Originally published in 1922, this book is a layman's guide to insects written by a well-known former curator for the Smithsonian Institutes. Considered one of the twentieth-century's foremost authorities on insects, R. E. Snodgrass is accessible and knowledgeable. Even today, his book Principles of Insect Morphology, first published in 1936, is the best and most comprehensive publication on the subject of insect anatomy.