Birds in Their Relations to Man
A Manual of Economic Ornithology for the United States and Canada »

A Laboratory Guide For Beginners In Zoology
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Butterflies Worth Knowing
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Spraying Crops, Why, When, And How
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Our Trees, How to Know Them
Photographs from Nature by Arthur I. Emerson, with a Guide to Their Recognition at Any Season of the Year and Notes on Their Characteristics, Distribution, a... »

Nature Biographies
The Lives of Some Every-Day Butterflies; Moths; Grasshoppers and Flies »

The School Garden Book
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Butterflies Worth Knowing, By Clarence M
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Spraying Crops; Why, When, And How
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Birds in Their Relation to Man;
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