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103A-103B. Pro-seminar.

Professor COIT.

Assigned special topics requiring extended research into pomological literature. Reports and discussions. Required of and limited to regular and graduate students electing citriculture as the major subject.

2 hrs., throughout the year; 2 units. M, 3-5.

104. Citrus Investigations.

Special problems. 3 or 6 hrs. 1 or 2 units, either half-year. Hours to be arranged. Prerequisite: senior standing in the College of

Agriculture.

GRADUATE COURSE

201. Laboratory or Field Research.

Professor Coit.

Topics for research in citrus or semi-tropical fruits. Open to graduate students desiring to write theses.

Throughout the year; hours to be arranged.

Prerequisite: courses

101, 102, and 103, or equivalent training. For further particulars,

see Graduate Announcement.

DAIRY INDUSTRY

(Given at Davis)

116. Testing Dairy Products.

Mr. BAIRD and Mr. DOUGLASS. A study of the nature and composition of milk, the various tests used in testing different dairy products, and the practical application of them.

4 hrs., second half-year; 2 units. 1 lecture, 1 laboratory period.

127. Milk and Milk Products.

Assistant Professor DAVIS.

A general course dealing with the properties, care, and handling of milk; principles and applications of the Babcock test; a study of the construction and operation of different makes of separators; principles of and practice in the handling and churning of cream; farm cheese making.

5 hrs., second half-year; 3 units. 2 lectures, 1 laboratory period.

128. Factory Methods. Mr. DOUGLASS. Study of the principles of creamery butter-making; pasteurization, ripening and churning of cream; handling and marketing of but ter; instruction and practice in making cheese.

5 hrs., second half-year; 3 units. 2 lectures, 1 laboratory period. Prerequisite: course 116 or 132; course 116 may be taken concurrently.

129. Ice Cream Making.

Mr. BAIRD. Instruction and practice in making plain and fancy ice cream, ices, and sherbets.

4 hrs., second half-year; 2 units. 1 lecture, 1 laboratory period. Prerequisite: course 116 or 132; course 116 may be taken concurrently. 130. Market Milk. Mr. DOUGLASS. Conditions affecting quality of milk for direct consumption; requisites for producing different grades of milk; tests for quality, adulteration, etc.; pasteurizing, standardizing, and bottling milk for distribution; inspecting dairies and milk plants.

5 hrs., second half-year; 3 units. 2 lectures, 1 laboratory period. Prerequisite: course 116 or 132; course 116 may be taken concurrently. (Given at Berkeley)

132. Dairy Fundamentals. Assistant Professor DAVIS. Study of the secretion, nature, and composition of milk and milk products; various tests used in testing dairy products; care and handling of milk and cream, and regulations covering it; dairy inspection; a survey of the dairy industry and a study of California dairy conditions.

5 hrs., first half-year; 3 units. Lectures, F, 1; S, 8; laboratory, F, 2–5.

ENTOMOLOGY

LOWER DIVISION COURSES

1. General Entomology.

Dr. VAN DYKE.

A general review of the structure, habits, and classification of insects. 2 hrs., either half-year. Tu Th, 10. Course 3, 4 or 5 must be taken concurrently with this course.

2. Economic Entomology.

Associate Professor QUAYLE.

Detailed studies of a series of the most injurious insects.

2 hrs., either half-year. Tu Th, 11. Course 3 or 4 must be taken concurrently with this course.

3. Supplementary Course.

Recitations based on a text.

The STAFF.

1 hr., either half-year. As many sections will be organized as necessary. Each section limited to fifteen students. Hours will be announced at the beginning of the term. No credit except when taken concurrently with another course.

4. Elementary Systematic Entomology.

The structure and classification of insects.

plemented by field work.

Dr. VAN DYKE. Laboratory studies sup

6 hrs. laboratory and 3 hrs. field work; either half-year; 3 units. Tu Th, 1-4.

5. General Entomological Laboratory.

Assistant Professor HERMS and Mr.

Laboratory methods in the preparation of insects and animal parasites for microscopical study; observations of living specimens; rearing and general methods in the study.

6 hrs., either half-year; 2 units. Tu Th, 2-5.

6. Parasites.

Assistant Professor HERMS. Classification, biology, relation to disease, principles of control as applied to the commoner parasites of man and beast. Lectures and recitations.

23. Apiary Work.

3 hrs., first half-year. Tu Th, 10; a section meeting to be arranged. Professor WOODWORTH. The community life of colonies of bees in the apiary, involving the technique of handling bees, including the more common manipulations.

6 hrs., second half-year; 2 units. Tu Th, 1–4.

26. General Apiculture.

Professor WOODWORTH.

Lectures covering in outline the whole field of apiculture, with special emphasis on the natural history of the honey bee.

2 hrs., second half-year. Tu Th. 9. Prerequisite: junior standing for students in the colleges of general culture.

27. Ecology.

Assistant Professor HERMS.

A discussion of the relation of animals to their environment, including a discussion of such topics as hunger and food, behavior, growth, adaptation and variation, social habits, insects and plants, aquatic habits, etc.

3 hrs., second half-year. M W F, 10.

INTERDIVISION COURSE

99. Practice in Entomology.

Dr. VAN DYKE, assisted by other members of the staff. Field study of forest insects; practice in making reports on field investigations, records in breeding-cage work, description of insects, and the collecting and mounting of specimens. The date and location of the camp will be announced later.

6 units.

UPPER DIVISION COURSES

Professor WOODWORTH.

100. Entomological Teaching.

A discussion of the objects and methods in entomological teaching with actual teaching practice.

7 hrs., first half-year; 3 units. Lectures, W, 4; laboratory hours to be arranged.

101. Insect Problems.

Professor WOODWORTH.

Illustrated lectures on the current literature of entomology, with a critical discussion of the methods of study and of entomological theories. Open to the public.

2 hrs., either half-year; 2 units. Tu, 7-9 p.m.

Supplementary course. Credit allowed only when taken in conjunction with another course in entomology.

103. Special Problems.

Professor WOODWORTH and Dr. VAN DYKE. Individual instruction in special problems in entomology. 6-12 hrs., either half-year; 2-4 units. M Tu W Th F, 1-4.

112A-112B. Advanced Systematic Entomology.

Advanced study of the classification of insects.

Dr. VAN DYKE.

9 hrs., either half-year; 3 units. M W F, 1-4. Prerequisite: course 4.

113. Homopterous Insects.

Mr. COLEMAN.

A general study of the aphids, white flies, scale insects, and other homoptera, including methods of collecting, preserving, and study of their life history.

7 hrs., either half-year; 3 units.

2-5.

114. Forest Insects.

Lecture, Th, 1; laboratory, Tu Th,

Dr. VAN DYKE.

The study of insects in their relationship to forests and woodlands. 2 hrs. lecture, and 3 hrs. held work, either half-year. Tu Th, 4. Prerequisite: course 1 or 4.

115. Homopterous Insects and their Parasites.

Mr. COLEMAN.

An advanced study of the classification of the aphids, white flies, scale insects, and other homoptera, their life histories, and parasites.

The student will be given individual instruction in the selection and working out of a problem as a thesis for graduation, and of orig inal articles for publication.

3 or more units, either half-year. Hours to be arranged. Prerequisite: course 113.

116. Veterinary Parasitology.

Assistant Professor HERMS and Dr. VAN DYKE. The relation of animal parasites and disease carriers to domesticated animals, with special emphasis placed on control. Especially designed for students in veterinary science and animal industry. This course satisfies in full the requirements in parasitology in Class A veterinary colleges.

8 hrs., first half year; 4 units. Lectures, M F, 10; laboratories, 6 hrs., M W, 1-4.

118. Insecticides and Fungicides.

Mr. GRAY.

A discussion of the chemistry and composition of remedies used for the control of parasites that infest vegetation and animals, including the source of raw materials, commercial, and home manufactures.

Lectures and demonstrations. Either course 119 or another course in entomology must be taken concurrently with this course.

2 units, first ha.f-year. Tu Th, 1.

119. Insecticide and Fungicide Analysis.

Mr. GRAY.

Given only in con

Laboratory practice in the microscopical and chemical methods of examination of insecticides and fungicides. junction with or following course 118.

3 hrs., either half-year; 1 unit. Two sections: Tu Th, 2-5. Prerequisite: Agricultural Chemistry 101A-101B.

120. Inspection Laws.

Professor WOODWORTH and Mr. GRAY.

A study of the laws and decisions relative to horticultural quarantine, inspection and insecticide control work; tne organization of insecticide control work; inspection; official methods of analysis, and a review of the commercial insecticides.

3 hrs., second half-year. Tu Th S, 8.

121A-121B. Life History Work.

Dr. VAN DYKE.

Method and practice in working out the life histories of insects in insectary and field.

6-9 hrs., either half-year; 2-3 units. Tu W Th, 1-4. Prerequisite: course 1, 2 or 4.

122. Citrus Fruit Insects.

Mr. COLEMAN.

A study of the scales and other insects affecting trees; methods of control.

7 hrs., first half-year; 3 units. Lectures, Tu, 1; laboratory, Tu Th. 2-5. Prerequisite: course 1.

123. Investigation of a Problem in Apiculture.

Mr. NICKELS.

University Farm. 3 units, either half-year. Hours to be arranged.

126. Medical Parasitology.

Assistant Professor HERMS.

The role of animal parasites in the transmission and causation of human diseases. Special emphasis is placed on habits and control. For students in public health, medicine, sanitary science, and domestic science.

3 hrs., second half-year. Tu Th, 10; W, 4. Prerequisite: Zoology 1 and Pathology 1 (Bacteriology).

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