Front Matter
p. 0
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Quantitative Studies in the Food of Spiders
Bilsing, S. W. pp. 215-260
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The Syrphid Fly, Mesogramma Marginata, and the Flowers of Apocynum
Osburn, Raymond C. pp. 261-266
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Descriptions of Diptera of the Families Anthomyidae and Scatophagidae (Part XII of Series)
Malloch, John R. pp. 267-291
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Bees and Wasps (Part XIII of Series)
Bequaert, J. pp. 292-298
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Back Matter
p. 999
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