Translated by J. Johnson SCROLL DOWN TO ORDER THIS TITLE. This book features four significant papers selected to represent the historical background of plant pathology. These papers individually and collectively have made a profound and lasting influence on subsequent virus research and reasoning. This book includes three early papers on tobacco mosaic and one on infectious variegation. 1942; 6" × 9" softcover; 62 pages; 6 illustrations ISBN 0-89054-008-X 4008X$22.00 ORDER ONLINE OR TOLL-FREE 1.800.328.7560 If for any reason you are unsatisfied with your purchase, return it within 30 days with a copy of your receipt for a full refund. © APS PRESS The American Phytopathological Society