COLLEGE OF AGRICULTURE 345

LIBRARY
CLARENCE Scott HEAN, B.A., Librarian

1. Liprary Practice. I; 1 cr. The classification and arrangement of
books, filing of bulletins, use of card catalogs, periodical indexes, ab-
stract journals, public documents, standard reference works, includ-
ing handbooks in the various fields of knowledge, and the compiling
of bibliographies. Mr. Hean.

PLANT PATHOLOGY

GEORGE WANNAMAKER KEITT, Ph.D., Professor of Plant Pathology, Chair-
man

JAMES GEERE DICKSON, Ph.D., Professor of Plant Pathology

BENJAMIN MINGE DuGGAR, Ph.D., Professor of Botany and Plant Pathology

EDWARD MARTINIUS GILBERT, Ph.D., Professor of Botany and Plant Pathology

LEWIS RALPH JONES, Ph.D., Sc.D., Professor of Plant Pathology

RICHARD ENGLISH VAUGHAN, M.S., Professor of Plant Pathology

JOHN CHARLES WALKER, Ph.D., Professor of Plant Pathology

ALBERT JOYCE RIKER, Ph.D., Associate Professor of Plant Pathology

JOHN WILLIAM BRANN, M.S., Assistant Professor of Horticulture and
Plant Pathology

JOHN JEFFERSON Davis, B.S., M.D., Curator of the Herbarium

CLARICE AUDREY RicHArDs, Ph.D., Lecturer in Forest Products

Courses 104, 149, 220, 221, and 252 are offered in the Department of
Botany, College of Letters and Science.

5. CROP DISEASES AND THEIR ConTROL. I; 2 cr. Lectures and demon-
strations dealing with the occurrence, symptoms, and control of the
more important diseases of the commonly cultivated crops. Lab. fee
$2.25. Mr. Vaughan and staff.

100. THESIS. Yr; 2cr. Investigation of some problem in plant pathology.
Subject should be chosen early, preferably the preceding spring, in
order to take advantage of the summer session to secure material.
Lab. fee $2.25 per lab. cr. Mr. Jones and staff.

101. DISEASES OF PLANTS. I; 3 cr. The nature, causes, and remedies of
the diseases of economic plants, including field and laboratory studies
of a typical series of examples. Prerequisites: Botany 1 and Agr.
Bact. 1. Lab. fee $4.50. Mr. Walker, Mr. Gilbert.

102. METHODS IN PLANT PatHoLocy. I; 8 er. Isolation of parasites,
technique of cultural methods, spore germination, and infection. Pre-
requisite: Plant Path. 101. Lab. fee $4.50. Mr. Keitt and staff.

104. MorPHoLoGy oF FuncI. I; 3 cr. Prerequisite: Botany 1. Lab.
fee $3.50. Mr. Gilbert.

116. DISEASES oF FIELD Crops. II; 2 er. Arranged to meet the needs of
students in plant pathology and agronomy. Prerequisite: Plant
Path. 101. Offered 1929-30 and in alternate years. Lab. fee $2.25.
Mr. Dickson.