<PAGE> PAGE 1
000 A000000 05/31/1999
000 C000000 0001021882
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010 A00AA01 THE VANGUARD GROUP, INC.
010 B00AA01 801-11953
010 C01AA01 MALVERN
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012 A00AA01 THE VANGUARD GROUP, INC.
012 B00AA01 84-772
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013 A00AA01 PRICEWATERHOUSECOOPERS LLP
013 B01AA01 PHILADELPHIA
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<PAGE> PAGE 2
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<PAGE> PAGE 3
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<PAGE> PAGE 4
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<PAGE> PAGE 5
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<PAGE> PAGE 6
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<PAGE> PAGE 7
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<PAGE> PAGE 8
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SIGNATURE GARY P. SOURA
TITLE MANAGER
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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<NAME> VANGUARD MONEY MARKET RESERVES
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<NAME> VANGUARD FEDERAL MONEY MARKET FUND
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