DAIRY HUSBANDRY 333

102. Datry Practice. Yr; 1-4 cr. One credit for each 48 hours of work.
Lab. fee $2.25 per lab. cr. Mr. Jackson.

121. ADVANCED DAIRY MANUFACTURING PROBLEMS. Yr; 1-3 cr. Problems
relating to dairy manufacturing. Lab. fee $2.25 per lab. er. Staff.

123. SEMINARY. Yr; 1 cr. For advanced and graduate students. Mr.
Sommer and staff.

124, PHYSICAL CHEMISTRY OF DAIRY PRopucTs. II; 3 er. Physical chem-
istry of dairy products, laboratory exercises on hydrogen ion concen-
tration, oxidation-reduction potentials, surface tension, absorption,
viscosity and plasticity, isoelectric point of proteins, colloidal proper-
ties of milk constituents. Offered 1929-30 and in alternate years.
Lab. fee $4.50. Mr. Sommer.

200. RESEARCH. Yr; *cr. Experimental study of problems in dairy man-
ufacturing. Lab. fee $2.25 per lab. cr. Staff.

ECONOMIC ENTOMOLOGY

HARLEY FRosT WILSON, M.S., Professor of Economic Entomology, Chairman

CHARLES LEWIS FLUKE, JR., Ph.D., Assistant Professor of Economic Ento-
mology

ALEXANDER ANASTACIEVITCH GRANOVSKY, M.S., Assistant Professor of Eco-
nomic Entomology

GEORGE EUGENE MARVIN, M.S., Instructor in Economie Entomology

CLEMENT HALL GRIFFITH, B.S., Instructor in Economic Entomology

Students majoring in economic entomology and desiring to be trained
in entomological or beekeeping research for the positions offered by the
state agricultural experiment stations and the government service, should
follow Curriculum B. Those preparing for entomological chemical work,
especially with insecticides, should elect more work in chemistry and physics.
Students pursuing specialized lines, such as biological control of insects,
insect physiology, and insects in relation to plant diseases, should elect more
work in plant pathology, botany, and physiology.

Those interested in the opportunities in the field of entomology and
beekeeping should write to the Department of Economic Entomology for
a special circular of information.

1. Farm Insects. II; 3 cr. A study of the insect groups, especially
those in relation to the farm and home. Each student makes a col-
lection of at least one hundred specimens, which he classifies. Op-
tional subject for all agricultural students. Lab. fee $4.50. Mr.
Fluke.

2, ELEMENTARY ECONOMIC ENTOMOLOGY. I; 3 cr. The fundamental
principles of entomology are stressed, giving the student a foundation
in the subject which prepares him for advanced studies of insects.
Lab. fee $4.50. Mr. Fluke.

10, ELEMENTARY BEEKEEPING. I; 2 cr. Elementary principles of bee-
keeping with lectures and practical laboratory work. A general
survey of the subject is taken up, with the fall and winter care in
the apiary being stressed. Lab. fee $2.25. Mr. Marvin.