Published by the New York State College of Agriculture at Cornell university, June 1925. These 92 pages contain extensive information on Bearded irises, including numerous B&W photos, Illustrations and detailed descriptions of more than 100 varieties. A new run has been printed in 2010 with better quality photo reproduction than previously available. This high-quality reprint is on archival paper, with a protective plastic cover. Spiral bound for easy opening and use in the garden! Our #1 seller in the quest for learning to see and recognize the details that help identify old irises.