 D010100 N
070 D020100 N
070 E010100 N
070 E020100 N
070 F010100 N
070 F020100 N
070 G010100 N
070 G020100 N
070 H010100 N
070 H020100 N
070 I010100 N
070 I020100 N
070 J010100 Y
070 J020100 N
070 K010100 Y
070 K020100 N
070 L010100 Y
070 L020100 Y
070 M010100 Y
070 M020100 Y
070 N010100 N
070 N020100 N
070 O010100 Y
070 O020100 N
070 P010100 N
070 P020100 N
070 Q010100 N
070 Q020100 N
070 R010100 N
070 R020100 N
071 A000100     19103
071 B000100     26935
071 C000100     35153
071 D000100   54
072 A000100  6
072 B000100       14
072 C000100      109
072 D000100        0
072 E000100        0
072 F000100       89
<PAGE>      PAGE  9
072 G000100        8
072 H000100        0
072 Y000100       29
072 Z000100      -26
072AA000100     4198
072BB000100        0
072CC010100        0
072CC020100     1217
072DD010100        0
072DD020100        0
072EE000100        0
073 A010100   0.0000
073 A020100   0.0000
073 B000100   0.0000
073 C000100   0.0000
074 N000100    33194
074 O000100        0
074 P000100       14
074 Q000100        0
074 R010100        0
074 R020100        0
074 R030100        0
074 R040100       88
074 S000100        0
074 T000100    33092
074 U010100     2253
074 U020100       12
074 V010100    14.62
074 V020100    14.60
074 W000100   0.0000
074 X000100      633
074 Y000100        0
075 A000100        0
075 B000100    35995
025 D000201       0
025 D000202       0
025 D000203       0
025 D000204       0
025 D000205       0
025 D000206       0
025 D000207       0
025 D000208       0
028 A010200      2790
028 A020200         0
028 A030200         0
028 A040200      1646
028 B010200       545
028 B020200         0
028 B030200         0
028 B040200      1279
028 C010200       901
<PAGE>      PAGE  10
028 C020200         0
028 C030200         0
028 C040200       987
028 D010200       497
028 D020200         0
028 D030200         0
028 D040200      1689
028 E010200      1523
028 E020200         0
028 E030200         0
028 E040200       809
028 F010200      1682
028 F020200         0
028 F030200         0
028 F040200       153
028 G010200      7938
028 G020200         0
028 G030200         0
028 G040200      6563
028 H000200         0
034  000200 N
035  000200      0
036 B000200      0
062 A000200 N
062 B000200   0.0
062 C000200   0.0
062 D000200   0.0
062 E000200   0.0
062 F000200   0.0
062 G000200   0.0
062 H000200   0.0
062 I000200   0.0
062 J000200   0.0
062 K000200   0.0
062 L000200   0.0
062 M000200   0.0
062 N000200   0.0
062 O000200   0.0
062 P000200   0.0
062 Q000200   0.0
062 R000200   0.0
070 A010200 Y
070 A020200 N
070 B010200 N
070 B020200 N
070 C010200 N
070 C020200 N
070 D010200 N
070 D020200 N
070 E010200 N
070 E020200 N
<PAGE>      PAGE  11
070 F010200 N
070 F020200 N
070 G010200 N
070 G020200 N
070 H010200 N
070 H020200 N
070 I010200 N
070 I020200 N
070 J010200 Y
070 J020200 N
070 K010200 Y
070 K020200 N
070 L010200 Y
070 L020200 Y
070 M010200 Y
070 M020200 Y
070 N010200 N
070 N020200 N
070 O010200 Y
070 O020200 N
070 P010200 N
070 P020200 N
070 Q010200 N
070 Q020200 N
070 R010200 N
070 R020200 N
071 A000200     16229
071 B000200     15637
071 C000200     45647
071 D000200   34
072 A000200  6
074 N000200    53246
074 T000200    52916
075 A000200        0
075 B000200    47371
028 A010300     14637
028 A020300         0
028 A030300         0
028 A040300      5614
028 B010300      5986
028 B020300         0
028 B030300         0
028 B040300      3848
028 C010300      3123
028 C020300         0
028 C030300         0
028 C040300      4175
028 D010300      4002
028 D020300         0
028 D030300         0
028 D040300      3992
<PAGE>      PAGE  12
028 E010300      4346
028 E020300         0
028 E030300         0
028 E040300      3129
028 F010300      5298
028 F020300         0
028 F030300         0
028 F040300      2915
028 G010300     37392
028 G020300         0
028 G030300         0
028 G040300     23673
028 H000300         0
034  000300 N
035  000300      0
036 B000300      0
062 A000300 N
062 B000300   0.0
062 C000300   0.0
062 D000300   0.0
062 E000300   0.0
062 F000300   0.0
062 G000300   0.0
062 H000300   0.0
062 I000300   0.0
062 J000300   0.0
062 K000300   0.0
062 L000300   0.0
062 M000300   0.0
062 N000300   0.0
062 O000300   0.0
062 P000300   0.0
062 Q000300   0.0
062 R000300   0.0
070 A010300 Y
070 A020300 N
070 B010300 N
070 B020300 N
070 C010300 N
070 C020300 N
070 D010300 N
070 D020300 N
070 E010300 N
070 E020300 N
070 F010300 N
070 F020300 N
070 G010300 N
070 G020300 N
070 H010300 N
070 H020300 N
070 I010300 N
<PAGE>      PAGE  13
070 I020300 N
070 J010300 Y
070 J020300 N
070 K010300 Y
070 K020300 N
070 L010300 Y
070 L020300 Y
070 M010300 Y
070 M020300 N
070 N010300 N
070 N020300 N
070 O010300 Y
070 O020300 N
070 P010300 N
070 P020300 N
070 Q010300 N
070 Q020300 N
070 R010300 N
070 R020300 N
071 A000300     93268
071 B000300     73485
071 C000300    157938
071 D000300   47
072 A000300  6
072 B000300      511
072 C000300     1076
072 D000300        0
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072 F000300      660
072 G000300       38
072 H000300        0
072 Y000300        9
072 Z000300      730
072AA000300    15547
072BB000300        0
072CC010300     6239
072CC020300        0
072DD010300        0
072DD020300        0
072EE000300        0
073 A010300   0.0000
073 A020300   0.0000
073 B000300   0.0000
073 C000300   0.0000
074 A000300        0
074 B000300        0
074 C000300    17207
074 D000300        0
074 E000300        0
074 F000300   181919
074 G000300        0
<PAGE>      PAGE  14
074 H000300        0
074 I000300        0
074 J000300     1726
074 K000300        9
074 L000300      589
074 M000300        8
074 N000300   201458
074 O000300     1300
074 P000300      119
074 Q000300        0
074 R010300        0
074 R020300        0
074 R030300        0
074 R040300      180
074 S000300        0
074 T000300   199859
074 U010300     9667
074 U020300      504
074 V010300    19.65
074 V020300    19.62
074 W000300   0.0000
074 X000300     2305
074 Y000300        0
075 A000300        0
075 B000300   177380
076  000300     0.00
028 A010400      1953
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028 A040400       583
028 B010400      2681
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028 B030400         0
028 B040400       685
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028 C020400         0
028 C030400         0
028 C040400       783
028 D010400       501
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028 D030400         0
028 D040400       300
028 E010400      1464
028 E020400         0
028 E030400         0
028 E040400       567
028 F010400       172
028 F020400         0
028 F030400         0
028 F040400      1698
028 G010400      7184
<PAGE>      PAGE  15
028 G020400         0
028 G030400         0
028 G040400      4616
028 H000400         0
034  000400 N
035  000400      0
036 B000400      0
062 A000400 N
062 B000400   0.0
062 C000400   0.0
062 D000400   0.0
062 E000400   0.0
062 F000400   0.0
062 G000400   0.0
062 H000400   0.0
062 I000400   0.0
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062 M000400   0.0
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062 O000400   0.0
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062 Q000400   0.0
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071 A000400     40510
071 B000400     41658
071 C000400     90146
071 D000400   45
072 A000400  6
072 B000400      123
072 C000400     1163
072 D000400        0
072 E000400        0
072 F000400      355
072 G000400       21
072 H000400        0
072 I000400       26
072 J000400      121
072 K000400        0
072 L000400        4
072 M000400        3
072 N000400        6
072 O000400        0
072 P000400        0
072 Q000400        0
072 R000400       10
072 S000400        2
072 T000400        0
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072 V000400        0
<PAGE>      PAGE  16
072 W000400        5
072 X000400      553
072 Y000400       80
072 Z000400      813
072AA000400     3014
072BB000400        0
072CC010400     5194
072CC020400        0
072DD010400        0
072DD020400        0
072EE000400        0
073 A010400   0.0000
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073 B000400   0.0000
073 C000400   0.0000
074 A000400        1
074 B000400     6266
074 C000400        0
074 D000400        0
074 E000400        0
074 F000400    95818
074 G000400        0
074 H000400        0
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074 J000400        0
074 K000400       80
074 L000400      158
074 M000400       87
074 N000400   102410
074 T000400   102251
075 A000400        0
075 B000400    95358
028 A010500      1586
028 A020500         0
028 A030500         0
028 A040500      1332
028 B010500      1131
028 B020500         0
028 B030500         0
028 B040500       705
028 C010500       760
028 C020500         0
028 C030500         0
028 C040500       159
028 D010500       324
028 D020500         0
028 D030500         0
028 D040500       251
028 E010500       910
028 E020500         0
028 E030500         0
<PAGE>      PAGE  17
028 E040500       324
028 F010500       356
028 F020500         0
028 F030500         0
028 F040500       394
028 G010500      5067
028 G020500         0
028 G030500         0
028 G040500      3166
028 H000500         0
034  000500 N
035  000500      0
036 B000500      0
062 A000500 Y
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062 D000500   0.0
062 E000500   0.0
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062 H000500   0.0
062 I000500   0.0
062 J000500   0.0
062 K000500   0.0
062 L000500   0.0
062 M000500   0.0
062 N000500   1.8
062 O000500   0.0
062 P000500  30.9
062 Q000500  60.6
062 R000500   4.1
071 A000500     14562
071 B000500     12515
071 C000500     26401
071 D000500   47
072 A000500  6
072 I000500       24
072 J000500       37
072 K000500        0
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072 M000500        3
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072 R000500        9
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072 W000500        0
<PAGE>      PAGE  18
072 X000500      181
074 N000500    29587
074 T000500    29429
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028 A010600     70567
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028 A030600         0
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028 B030600         0
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028 F040600     10181
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028 G040600     83445
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034  000600 N
035  000600      0
036 B000600      0
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062 C000600   0.0
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062 F000600   0.0
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062 H000600   0.0
062 I000600   0.0
062 J000600   0.0
062 K000600   0.0
062 L000600   0.0
062 M000600   6.0
062 N000600   2.7
<PAGE>      PAGE  19
062 O000600   0.1
062 P000600  54.9
062 Q000600  26.9
062 R000600   3.7
063 A000600   0
063 B000600 19.3
064 A000600 N
064 B000600 Y
065  000600 N
071 A000600    380504
071 B000600     92411
071 C000600    676753
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072 S000600       11
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072 X000600     2810
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<PAGE>      PAGE  20
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034  000700 N
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063 B000700 10.6
064 A000700 Y
064 B000700 N
071 A000700      1875
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072 A000700  6
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028 B010800       327
<PAGE>      PAGE  21
028 B020800         0
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028 F030800         0
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028 G010800       908
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028 G030800         0
028 G040800      2140
028 H000800         0
034  000800 N
035  000800      0
036 B000800      0
062 A000800 Y
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062 C000800   0.0
062 D000800   0.0
062 E000800   0.0
062 F000800   0.0
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062 K000800   0.0
062 L000800   0.0
062 M000800  78.0
062 N000800  20.8
062 O000800   0.0
062 P000800   0.0
062 Q000800   0.0
062 R000800   0.0
071 A000800      7104
071 B000800      7993
071 C000800     12946
071 D000800   55
072 A000800  6
074 A000800       51
<PAGE>      PAGE  22
074 B000800        0
074 C000800        0
074 D000800    13120
074 E000800        0
074 F000800        0
074 G000800        0
074 H000800        0
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074 J000800        0
074 K000800       38
074 L000800      118
074 M000800        0
074 N000800    13327
074 T000800    13281
075 A000800        0
075 B000800    13059
024  000900 Y
025 A000901 LEHMAN BROTHERS HOLDINGS INC
025 B000901 13-2518466
025 C000901 D
025 D000901     626
025 A000902 SALOMON BROTHERS INC
025 B000902 13-3082694
025 C000902 D
025 D000902     453
025 A000903 SMITH BARNEY HOLDINGS INC
025 B000903 13-1912900
025 C000903 D
025 D000903     633
025 D000904       0
025 D000905       0
025 D000906       0
025 D000907       0
025 D000908       0
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028 A020900        76
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028 C020900        78
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028 D010900        44
028 D020900        75
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028 D040900       381
028 E010900      1191
<PAGE>      PAGE  23
028 E020900        77
028 E030900         0
028 E040900       561
028 F010900       685
028 F020900        77
028 F030900         0
028 F040900       920
028 G010900      5440
028 G020900       453
028 G030900         0
028 G040900      7876
028 H000900         0
034  000900 N
035  000900      0
036 B000900      0
062 A000900 Y
062 B000900   0.0
062 C000900   0.0
062 D000900   0.8
062 E000900   0.0
062 F000900   0.0
062 G000900   0.0
062 H000900   0.0
062 I000900   0.0
062 J000900   0.0
062 K000900   0.0
062 L000900   0.0
062 M000900   9.4
062 N000900   9.7
062 O000900   0.0
062 P000900  71.5
062 Q000900   7.3
062 R000900   0.0
070 A010900 Y
070 A020900 Y
070 B010900 N
070 B020900 N
070 C010900 N
070 C020900 N
070 D010900 N
070 D020900 N
070 E010900 N
070 E020900 N
070 F010900 N
070 F020900 N
070 G010900 N
070 G020900 N
070 H010900 N
070 H020900 N
070 I010900 N
070 I020900 N
<PAGE>      PAGE  24
070 J010900 Y
070 J020900 N
070 K010900 Y
070 K020900 N
070 L010900 Y
070 L020900 N
070 M010900 Y
070 M020900 N
070 N010900 N
070 N020900 N
070 O010900 Y
070 O020900 N
070 P010900 N
070 P020900 N
070 Q010900 N
070 Q020900 N
070 R010900 N
070 R020900 N
071 A000900      6844
071 B000900      8883
071 C000900     15703
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072 A000900  6
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072 S000900        2
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072 X000900       98
074 N000900    16273
074 T000900    16188
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075 B000900    16021
028 A011000      1072
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028 B011000      1112
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028 B031000         0
028 B041000         0
<PAGE>      PAGE  25
028 C011000        19
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028 D041000         0
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028 F011000        18
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028 F031000         0
028 F041000         0
028 G011000      2231
028 G021000         0
028 G031000         0
028 G041000       155
028 H001000         0
034  001000 N
035  001000      0
036 B001000      0
062 A001000 N
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062 C001000   0.0
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062 E001000   0.0
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062 J001000   0.0
062 K001000   0.0
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071 A001000      4556
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071 C001000      6402
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<PAGE>      PAGE  26
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072 Z001000      140
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072EE001000        0
073 A011000   0.0000
073 A021000   0.0000
073 B001000   0.0000
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074 B001000      258
074 C001000        0
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028 A011100       749
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<PAGE>      PAGE  27
028 B041100        43
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028 D031100         0
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028 G011100      3804
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034  001100 Y
035  001100      9
036 A001100 N
036 B001100      0
062 A001100 Y
062 B001100   0.0
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062 D001100   2.9
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062 I001100   0.0
062 J001100   0.0
062 K001100   0.0
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062 O001100   0.0
062 P001100  58.0
062 Q001100  27.1
062 R001100  10.6
063 A001100   0
063 B001100 13.9
064 A001100 N
064 B001100 Y
065  001100 N
066 A001100 N
067  001100 N
<PAGE>      PAGE  28
068 A001100 N
068 B001100 N
069  001100 N
070 A011100 Y
070 A021100 Y
070 B011100 N
070 B021100 N
070 C011100 Y
070 C021100 N
070 D011100 N
070 D021100 N
070 E011100 N
070 E021100 N
070 F011100 N
070 F021100 N
070 G011100 N
070 G021100 N
070 H011100 N
070 H021100 N
070 I011100 N
070 I021100 N
070 J011100 Y
070 J021100 N
070 K011100 N
070 K021100 N
070 L011100 Y
070 L021100 Y
070 M011100 Y
070 M021100 N
070 N011100 N
070 N021100 N
070 O011100 N
070 O021100 N
070 P011100 N
070 P021100 N
070 Q011100 N
070 Q021100 N
070 R011100 N
070 R021100 N
071 A001100      4335
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<PAGE>      PAGE  29
072 I001100       20
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072 M001100        3
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072 Q001100        0
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028 G041200        68
028 H001200         0
034  001200 N
035  001200      0
<PAGE>      PAGE  30
036 B001200      0
062 A001200 N
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072 X001200       86
074 N001200     3509
074 T001200     3319
075 A001200        0
075 B001200     2221
<PAGE>      PAGE  31
034  001300 N
035  001300      0
036 B001300      0
062 A001300 Y
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062 J001300   0.0
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062 L001300   0.0
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062 P001300  59.9
062 Q001300  27.6
062 R001300   4.9
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063 B001300 19.9
064 A001300 N
064 B001300 N
070 A011300 Y
070 A021300 N
070 B011300 N
070 B021300 N
070 C011300 Y
070 C021300 N
070 D011300 N
070 D021300 N
070 E011300 N
070 E021300 N
070 F011300 N
070 F021300 N
070 G011300 N
070 G021300 N
070 H011300 N
070 H021300 N
070 I011300 N
070 I021300 N
070 J011300 Y
070 J021300 N
070 K011300 Y
070 K021300 N
070 L011300 Y
070 L021300 Y
070 M011300 Y
070 M021300 Y
<PAGE>      PAGE  32
070 N011300 Y
070 N021300 N
070 O011300 Y
070 O021300 N
070 P011300 N
070 P021300 N
070 Q011300 N
070 Q021300 N
070 R011300 N
070 R021300 N
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074 L001300       50
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074 P001300        1
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074 S001300        0
074 T001300     1981
074 U011300      164
074 U021300       25
074 V011300    10.46
074 V021300    10.45
074 W001300   0.0000
074 X001300       30
<PAGE>      PAGE  33
074 Y001300        0
075 A001300        0
075 B001300     1674
076  001300     0.00
024  001400 Y
025 A001401 BEAR STEARNS COMPANY INC
025 B001401 13-3299429
025 C001401 D
025 D001401      58
025 A001402 LEHMAN BROTHERS HOLDINGS INC
025 B001402 13-2518466
025 C001402 D
025 D001402     198
025 A001403 SALOMON BROTHERS INC
025 B001403 13-3082694
025 C001403 D
025 D001403     222
025 D001404       0
025 D001405       0
025 D001406       0
025 D001407       0
025 D001408       0
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028 G021400        20
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028 H001400         0
<PAGE>      PAGE  34
034  001400 N
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036 B001400      0
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062 K001400   0.0
062 L001400   0.0
062 M001400   6.1
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062 P001400  58.2
062 Q001400  18.9
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063 B001400  5.0
064 A001400 N
064 B001400 N
071 A001400      6835
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<PAGE>      PAGE  35
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<PAGE>      PAGE  36
028 G011500       872
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028 G031500         0
028 G041500         7
028 H001500         0
034  001500 N
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036 B001500      0
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062 P001500   0.0
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066 A001500 Y
066 B001500 N
066 C001500 Y
066 D001500 N
066 E001500 N
066 F001500 N
066 G001500 N
067  001500 N
068 A001500 N
068 B001500 N
069  001500 N
071 A001500       957
071 B001500       131
071 C001500       549
071 D001500   24
072 A001500  6
074 N001500     1018
074 T001500      972
075 A001500        0
075 B001500      650
028 A011600      1560
028 A021600         0
028 A031600         0
028 A041600        14
028 B011600        96
<PAGE>      PAGE  37
028 B021600         0
028 B031600         0
028 B041600         0
028 C011600       154
028 C021600         0
028 C031600         0
028 C041600         0
028 D011600        57
028 D021600         0
028 D031600         0
028 D041600         0
028 E011600       318
028 E021600         0
028 E031600         0
028 E041600         0
028 F011600        36
028 F021600         0
028 F031600         0
028 F041600         0
028 G011600      2221
028 G021600         0
028 G031600         0
028 G041600        14
028 H001600         0
034  001600 N
035  001600      0
036 B001600      0
062 A001600 N
062 B001600   0.0
062 C001600   0.0
062 D001600   0.0
062 E001600   0.0
062 F001600   0.0
062 G001600   0.0
062 H001600   0.0
062 I001600   0.0
062 J001600   0.0
062 K001600   0.0
062 L001600   0.0
062 M001600   0.0
062 N001600   0.0
062 O001600   0.0
062 P001600   0.0
062 Q001600   0.0
062 R001600   0.0
066 A001600 Y
066 B001600 N
066 C001600 Y
066 D001600 N
066 E001600 N
066 F001600 N
<PAGE>      PAGE  38
066 G001600 N
067  001600 N
068 A001600 N
068 B001600 N
069  001600 N
071 A001600      2546
071 B001600       572
071 C001600      1475
071 D001600   39
072 A001600  6
072 B001600        5
072 C001600       13
072 D001600        0
072 E001600        0
072 F001600        7
072 G001600        0
072 H001600        0
074 N001600     2532
074 T001600     2456
075 A001600        0
075 B001600     1811
028 A011700      1162
028 A021700         0
028 A031700         0
028 A041700         0
028 B011700        67
028 B021700         0
028 B031700         0
028 B041700         0
028 C011700        48
028 C021700         0
028 C031700         0
028 C041700         0
028 D011700         9
028 D021700         0
028 D031700         0
028 D041700        17
028 E011700       300
028 E021700         0
028 E031700         0
028 E041700         6
028 F011700         7
028 F021700         0
028 F031700         0
028 F041700         0
028 G011700      1593
028 G021700         0
028 G031700         0
028 G041700        23
028 H001700         0
034  001700 N
<PAGE>      PAGE  39
035  001700      0
036 B001700      0
062 A001700 N
062 B001700   0.0
062 C001700   0.0
062 D001700   0.0
062 E001700   0.0
062 F001700   0.0
062 G001700   0.0
062 H001700   0.0
062 I001700   0.0
062 J001700   0.0
062 K001700   0.0
062 L001700   0.0
062 M001700   0.0
062 N001700   0.0
062 O001700   0.0
062 P001700   0.0
062 Q001700   0.0
062 R001700   0.0
066 A001700 Y
066 B001700 N
066 C001700 Y
066 D001700 N
066 E001700 N
066 F001700 N
066 G001700 N
067  001700 N
068 A001700 N
068 B001700 N
069  001700 N
070 A011700 Y
070 A021700 N
070 B011700 Y
070 B021700 N
070 C011700 N
070 C021700 N
070 D011700 Y
070 D021700 N
070 E011700 N
070 E021700 N
070 F011700 Y
070 F021700 N
070 G011700 Y
070 G021700 N
070 H011700 N
070 H021700 N
070 I011700 N
070 I021700 N
070 J011700 N
070 J021700 N
<PAGE>      PAGE  40
070 K011700 Y
070 K021700 N
070 L011700 Y
070 L021700 N
070 M011700 Y
070 M021700 N
070 N011700 Y
070 N021700 N
070 O011700 Y
070 O021700 N
070 P011700 N
070 P021700 N
070 Q011700 N
070 Q021700 N
070 R011700 N
070 R021700 N
071 A001700      2520
071 B001700      1079
071 C001700      1043
071 D001700  103
072 A001700  6
072 B001700        2
072 C001700        3
072 D001700        0
072 E001700        0
072 F001700        5
072 G001700        0
072 H001700        0
074 N001700     1703
074 T001700     1654
075 A001700        0
075 B001700     1288
SIGNATURE   VENETTA PHILLIPS                             
TITLE       REPORTING ADMIN     
 


<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS SAYLES FUNDS
<SERIES>
   <NUMBER> 041
   <NAME> LOOMIS SAYLES INTERNATIONAL EQUITY FUND
       
<S>                             <C>                     
<PERIOD-TYPE>                   6-MOS                   
<FISCAL-YEAR-END>                          DEC-31-1997             
<PERIOD-START>                             JAN-01-1997             
<PERIOD-END>                               JUN-30-1997             
<INVESTMENTS-AT-COST>                         86792447             
<INVESTMENTS-AT-VALUE>                       102084299             
<RECEIVABLES>                                   157573             
<ASSETS-OTHER>                                  168223             
<OTHER-ITEMS-ASSETS>                                 0                       
<TOTAL-ASSETS>                               102410095               
<PAYABLE-FOR-SECURITIES>                             0                
<SENIOR-LONG-TERM-DEBT>                              0                
<OTHER-ITEMS-LIABILITIES>                       159048                
<TOTAL-LIABILITIES>                             159048                
<SENIOR-EQUITY>                                      0                
<PAID-IN-CAPITAL-COMMON>                      81781634                
<SHARES-COMMON-STOCK>                          7071060                
<SHARES-COMMON-PRIOR>                          6890021                
<ACCUMULATED-NII-CURRENT>                       838274                
<OVERDISTRIBUTION-NII>                               0                
<ACCUMULATED-NET-GAINS>                        4341648                
<OVERDISTRIBUTION-GAINS>                             0                
<ACCUM-APPREC-OR-DEPREC>                      15289491                
<NET-ASSETS>                                 102251047              
<DIVIDEND-INCOME>                              1162855              
<INTEREST-INCOME>                               122999                 
<OTHER-INCOME>                                       0                 
<EXPENSES-NET>                                (473024)                
<NET-INVESTMENT-INCOME>                         812830                
<REALIZED-GAINS-CURRENT>                       3014687                
<APPREC-INCREASE-CURRENT>                            0                
<NET-CHANGE-FROM-OPS>                          5193578                
<EQUALIZATION>                                       0                
<DISTRIBUTIONS-OF-INCOME>                            0                
<DISTRIBUTIONS-OF-GAINS>                             0                
<DISTRIBUTIONS-OTHER>                                0                
<NUMBER-OF-SHARES-SOLD>                         516638                
<NUMBER-OF-SHARES-REDEEMED>                   (335599)                
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<NET-CHANGE-IN-ASSETS>                        11588612                       
<ACCUMULATED-NII-PRIOR>                          25444                  
<ACCUMULATED-GAINS-PRIOR>                      1326961                 
<OVERDISTRIB-NII-PRIOR>                              0                 
<OVERDIST-NET-GAINS-PRIOR>                           0                 
<GROSS-ADVISORY-FEES>                           354652                 
<INTEREST-EXPENSE>                                   0                       
<GROSS-EXPENSE>                                 552916                       
<AVERAGE-NET-ASSETS>                          95232608                 
<PER-SHARE-NAV-BEGIN>                            13.16            
<PER-SHARE-NII>                                   0.11                   
<PER-SHARE-GAIN-APPREC>                           1.15                   
<PER-SHARE-DIVIDEND>                                 0                   
<PER-SHARE-DISTRIBUTIONS>                            0                   
<RETURNS-OF-CAPITAL>                                 0                   
<PER-SHARE-NAV-END>                              14.42                   
<EXPENSE-RATIO>                                   1.00                   
<AVG-DEBT-OUTSTANDING>                               0                   
<AVG-DEBT-PER-SHARE>                                 0                   
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS, SAYLES & COMPANY L.P.
<SERIES>
   <NUMBER> 042
   <NAME> LOOMIS SAYLES INTERNATIONAL EQUITY FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                         86792447
<INVESTMENTS-AT-VALUE>                       102084299
<RECEIVABLES>                                   157573
<ASSETS-OTHER>                                  168223
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               102410095
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       159048
<TOTAL-LIABILITIES>                             159048
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                      81781634
<SHARES-COMMON-STOCK>                            18683
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<ACCUMULATED-NII-CURRENT>                       838274
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<OVERDISTRIBUTION-GAINS>                             0
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<NET-ASSETS>                                 102251047
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<INTEREST-INCOME>                               122999
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                (473024)
<NET-INVESTMENT-INCOME>                         812830
<REALIZED-GAINS-CURRENT>                       3014687
<APPREC-INCREASE-CURRENT>                      5193578
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<EQUALIZATION>                                       0
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<NUMBER-OF-SHARES-SOLD>                          20965
<NUMBER-OF-SHARES-REDEEMED>                     (2282)
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<ACCUMULATED-NII-PRIOR>                          25444
<ACCUMULATED-GAINS-PRIOR>                      1326961
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           354652
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 552916     
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<PER-SHARE-NAV-BEGIN>                            13.16
<PER-SHARE-NII>                                   0.06
<PER-SHARE-GAIN-APPREC>                           1.18
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<PER-SHARE-NAV-END>                              14.40
<EXPENSE-RATIO>                                   1.25
<AVG-DEBT-OUTSTANDING>                               0
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000874964
<NAME> LOOMIS, SAYLES & COMPANY, L.P.
<SERIES>
   <NUMBER> 051
   <NAME> LOOMIS SAYLES GLOBAL BOND FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                         27849024
<INVESTMENTS-AT-VALUE>                        28658775
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<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                      28166499
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<NET-ASSETS>                                  29429251
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<APPREC-INCREASE-CURRENT>                      (94230)
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<EQUALIZATION>                                       0
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<GROSS-EXPENSE>                                 180850
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000874964
<NAME> LOOMIS, SAYLES & COMPANY, L.P.
<SERIES>
   <NUMBER> 052
   <NAME> LOOMIS SAYLES GLOBAL BOND FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                         27849024
<INVESTMENTS-AT-VALUE>                        28658775
<RECEIVABLES>                                   865304
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<TOTAL-LIABILITIES>                             158063
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<PAID-IN-CAPITAL-COMMON>                      28166499
<SHARES-COMMON-STOCK>                           223905
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<ACCUMULATED-NII-CURRENT>                       758656
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<NET-ASSETS>                                  29429251
<DIVIDEND-INCOME>                                    0
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<OTHER-INCOME>                                       0
<EXPENSES-NET>                                (125274)
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<REALIZED-GAINS-CURRENT>                        315211
<APPREC-INCREASE-CURRENT>                      (94230)
<NET-CHANGE-FROM-OPS>                          1014587
<EQUALIZATION>                                       0
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<NUMBER-OF-SHARES-SOLD>                         249980
<NUMBER-OF-SHARES-REDEEMED>                    (26075)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                         2916379
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<OVERDIST-NET-GAINS-PRIOR>                    (670657)
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<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 180850
<AVERAGE-NET-ASSETS>                           1634021
<PER-SHARE-NAV-BEGIN>                            12.35
<PER-SHARE-NII>                                   0.20
<PER-SHARE-GAIN-APPREC>                           0.23
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              12.78
<EXPENSE-RATIO>                                   1.15
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS SAYLES FUNDS
<SERIES>
   <NUMBER> 011
   <NAME> LOOMIS SAYLES GROWTH FUND
       
<S>                             <C>                     
<PERIOD-TYPE>                   6-MOS                    
<FISCAL-YEAR-END>                          DEC-31-1997             
<PERIOD-START>                             JAN-01-1997             
<PERIOD-END>                               JUN-30-1997             
<INVESTMENTS-AT-COST>                         27517631             
<INVESTMENTS-AT-VALUE>                        33127290             
<RECEIVABLES>                                    31829                  
<ASSETS-OTHER>                                   35260                   
<OTHER-ITEMS-ASSETS>                                 0                   
<TOTAL-ASSETS>                                33194379               
<PAYABLE-FOR-SECURITIES>                             0               
<SENIOR-LONG-TERM-DEBT>                              0               
<OTHER-ITEMS-LIABILITIES>                       102614               
<TOTAL-LIABILITIES>                             102614               
<SENIOR-EQUITY>                                      0               
<PAID-IN-CAPITAL-COMMON>                      22189791               
<SHARES-COMMON-STOCK>                          2252726               
<SHARES-COMMON-PRIOR>                          2938173               
<ACCUMULATED-NII-CURRENT>                            0                     
<OVERDISTRIBUTION-NII>                         (14294)                
<ACCUMULATED-NET-GAINS>                        5306609                
<OVERDISTRIBUTION-GAINS>                             0                
<ACCUM-APPREC-OR-DEPREC>                       5609659                
<NET-ASSETS>                                  33091765                
<DIVIDEND-INCOME>                               109068                
<INTEREST-INCOME>                                14430                
<OTHER-INCOME>                                       0                
<EXPENSES-NET>                                (149515)                
<NET-INVESTMENT-INCOME>                        (26017)                
<REALIZED-GAINS-CURRENT>                       4197314                
<APPREC-INCREASE-CURRENT>                    (1216579)               
<NET-CHANGE-FROM-OPS>                          2954718               
<EQUALIZATION>                                       0                       
<DISTRIBUTIONS-OF-INCOME>                            0                       
<DISTRIBUTIONS-OF-GAINS>                             0                       
<DISTRIBUTIONS-OTHER>                                0                       
<NUMBER-OF-SHARES-SOLD>                         162099                  
<NUMBER-OF-SHARES-REDEEMED>                   (847546)                 
<SHARES-REINVESTED>                                  0                 
<NET-CHANGE-IN-ASSETS>                       (6405146)               
<ACCUMULATED-NII-PRIOR>                          11723               
<ACCUMULATED-GAINS-PRIOR>                      1109295               
<OVERDISTRIB-NII-PRIOR>                              0               
<OVERDIST-NET-GAINS-PRIOR>                           0                    
<GROSS-ADVISORY-FEES>                            89247                   
<INTEREST-EXPENSE>                                   0                   
<GROSS-EXPENSE>                                      0                   
<AVERAGE-NET-ASSETS>                          35678712                
<PER-SHARE-NAV-BEGIN>                            13.44                
<PER-SHARE-NII>                                 (0.01)                
<PER-SHARE-GAIN-APPREC>                           1.19                
<PER-SHARE-DIVIDEND>                                 0                       
<PER-SHARE-DISTRIBUTIONS>                            0                       
<RETURNS-OF-CAPITAL>                                 0                       
<PER-SHARE-NAV-END>                              14.62                  
<EXPENSE-RATIO>                                   0.85                  
<AVG-DEBT-OUTSTANDING>                               0                  
<AVG-DEBT-PER-SHARE>                                 0                  
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS, SAYLES & COMPANY, L.P.
<SERIES>
   <NUMBER> 012
   <NAME> LOOMIS SAYLES GROWTH FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                         27517631
<INVESTMENTS-AT-VALUE>                        33127290
<RECEIVABLES>                                    31829
<ASSETS-OTHER>                                   35260
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                33194379
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       102614
<TOTAL-LIABILITIES>                             102614
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                      22189791
<SHARES-COMMON-STOCK>                            11516
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                         (14294)
<ACCUMULATED-NET-GAINS>                        5306609
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       5609659
<NET-ASSETS>                                  33091765
<DIVIDEND-INCOME>                               109068
<INTEREST-INCOME>                                14430
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                (149515)
<NET-INVESTMENT-INCOME>                        (26017)
<REALIZED-GAINS-CURRENT>                       4197314
<APPREC-INCREASE-CURRENT>                    (1216579)
<NET-CHANGE-FROM-OPS>                          2954718
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          69214
<NUMBER-OF-SHARES-REDEEMED>                    (57698)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                       (6405146)
<ACCUMULATED-NII-PRIOR>                          11723
<ACCUMULATED-GAINS-PRIOR>                      1109295
<OVERDISTRIB-NII-PRIOR>                              0
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<AVERAGE-NET-ASSETS>                            316535
<PER-SHARE-NAV-BEGIN>                            13.44
<PER-SHARE-NII>                                 (0.03)
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<PER-SHARE-NAV-END>                              14.60
<EXPENSE-RATIO>                                   1.10
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS SAYLES FUNDS
<SERIES>
   <NUMBER> 021
   <NAME> LOOMIS SAYLES CORE VALUE FUND
       
<S>                             <C>                     
<PERIOD-TYPE>                   6-MOS                   
<FISCAL-YEAR-END>                          DEC-31-1997            
<PERIOD-START>                             JAN-01-1997             
<PERIOD-END>                               JUN-30-1997             
<INVESTMENTS-AT-COST>                         40774730             
<INVESTMENTS-AT-VALUE>                        53105819             
<RECEIVABLES>                                   119393             
<ASSETS-OTHER>                                   20520             
<OTHER-ITEMS-ASSETS>                                 0             
<TOTAL-ASSETS>                                53245732             
<PAYABLE-FOR-SECURITIES>                        229807                  
<SENIOR-LONG-TERM-DEBT>                              0                  
<OTHER-ITEMS-LIABILITIES>                       100158                  
<TOTAL-LIABILITIES>                             329965                  
<SENIOR-EQUITY>                                      0                  
<PAID-IN-CAPITAL-COMMON>                      35506711                
<SHARES-COMMON-STOCK>                          2849946                
<SHARES-COMMON-PRIOR>                          2801661                
<ACCUMULATED-NII-CURRENT>                        29546                       
<OVERDISTRIBUTION-NII>                               0                       
<ACCUMULATED-NET-GAINS>                        4798421                
<OVERDISTRIBUTION-GAINS>                             0                
<ACCUM-APPREC-OR-DEPREC>                      12331089                
<NET-ASSETS>                                  52915767                
<DIVIDEND-INCOME>                               425700                
<INTEREST-INCOME>                                35717                
<OTHER-INCOME>                                       0                
<EXPENSES-NET>                                (199740)                
<NET-INVESTMENT-INCOME>                         261677                
<REALIZED-GAINS-CURRENT>                       3820588                
<APPREC-INCREASE-CURRENT>                      3743153                
<NET-CHANGE-FROM-OPS>                          7825418                
<EQUALIZATION>                                       0                
<DISTRIBUTIONS-OF-INCOME>                            0                
<DISTRIBUTIONS-OF-GAINS>                             0                
<DISTRIBUTIONS-OTHER>                                0                
<NUMBER-OF-SHARES-SOLD>                         416813                
<NUMBER-OF-SHARES-REDEEMED>                   (368528)                
<SHARES-REINVESTED>                                  0                
<NET-CHANGE-IN-ASSETS>                         9200312               
<ACCUMULATED-NII-PRIOR>                          17869                       
<ACCUMULATED-GAINS-PRIOR>                       977833                       
<OVERDISTRIB-NII-PRIOR>                              0                       
<OVERDIST-NET-GAINS-PRIOR>                           0                       
<GROSS-ADVISORY-FEES>                           117454                  
<INTEREST-EXPENSE>                                   0                  
<GROSS-EXPENSE>                                      0                  
<AVERAGE-NET-ASSETS>                          47195119                  
<PER-SHARE-NAV-BEGIN>                            15.60                  
<PER-SHARE-NII>                                   0.09                  
<PER-SHARE-GAIN-APPREC>                           2.70                  
<PER-SHARE-DIVIDEND>                              0.00                  
<PER-SHARE-DISTRIBUTIONS>                         0.00                  
<RETURNS-OF-CAPITAL>                              0.00                  
<PER-SHARE-NAV-END>                              18.39                  
<EXPENSE-RATIO>                                   0.85                  
<AVG-DEBT-OUTSTANDING>                               0                  
<AVG-DEBT-PER-SHARE>                                 0                       
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS, SAYLES & COMPANY, L.P.
<SERIES>
   <NUMBER> 022
   <NAME> LOOMIS SAYLES CORE VALUE FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                         40774730
<INVESTMENTS-AT-VALUE>                        53105819
<RECEIVABLES>                                   119393
<ASSETS-OTHER>                                   20520
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                53245732
<PAYABLE-FOR-SECURITIES>                        229807
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       100158
<TOTAL-LIABILITIES>                             329965
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                      35506711
<SHARES-COMMON-STOCK>                            27948
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                       279546
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        4798421
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<ACCUM-APPREC-OR-DEPREC>                      12331089
<NET-ASSETS>                                  52915767
<DIVIDEND-INCOME>                               425700
<INTEREST-INCOME>                                35717
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                (199740)
<NET-INVESTMENT-INCOME>                         261677
<REALIZED-GAINS-CURRENT>                       3820588
<APPREC-INCREASE-CURRENT>                      3743153
<NET-CHANGE-FROM-OPS>                          7825418
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          58694
<NUMBER-OF-SHARES-REDEEMED>                    (30746)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                         9200312
<ACCUMULATED-NII-PRIOR>                          17869
<ACCUMULATED-GAINS-PRIOR>                       977833     
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           117454
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                      0
<AVERAGE-NET-ASSETS>                            175705
<PER-SHARE-NAV-BEGIN>                            15.60
<PER-SHARE-NII>                                   0.02
<PER-SHARE-GAIN-APPREC>                           2.74
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              18.36
<EXPENSE-RATIO>                                   1.10
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS,SAYLES & COMPANY, L.P.
<SERIES>
   <NUMBER> 031
   <NAME> LOOMIS SAYLES SMALL CAP VALUE FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                        170436271
<INVESTMENTS-AT-VALUE>                       199126242
<RECEIVABLES>                                  2315256
<ASSETS-OTHER>                                   16201
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               201457699
<PAYABLE-FOR-SECURITIES>                       1299828
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       298471
<TOTAL-LIABILITIES>                            1598299
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     152747661
<SHARES-COMMON-STOCK>                          9666539
<SHARES-COMMON-PRIOR>                          9406474
<ACCUMULATED-NII-CURRENT>                       798172
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       17623596
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      28689971
<NET-ASSETS>                                 199850036
<DIVIDEND-INCOME>                              1076487
<INTEREST-INCOME>                               511062
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                (856851)
<NET-INVESTMENT-INCOME>                         730698
<REALIZED-GAINS-CURRENT>                      15546648
<APPREC-INCREASE-CURRENT>                      6238970
<NET-CHANGE-FROM-OPS>                         22516316
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        1524774
<NUMBER-OF-SHARES-REDEEMED>                  (1264710)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                        36234532
<ACCUMULATED-NII-PRIOR>                          67474
<ACCUMULATED-GAINS-PRIOR>                      2076948
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           659706
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 866215
<AVERAGE-NET-ASSETS>                         171809485
<PER-SHARE-NAV-BEGIN>                            17.39
<PER-SHARE-NII>                                   0.07
<PER-SHARE-GAIN-APPREC>                           2.19
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              19.65
<EXPENSE-RATIO>                                   0.97
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS, SAYLES & COMPANY, L.P.
<SERIES>
   <NUMBER> 032
   <NAME> LOOMIS SAYLES SMALL CAP VALUE FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                        170436271
<INVESTMENTS-AT-VALUE>                       199126242
<RECEIVABLES>                                  2315256
<ASSETS-OTHER>                                   16201
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               201457699
<PAYABLE-FOR-SECURITIES>                       1299828
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       298471
<TOTAL-LIABILITIES>                            1598299
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     152747661
<SHARES-COMMON-STOCK>                           504343
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                       798172
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       17623596
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      28689971
<NET-ASSETS>                                 199850036
<DIVIDEND-INCOME>                              1076487
<INTEREST-INCOME>                               511062
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                (856851)
<NET-INVESTMENT-INCOME>                         730698
<REALIZED-GAINS-CURRENT>                      15546648
<APPREC-INCREASE-CURRENT>                      6238970
<NET-CHANGE-FROM-OPS>                         22516316
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         579565
<NUMBER-OF-SHARES-REDEEMED>                    (75222)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                        36234532
<ACCUMULATED-NII-PRIOR>                          67474
<ACCUMULATED-GAINS-PRIOR>                      2076948
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           659706
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 866215
<AVERAGE-NET-ASSETS>                           5570081
<PER-SHARE-NAV-BEGIN>                            17.39
<PER-SHARE-NII>                                   0.03
<PER-SHARE-GAIN-APPREC>                           2.20
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              19.62
<EXPENSE-RATIO>                                   1.25
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000874964
<NAME> LOOMIS, SAYLES & COMPANY, L.P.
<SERIES>
   <NUMBER> 061
   <NAME> LOOMIS SAYLES BOND FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                        837887322
<INVESTMENTS-AT-VALUE>                       866728636
<RECEIVABLES>                                 25163902
<ASSETS-OTHER>                                  203143
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               892095681
<PAYABLE-FOR-SECURITIES>                       6722512
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      1203946
<TOTAL-LIABILITIES>                            7926458
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     835834329
<SHARES-COMMON-STOCK>                         67620961
<SHARES-COMMON-PRIOR>                         43707558
<ACCUMULATED-NII-CURRENT>                     13998161
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        5501584
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      28835149
<NET-ASSETS>                                 884169223
<DIVIDEND-INCOME>                              1018788
<INTEREST-INCOME>                             28032580
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               (2617379)
<NET-INVESTMENT-INCOME>                       26433989
<REALIZED-GAINS-CURRENT>                       4539781
<APPREC-INCREASE-CURRENT>                      9973177
<NET-CHANGE-FROM-OPS>                         40946947
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                   (12779633)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                       29645056
<NUMBER-OF-SHARES-REDEEMED>                  (6598371)
<SHARES-REINVESTED>                             866718
<NET-CHANGE-IN-ASSETS>                       342925410
<ACCUMULATED-NII-PRIOR>                         537972
<ACCUMULATED-GAINS-PRIOR>                       961804
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          2084083
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                2810225
<AVERAGE-NET-ASSETS>                         691556636
<PER-SHARE-NAV-BEGIN>                            12.38
<PER-SHARE-NII>                                   0.42
<PER-SHARE-GAIN-APPREC>                           0.26
<PER-SHARE-DIVIDEND>                            (0.23)
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              12.83
<EXPENSE-RATIO>                                   0.75
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS, SAYLES & COMPANY, L.P.
<SERIES>
   <NUMBER> 062
   <NAME> LOOMIS SAYLES BOND FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                        837887322
<INVESTMENTS-AT-VALUE>                       866728636
<RECEIVABLES>                                 25163902
<ASSETS-OTHER>                                  203143
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               892095681
<PAYABLE-FOR-SECURITIES>                       6722512
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      1203946
<TOTAL-LIABILITIES>                            7926458
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     835834329
<SHARES-COMMON-STOCK>                          1317748
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                     13998161
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        5501584
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      28835149
<NET-ASSETS>                                 884169223
<DIVIDEND-INCOME>                              1018788
<INTEREST-INCOME>                             28032580
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               (2617379)
<NET-INVESTMENT-INCOME>                       26433989
<REALIZED-GAINS-CURRENT>                       4539781
<APPREC-INCREASE-CURRENT>                      9973177
<NET-CHANGE-FROM-OPS>                         40946947
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (194168)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        1436517
<NUMBER-OF-SHARES-REDEEMED>                   (131645)
<SHARES-REINVESTED>                              12876
<NET-CHANGE-IN-ASSETS>                       342925410
<ACCUMULATED-NII-PRIOR>                         537972
<ACCUMULATED-GAINS-PRIOR>                       961804
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          2084083
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                2810225
<AVERAGE-NET-ASSETS>                           9143459
<PER-SHARE-NAV-BEGIN>                            12.38
<PER-SHARE-NII>                                   0.33
<PER-SHARE-GAIN-APPREC>                           0.33
<PER-SHARE-DIVIDEND>                            (0.22)
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              12.82
<EXPENSE-RATIO>                                   1.00
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS SAYLES FUNDS
<SERIES>
   <NUMBER> 071
   <NAME> LOOMIS SAYLES MUNICIPAL BOND FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                          8074606
<INVESTMENTS-AT-VALUE>                         8335122
<RECEIVABLES>                                   134200
<ASSETS-OTHER>                                   43931
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 8513253
<PAYABLE-FOR-SECURITIES>                        111121
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        48876
<TOTAL-LIABILITIES>                             159997
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       8049227
<SHARES-COMMON-STOCK>                           736256
<SHARES-COMMON-PRIOR>                           770833
<ACCUMULATED-NII-CURRENT>                         3777
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          39736
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        260516
<NET-ASSETS>                                   8353256
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                               235668
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (25138)
<NET-INVESTMENT-INCOME>                         210530
<REALIZED-GAINS-CURRENT>                         17151
<APPREC-INCREASE-CURRENT>                        16684
<NET-CHANGE-FROM-OPS>                           244365
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (210530)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          31782
<NUMBER-OF-SHARES-REDEEMED>                    (78069)
<SHARES-REINVESTED>                              11710
<NET-CHANGE-IN-ASSETS>                        (347892)
<ACCUMULATED-NII-PRIOR>                           3777
<ACCUMULATED-GAINS-PRIOR>                        22585
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            16759
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  68927
<AVERAGE-NET-ASSETS>                           8448620
<PER-SHARE-NAV-BEGIN>                            11.29
<PER-SHARE-NII>                                   0.28
<PER-SHARE-GAIN-APPREC>                           0.06
<PER-SHARE-DIVIDEND>                            (0.28)
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              11.35
<EXPENSE-RATIO>                                   0.60
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS SAYLES FUNDS
<SERIES> 0000872649
   <NUMBER> 081
   <NAME> LOOMIS SAYLES US GOVERNMENT SECURITIES FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                         13061345
<INVESTMENTS-AT-VALUE>                        13119621
<RECEIVABLES>                                   118139
<ASSETS-OTHER>                                   89707
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                13327467
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        46701
<TOTAL-LIABILITIES>                              46701
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                      14256452
<SHARES-COMMON-STOCK>                          1304084
<SHARES-COMMON-PRIOR>                          1407580
<ACCUMULATED-NII-CURRENT>                       216553
<OVERDISTRIBUTION-NII>                               0 
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                     (1250506)
<ACCUM-APPREC-OR-DEPREC>                         58267
<NET-ASSETS>                                  13280766
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                               464948
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (38854)
<NET-INVESTMENT-INCOME>                         426094
<REALIZED-GAINS-CURRENT>                         43635
<APPREC-INCREASE-CURRENT>                     (139961)
<NET-CHANGE-FROM-OPS>                           329768
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (204599)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          91000
<NUMBER-OF-SHARES-REDEEMED>                   (214541)
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<INTEREST-EXPENSE>                                   0
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<PER-SHARE-NAV-BEGIN>                            10.08
<PER-SHARE-NII>                                   0.33
<PER-SHARE-GAIN-APPREC>                         (0.07)
<PER-SHARE-DIVIDEND>                            (0.16)
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<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.18
<EXPENSE-RATIO>                                   0.60
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS SAYLES FUNDS
<SERIES>
   <NUMBER> 091
   <NAME> LOOMIS SAYLES SHORT-TERM BOND FUND
       
<S>                             <C>                     
<PERIOD-TYPE>                   6-MOS                   
<FISCAL-YEAR-END>                          DEC-31-1997            
<PERIOD-START>                             JAN-01-1997            
<PERIOD-END>                               JUN-30-1997            
<INVESTMENTS-AT-COST>                         15904799            
<INVESTMENTS-AT-VALUE>                        15973824               
<RECEIVABLES>                                   232275               
<ASSETS-OTHER>                                   67187               
<OTHER-ITEMS-ASSETS>                                 0                      
<TOTAL-ASSETS>                                16273286                
<PAYABLE-FOR-SECURITIES>                             0                       
<SENIOR-LONG-TERM-DEBT>                              0                       
<OTHER-ITEMS-LIABILITIES>                        85355                   
<TOTAL-LIABILITIES>                              85355                   
<SENIOR-EQUITY>                                      0                       
<PAID-IN-CAPITAL-COMMON>                      16584821                
<SHARES-COMMON-STOCK>                          1655051                
<SHARES-COMMON-PRIOR>                          1879790                       
<ACCUMULATED-NII-CURRENT>                        10736                   
<OVERDISTRIBUTION-NII>                               0                      
<ACCUMULATED-NET-GAINS>                              0                       
<OVERDISTRIBUTION-GAINS>                      (476651)                
<ACCUM-APPREC-OR-DEPREC>                         69025                
<NET-ASSETS>                                  16187931                
<DIVIDEND-INCOME>                                    0                      
<INTEREST-INCOME>                               545696                  
<OTHER-INCOME>                                       0                       
<EXPENSES-NET>                                 (39909)                 
<NET-INVESTMENT-INCOME>                         505787                 
<REALIZED-GAINS-CURRENT>                       (52124)                 
<APPREC-INCREASE-CURRENT>                       (5580)                 
<NET-CHANGE-FROM-OPS>                           448083                 
<EQUALIZATION>                                       0                     
<DISTRIBUTIONS-OF-INCOME>                     (501239)                  
<DISTRIBUTIONS-OF-GAINS>                             0                  
<DISTRIBUTIONS-OTHER>                                0                  
<NUMBER-OF-SHARES-SOLD>                         532505                  
<NUMBER-OF-SHARES-REDEEMED>                   (803736)                 
<SHARES-REINVESTED>                              46492                 
<NET-CHANGE-IN-ASSETS>                       (2040736)               
<ACCUMULATED-NII-PRIOR>                          10736                    
<ACCUMULATED-GAINS-PRIOR>                            0                       
<OVERDISTRIB-NII-PRIOR>                       (424525)                
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<GROSS-ADVISORY-FEES>                            19862                   
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<GROSS-EXPENSE>                                  98494                       
<AVERAGE-NET-ASSETS>                          15869505                   
<PER-SHARE-NAV-BEGIN>                             9.70                   
<PER-SHARE-NII>                                   0.31                   
<PER-SHARE-GAIN-APPREC>                         (0.03)                  
<PER-SHARE-DIVIDEND>                            (0.31)                  
<PER-SHARE-DISTRIBUTIONS>                         0.00                  
<RETURNS-OF-CAPITAL>                              0.00                  
<PER-SHARE-NAV-END>                               9.67                  
<EXPENSE-RATIO>                                   0.50                    
<AVG-DEBT-OUTSTANDING>                               0                       
<AVG-DEBT-PER-SHARE>                                 0                       
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000874964
<NAME> LOOMIS, SAYLES & COMPANY, L.P.
<SERIES>
   <NUMBER> 092
   <NAME> LOOMIS SAYLES SHORT-TERM BOND FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                         15904799
<INVESTMENTS-AT-VALUE>                        15973824
<RECEIVABLES>                                   232275
<ASSETS-OTHER>                                   67187
<OTHER-ITEMS-ASSETS>                                 0
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<PAYABLE-FOR-SECURITIES>                             0
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<OTHER-ITEMS-LIABILITIES>                        85355
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<INTEREST-INCOME>                               545696
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<REALIZED-GAINS-CURRENT>                       (52124)
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<NET-CHANGE-FROM-OPS>                           448083
<EQUALIZATION>                                       0
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<NUMBER-OF-SHARES-REDEEMED>                    (12361)
<SHARES-REINVESTED>                                464
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<ACCUMULATED-NII-PRIOR>                          10736
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                       (424525)
<OVERDIST-NET-GAINS-PRIOR>                           0
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<INTEREST-EXPENSE>                                   0
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<PER-SHARE-NII>                                   0.30
<PER-SHARE-GAIN-APPREC>                         (0.03)
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<PER-SHARE-NAV-END>                               9.67
<EXPENSE-RATIO>                                   0.75
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<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS SAYLES FUNDS
<SERIES>
   <NUMBER> 171
   <NAME> LOOMIS SAYLES MID-CAP GROWTH FUND
       
<S>                             <C>                    
<PERIOD-TYPE>                   6-MOS                   
<FISCAL-YEAR-END>                          DEC-31-1997             
<PERIOD-START>                             JAN-01-1997             
<PERIOD-END>                               JUN-30-1997             
<INVESTMENTS-AT-COST>                          1472925             
<INVESTMENTS-AT-VALUE>                         1526962                 
<RECEIVABLES>                                      186                 
<ASSETS-OTHER>                                  175436                 
<OTHER-ITEMS-ASSETS>                                 0                 
<TOTAL-ASSETS>                                 1702584                 
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<SENIOR-LONG-TERM-DEBT>                              0                 
<OTHER-ITEMS-LIABILITIES>                      (48526)                 
<TOTAL-LIABILITIES>                            (48526)                 
<SENIOR-EQUITY>                                      0                 
<PAID-IN-CAPITAL-COMMON>                       1569321                 
<SHARES-COMMON-STOCK>                           148220                 
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<ACCUMULATED-NET-GAINS>                          31805                 
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<NET-ASSETS>                                   1654058                 
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<NET-INVESTMENT-INCOME>                         (1105)                 
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<APPREC-INCREASE-CURRENT>                        54037                  
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<EXPENSE-RATIO>                                   1.00                 
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS, SAYLES & COMPANY, L.P.
<SERIES>
   <NUMBER> 172
   <NAME> LOOMIS SAYLES MID-CAP GROWTH FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
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<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                 (0.02)
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<PER-SHARE-NAV-END>                              10.72
<EXPENSE-RATIO>                                   1.25
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<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS SAYLES FUNDS
<SERIES>
   <NUMBER> 161
   <NAME> LOOMIS SAYLES MID-CAP VALUE FUND
       
<S>                             <C>                     
<PERIOD-TYPE>                   6-MOS                   
<FISCAL-YEAR-END>                          DEC-31-1997             
<PERIOD-START>                             JAN-01-1997             
<PERIOD-END>                               JUN-30-1997             
<INVESTMENTS-AT-COST>                          2244748             
<INVESTMENTS-AT-VALUE>                         2444653             
<RECEIVABLES>                                     2505             
<ASSETS-OTHER>                                   85199             
<OTHER-ITEMS-ASSETS>                                 0                       
<TOTAL-ASSETS>                                 2532357                 
<PAYABLE-FOR-SECURITIES>                         25597                 
<SENIOR-LONG-TERM-DEBT>                              0                 
<OTHER-ITEMS-LIABILITIES>                        51168                 
<TOTAL-LIABILITIES>                              76765                 
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<SHARES-COMMON-STOCK>                           210574                 
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<OVERDISTRIBUTION-GAINS>                             0                 
<ACCUM-APPREC-OR-DEPREC>                        199905                 
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<NET-INVESTMENT-INCOME>                           9025                 
<REALIZED-GAINS-CURRENT>                         39770                 
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<PER-SHARE-NAV-END>                              11.37                   
<EXPENSE-RATIO>                                   1.00                   
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS, SAYLES & COMPANY, L.P.
<SERIES>
   <NUMBER> 162
   <NAME> LOOMIS SAYLES MID-CAP VALUE FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                          2244748
<INVESTMENTS-AT-VALUE>                         2444653
<RECEIVABLES>                                     2505
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<PAYABLE-FOR-SECURITIES>                         25597
<SENIOR-LONG-TERM-DEBT>                              0
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<REALIZED-GAINS-CURRENT>                         39770
<APPREC-INCREASE-CURRENT>                       199905
<NET-CHANGE-FROM-OPS>                           248700
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<EXPENSE-RATIO>                                   1.25
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS, SAYLES & COMPANY L.P.
<SERIES>
   <NUMBER> 121
   <NAME> LOOMIS SAYLES SMALL CAP GROWTH FUND 
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS, SAYLES & COMPANY L.P.
<SERIES>
   <NUMBER> 122
   <NAME> LOOMIS SAYLES SMALL CAP GROWTH FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                          2895031
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<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       3128667
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<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
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<OVERDISTRIBUTION-GAINS>                      (231160)
<ACCUM-APPREC-OR-DEPREC>                        428254
<NET-ASSETS>                                   3319366
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<INTEREST-INCOME>                                 3372
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (11252)
<NET-INVESTMENT-INCOME>                         (6395)
<REALIZED-GAINS-CURRENT>                      (231160)
<APPREC-INCREASE-CURRENT>                       428254
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<EQUALIZATION>                                       0
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<NUMBER-OF-SHARES-SOLD>                          59460
<NUMBER-OF-SHARES-REDEEMED>                     (6469)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                         3319346
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
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<GROSS-ADVISORY-FEES>                             8215
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  86394
<AVERAGE-NET-ASSETS>                            243332
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                 (0.02)
<PER-SHARE-GAIN-APPREC>                           0.30
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.28
<EXPENSE-RATIO>                                   1.25
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS SAYLES FUNDS
<SERIES>
   <NUMBER> 151
   <NAME> LOOMIS SAYLES STRATEGIC VALUE FUND
       
<S>                             <C>                     
<PERIOD-TYPE>                   6-MOS                   
<FISCAL-YEAR-END>                          DEC-31-1997            
<PERIOD-START>                             JAN-01-1997            
<PERIOD-END>                               JUN-30-1997            
<INVESTMENTS-AT-COST>                           825251               
<INVESTMENTS-AT-VALUE>                          932500               
<RECEIVABLES>                                      502               
<ASSETS-OTHER>                                   85465               
<OTHER-ITEMS-ASSETS>                                 0         
<TOTAL-ASSETS>                                 1018467               
<PAYABLE-FOR-SECURITIES>                             0               
<SENIOR-LONG-TERM-DEBT>                              0               
<OTHER-ITEMS-LIABILITIES>                        46092               
<TOTAL-LIABILITIES>                              46092               
<SENIOR-EQUITY>                                      0                     
<PAID-IN-CAPITAL-COMMON>                        865627                 
<SHARES-COMMON-STOCK>                            60737                 
<SHARES-COMMON-PRIOR>                                0                 
<ACCUMULATED-NII-CURRENT>                          614                 
<OVERDISTRIBUTION-NII>                               0                 
<ACCUMULATED-NET-GAINS>                              0                 
<OVERDISTRIBUTION-GAINS>                        (1115)                 
<ACCUM-APPREC-OR-DEPREC>                        107249                 
<NET-ASSETS>                                    972375                 
<DIVIDEND-INCOME>                                 3364                 
<INTEREST-INCOME>                                  504                 
<OTHER-INCOME>                                       0                 
<EXPENSES-NET>                                  (3254)                 
<NET-INVESTMENT-INCOME>                            614                 
<REALIZED-GAINS-CURRENT>                        (1115)                 
<APPREC-INCREASE-CURRENT>                       107249                 
<NET-CHANGE-FROM-OPS>                           106748                 
<EQUALIZATION>                                       0                 
<DISTRIBUTIONS-OF-INCOME>                            0                 
<DISTRIBUTIONS-OF-GAINS>                             0                 
<DISTRIBUTIONS-OTHER>                                0                 
<NUMBER-OF-SHARES-SOLD>                          61057                 
<NUMBER-OF-SHARES-REDEEMED>                      (320)                 
<SHARES-REINVESTED>                                  0                 
<NET-CHANGE-IN-ASSETS>                          972355                 
<ACCUMULATED-NII-PRIOR>                              0                 
<ACCUMULATED-GAINS-PRIOR>                            0                 
<OVERDISTRIB-NII-PRIOR>                              0                       
<OVERDIST-NET-GAINS-PRIOR>                           0                       
<GROSS-ADVISORY-FEES>                             1604                    
<INTEREST-EXPENSE>                                   0                    
<GROSS-EXPENSE>                                  60983                        
<AVERAGE-NET-ASSETS>                            611660                   
<PER-SHARE-NAV-BEGIN>                            10.00                   
<PER-SHARE-NII>                                 (0.01)                   
<PER-SHARE-GAIN-APPREC>                           1.64                   
<PER-SHARE-DIVIDEND>                              0.00                   
<PER-SHARE-DISTRIBUTIONS>                         0.00                   
<RETURNS-OF-CAPITAL>                              0.00                   
<PER-SHARE-NAV-END>                              11.63                   
<EXPENSE-RATIO>                                   1.00                   
<AVG-DEBT-OUTSTANDING>                               0                   
<AVG-DEBT-PER-SHARE>                                 0                   
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS, SAYLES & COMPANY, L.P.
<SERIES>
   <NUMBER> 102
   <NAME> LOOMIS SAYLES WORLDWIDE FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                          7100102
<INVESTMENTS-AT-VALUE>                         7530864
<RECEIVABLES>                                    78705
<ASSETS-OTHER>                                   75562
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 7685131
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        58020
<TOTAL-LIABILITIES>                              58020
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       6970632
<SHARES-COMMON-STOCK>                             1674
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                       152677
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          73477
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        430325
<NET-ASSETS>                                   7627111
<DIVIDEND-INCOME>                                39344
<INTEREST-INCOME>                               135712
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (34650)
<NET-INVESTMENT-INCOME>                         140406
<REALIZED-GAINS-CURRENT>                         83592
<APPREC-INCREASE-CURRENT>                       137774
<NET-CHANGE-FROM-OPS>                           361772
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
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<NUMBER-OF-SHARES-SOLD>                           1674
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                         2437618
<ACCUMULATED-NII-PRIOR>                          12271
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                     (10115)
<GROSS-ADVISORY-FEES>                            25982
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 102093
<AVERAGE-NET-ASSETS>                              5338
<PER-SHARE-NAV-BEGIN>                            10.63
<PER-SHARE-NII>                                   0.06
<PER-SHARE-GAIN-APPREC>                           0.47
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              11.16
<EXPENSE-RATIO>                                   1.25
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> 
<SERIES>
   <NUMBER> 152
   <NAME> LOOMIS SAYLES STRATEGIC VALUE FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                           825251
<INVESTMENTS-AT-VALUE>                          932500
<RECEIVABLES>                                      502
<ASSETS-OTHER>                                   85465
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 1018467
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        46092
<TOTAL-LIABILITIES>                              46092
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        865627
<SHARES-COMMON-STOCK>                            22902
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                          614
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                        (1115)
<ACCUM-APPREC-OR-DEPREC>                        107249
<NET-ASSETS>                                    972375
<DIVIDEND-INCOME>                                 3364
<INTEREST-INCOME>                                  504
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  (3254)
<NET-INVESTMENT-INCOME>                            614
<REALIZED-GAINS-CURRENT>                        (1115)
<APPREC-INCREASE-CURRENT>                       107249
<NET-CHANGE-FROM-OPS>                           106748
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          23197
<NUMBER-OF-SHARES-REDEEMED>                      (295)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          972355
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             1604
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  60983
<AVERAGE-NET-ASSETS>                             38527
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                   0.00
<PER-SHARE-GAIN-APPREC>                           1.61
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              11.61
<EXPENSE-RATIO>                                   1.25
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS SAYLES FUNDS
<SERIES>
   <NUMBER> 101
   <NAME> LOOMIS SAYLES WORLDWIDE FUND
       
<S>                             <C>                     
<PERIOD-TYPE>                   6-MOS                   
<FISCAL-YEAR-END>                          DEC-31-1997             
<PERIOD-START>                             JAN-01-1997             
<PERIOD-END>                               JUN-30-1997             
<INVESTMENTS-AT-COST>                          7100102             
<INVESTMENTS-AT-VALUE>                         7530864             
<RECEIVABLES>                                    78705             
<ASSETS-OTHER>                                   75562             
<OTHER-ITEMS-ASSETS>                                 0                 
<TOTAL-ASSETS>                                 7685131                 
<PAYABLE-FOR-SECURITIES>                             0                 
<SENIOR-LONG-TERM-DEBT>                              0                 
<OTHER-ITEMS-LIABILITIES>                        58020                 
<TOTAL-LIABILITIES>                              58020                 
<SENIOR-EQUITY>                                      0                 
<PAID-IN-CAPITAL-COMMON>                       6970632                 
<SHARES-COMMON-STOCK>                           680893                 
<SHARES-COMMON-PRIOR>                           488180                 
<ACCUMULATED-NII-CURRENT>                       152677                 
<OVERDISTRIBUTION-NII>                               0                 
<ACCUMULATED-NET-GAINS>                          73477                 
<OVERDISTRIBUTION-GAINS>                             0                 
<ACCUM-APPREC-OR-DEPREC>                        430325                 
<NET-ASSETS>                                   7627111                 
<DIVIDEND-INCOME>                                39344                 
<INTEREST-INCOME>                               135712                 
<OTHER-INCOME>                                       0                 
<EXPENSES-NET>                                 (34650)                 
<NET-INVESTMENT-INCOME>                         140406                 
<REALIZED-GAINS-CURRENT>                         83592                 
<APPREC-INCREASE-CURRENT>                       137774                 
<NET-CHANGE-FROM-OPS>                           361772                 
<EQUALIZATION>                                       0                 
<DISTRIBUTIONS-OF-INCOME>                            0                 
<DISTRIBUTIONS-OF-GAINS>                             0                 
<DISTRIBUTIONS-OTHER>                                0           
<NUMBER-OF-SHARES-SOLD>                         207409                 
<NUMBER-OF-SHARES-REDEEMED>                    (14696)                 
<SHARES-REINVESTED>                                  0                 
<NET-CHANGE-IN-ASSETS>                         2437618                 
<ACCUMULATED-NII-PRIOR>                          12271                 
<ACCUMULATED-GAINS-PRIOR>                            0                 
<OVERDISTRIB-NII-PRIOR>                              0                 
<OVERDIST-NET-GAINS-PRIOR>                     (10115)                 
<GROSS-ADVISORY-FEES>                            25982                 
<INTEREST-EXPENSE>                                   0                 
<GROSS-EXPENSE>                                 102093                 
<AVERAGE-NET-ASSETS>                           6980673                 
<PER-SHARE-NAV-BEGIN>                            10.63                 
<PER-SHARE-NII>                                   0.20                 
<PER-SHARE-GAIN-APPREC>                           0.34                 
<PER-SHARE-DIVIDEND>                                 0                 
<PER-SHARE-DISTRIBUTIONS>                            0                 
<RETURNS-OF-CAPITAL>                                 0                 
<PER-SHARE-NAV-END>                              11.17                 
<EXPENSE-RATIO>                                   1.00                 
<AVG-DEBT-OUTSTANDING>                               0                
<AVG-DEBT-PER-SHARE>                                 0                      
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS, SAYLES & COMPANY, L.P.
<SERIES>
   <NUMBER> 131
   <NAME> LOOMIS SAYLES INVESTMENT GRADE BOND FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                          1817423
<INVESTMENTS-AT-VALUE>                         1864781
<RECEIVABLES>                                    72493
<ASSETS-OTHER>                                   93813
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 2031087
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        49826
<TOTAL-LIABILITIES>                              49826
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       1902265
<SHARES-COMMON-STOCK>                           164385
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                        33578
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                        (1915)
<ACCUM-APPREC-OR-DEPREC>                         47333
<NET-ASSETS>                                   1981261
<DIVIDEND-INCOME>                                 1770
<INTEREST-INCOME>                                59952
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  (4710)
<NET-INVESTMENT-INCOME>                          57012
<REALIZED-GAINS-CURRENT>                        (1915)
<APPREC-INCREASE-CURRENT>                        47333
<NET-CHANGE-FROM-OPS>                           102430
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      (21072)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         162840
<NUMBER-OF-SHARES-REDEEMED>                      (502)
<SHARES-REINVESTED>                               2047
<NET-CHANGE-IN-ASSETS>                         1981241
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             3302
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  75362
<AVERAGE-NET-ASSETS>                           1535779
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                   0.32
<PER-SHARE-GAIN-APPREC>                           0.27
<PER-SHARE-DIVIDEND>                            (0.13)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.46
<EXPENSE-RATIO>                                   0.55
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS, SAYLES & COMPANY L.P.
<SERIES>
   <NUMBER> 132
   <NAME> LOOMIS SAYLES INVESTMENT GRADE BOND FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                          1817423
<INVESTMENTS-AT-VALUE>                         1864781
<RECEIVABLES>                                    72493
<ASSETS-OTHER>                                   93813
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 2031087
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        49826
<TOTAL-LIABILITIES>                              49826
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       1902265
<SHARES-COMMON-STOCK>                            25131
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                        33578
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                        (1915)
<ACCUM-APPREC-OR-DEPREC>                         47333
<NET-ASSETS>                                   1981261
<DIVIDEND-INCOME>                                 1770
<INTEREST-INCOME>                                59952
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  (4710)
<NET-INVESTMENT-INCOME>                          57012
<REALIZED-GAINS-CURRENT>                        (1915)
<APPREC-INCREASE-CURRENT>                        47333
<NET-CHANGE-FROM-OPS>                           102430
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       (2362)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          26201
<NUMBER-OF-SHARES-REDEEMED>                     (1304)
<SHARES-REINVESTED>                                234
<NET-CHANGE-IN-ASSETS>                         1981241
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             3302
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  75362
<AVERAGE-NET-ASSETS>                            137949
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                   0.22
<PER-SHARE-GAIN-APPREC>                           0.36
<PER-SHARE-DIVIDEND>                            (0.13)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.45
<EXPENSE-RATIO>                                   0.80
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000874964
<NAME> LOOMIS, SAYLES & COMPANY L.P.
<SERIES>
   <NUMBER> 141
   <NAME> LOOMIS SAYLES INTERMEDIATE MATURITY FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                          4649826
<INVESTMENTS-AT-VALUE>                         4681405
<RECEIVABLES>                                    68207
<ASSETS-OTHER>                                  140294
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 4890536
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        53189
<TOTAL-LIABILITIES>                              53189
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       4748104
<SHARES-COMMON-STOCK>                           469355
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                        52230
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           5434
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         31579
<NET-ASSETS>                                   4837347
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                79414
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  (6610)
<NET-INVESTMENT-INCOME>                          72804
<REALIZED-GAINS-CURRENT>                          5434
<APPREC-INCREASE-CURRENT>                        31579
<NET-CHANGE-FROM-OPS>                           109817
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      (20574)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         467874
<NUMBER-OF-SHARES-REDEEMED>                      (497)
<SHARES-REINVESTED>                               1978
<NET-CHANGE-IN-ASSETS>                         4837327
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             4798
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  63933
<AVERAGE-NET-ASSETS>                           2420081
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                   0.25
<PER-SHARE-GAIN-APPREC>                           0.09
<PER-SHARE-DIVIDEND>                            (0.14)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.20
<EXPENSE-RATIO>                                   0.55
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000872649
<NAME> LOOMIS, SAYLES & COMPANY, L.P.
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   <NAME> LOOMIS SAYLES INTERMEDIATE MATURITY FUND
       
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

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<NAME> LOOMIS,SAYLES & COMPANY,L.P.
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   <NAME> LOOMIS SAYLES HIGH YIELD FUND
       
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

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<CIK> 0000874964
<NAME> LOOMIS, SAYLES & COMPANY, L.P.
<SERIES>
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   <NAME> LOOMIS SAYLES HIGH YIELD FUND
       
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