‘An unabridged and unaltered republication of the work first published by Ginn and Company in 1902, to which has been added a new key to common groups of spiders and selected bibliography especially pepared for this edition by S.W. Frost, Professor Emeritus, Pennsylvania State University’. An introduction on the anatomy and habits of spiders, hints on where to find spiders, descriptions of more than 200 spiders common in the United States and a synoptic key. 221 pages plus index and publisher’s advertisements. Condition: Dover paper back- “designed for years of use”- with binding still firm and pages clean and bright.