This fieldbook is intended primarily for the use of amateur students of nature who wish to learn the names and something of the habits of the snails found in Illinois. Its size and organization are such that it may conveniently be carried into the field by high school and college classes and other nature study groups. Information contained in this fieldbook is based on a collection of more than 20,000 specimens of Illinois Mollusca,
obtained principally by a detailed survey of the state. The financing of this survey was made possible by a small special appropriation to the Illinois Natural History Survey, available the biennium beginning July 1, 1931.
Publisher
Urbana :Illinois. Natural History Survey Division,1939.
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