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This early scientific study remains valuable for students and researchers interested in the history of zoology and the understanding of invertebrate biology. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.