New York: Nelson Doubleday, Inc. VG+/NONE 1927. Hardcover. Five volume set is bound in dark green with embossed illustration on front covers. All volumes are clean, straight & tight with only slight bumping and wear of spine edges from shelving and slight wear of other edges. Volume Four has a small line of what looks like white paint on the front cover, approximately 2 inches long; Volume III has a tiny frayed spot on the spine. Volume I is Knowing the Birds. Volume II is Mammals Every One Should Know. Volume III is all about Fish, Reptiles, Amphibians, Insects and Spiders. Volume IV is Color as Seen in the Animal World, Bird Houses and Shelters and Knowing the Flowers. Volume V is Knowing The Trees. All together in these nice little books there are 940 pages, 1,000 species are described, 700 illustrated and 200 in full color. ; Vol. 5; B/W & color illustrations; 8 x 5.5 inches .