THE aim of this book is to give in plain language some account of a small, but noteworthy, group of insects. I have avoided, whenever I could, using the technical terms of zoology. To avoid doing so entirely is impossible in a book which describes insects in some detail. No technical term has, I hope, been used without an explanation. Over thirty years have elapsed since Taschenberg's German book, Die Flohe, appeared. Our knowledge has made enormous strides since then. More species of flea are now known from the British Islands alone than were then known from the whole world. So far as I am...

The Use of Books and Libraries was first published in 1933. Minnesota Archive Editions uses digital technology to make long-unavailable books once again accessible, and are published unaltered from the original University of Minnesota Press editions.This is the tenth edition, revised, of the books of the same title by Harold G. Russell, Blanche E Moen, and Raymond H. Shove. A guide to reference books, it is intended primarily for use in courses in library instruction for college undergraduates. The material in this edition has been reorganized for more convenient use, following in general the...