Gay's Illustrated Circle of Knowledge , forming A Household Library of Scientific and useful Information . A Standard Encyclopaedia , embracing outlines of universal history , portraits and biographis of eminent persons, illustrated experiments in natural philosophy and chemistry , electricity , etc. etc . Several hundred instructive illustrations, steel , wood , and in colors. Prepared by Col. Dexter R. Wright and others . Published in 1886 by Gay Brothers & Co., NY . Hardback in green cloth with edge wear and with small tears to cloth head and tail of the spine . Tips bumped and minor loss . 756 pages, prev. owner's name and date (1887) . Title page loose and chipped on the fore edge . No name on the nicely illustrated in color presentation page . Two great color illustrations of roses and sweet peas , and many other great period illustrations .