VIRUS DISEASES OF PLANTS

THE need for a small book upon the subject of Plant Virus Diseases appeared during my teaching work at Leeds University and in the County of Yorkshire. The study of this subject is, indeed, developing rapidly, but it seemed that this was not sufficient justification for with holding a simple text-book from the student of Mycology or Plant Pathology. A comprehensive volume would be inappropriate, as yet, and would have a limited use. The aim of this book has therefore been to introduce the student to the phenorrfcria associated with Virus Diseases, rather than to provide him with descriptions of all known viroses it is typical rather than complete. Many pitfalls await the new worker on Virus Diseases, so it was decided to include descriptions of the various items of technique in common use. The list of references at the end of the volume will provide an introduction to the very extensive literature on the subject of Plant Viruses. In its compilation, accessibility and comprehensiveness o the papers quoted have been constantly in mind. The references cited in the text follow the general plan of the book, being representative, not exhaustive.Contents include