Lectures and discussions. Credit 1 unit or 2 units, as may be determined by the instructor in charge.

Tu Th, 3. 210 Chemistry Building.

4M. The Teaching of Chemistry in Secondary Schools.

Assistant Professor MORGAN. Conferences with actual or prospective teachers; discussions of the purpose and aim of science teaching in general and of the subject of chemistry in particular; of the relative value to the student of laboratory work as compared with experimental lectures, of qualitative and quantitative experiments; of the extent to which industrial applications and every-day reactions should be emphasized; of text-books, their uses and abuses; other problems. 2 units.

M Tu W Th F, 8. 210 Chemistry Building.

BOTANY.

WILLIS L. JEPSON, Ph.D. Assistant Professor of Dendrology. LEILA D. HIBBARD, Assistant in Botany in the Summer Session.

1м. The Native Flowering Plants of California.

Assistant Professor JEPSON. Training in systematic botany and practical work in the determination and recognition of native plant families. Living specimens sufficient for distribution to the whole class will be used. The primary object is to enable teachers to make use of the native plants for botanical instruction, and to train travelers to an intelligent appreciation of the native vegetation. The following excursions will be made to special vegetation areas: (1) The Redwood Peak region, where contrasting floras of the Redwood Belt and the Fire-type formation lie closely together, an area of great geographic and biological significance; (2) the Chaparral formation of Mt. Tamalpais, with its interesting xerophyte shrubs and associated herbaceous plants; (3) the Cañons of the Berkeley Hills, with their rosaceous and other shrubs, compositae and other dry season flowering herbs. The student will learn how to record field observations accurately and to preserve plants for permanent study and reference. The University Herbarium will be visited and its equipment and arrangement explained. Visits will also be made to the botanical garden of the University. 2 units.

M Tu W Th F, 8. 2 Botany Building.

2M. The Trees of California.

Assistant Professor JEPSON. Lectures on the native trees of California, from the standpoint of systematic botany, accompanied by practical exercises in the determination of species by means of a manual. The structure, life-history, and classification of trees in general; coniferous trees and broad-leaved trees; the forests of California compared with those of the Eastern States as to composition and distribution; the timber areas of California; the Sierra Nevada forests and their relation to rainfall, temperature, altitude, and other factors; the Redwood Belt and its

topography and climate; the Redwood lumber industry; the life-history of the Big Tree; the biological and economic characteristics of the Yellow Pine and Sugar Pine; the history of the genus Sequoia; the trees of the Colorado and Mojave Deserts; the origin of the forest flora of California. Two of the lectures will be illustrated by lantern slides. There will be an exhibition of cones, acorns and fruits of California trees; also a photographic exhibition of the Redwood industry. Lectures, demonstrations and practical exercises; field work, to be arranged individually. 2 units. The lectures or the practical exercises may be taken separately: 1 unit.

M Tu W, 10. 5 Botany Building. Field work, five hours per week, to be arranged individually.

ZOOLOGY.

VERNON L. KELLOGG, M.S., Professor of Entomology and Lecturer in Bionomics, Leland Stanford Junior University.

*WILLIAM E. RITTER, Ph.D., Professor of Zoology and Director of the San Diego Marine Biological Station.

CHARLES A. KOFOID, Ph.D., Associate Professor of Histology and. Embryology.

JOSEPH GRINNELL, M.A., Director of the California Museum of Vertebrate Zoology.

1. Organic Evolution, its Facts, Principles, and Problems.

Professor KELLOGG. An outline of the basic assumptions and phenomena of evolution; the present-day status of such principles and factors as variation, heredity, selection, isolation, mutation, adaptation, mechanicalism, vitalism, etc. Special attention to those phases of the subject which may be called modern evolution problems, as, variation, order of inheritance, species-forming by mutations, and those questions raised by present-day scientific criticism of the theories of selection. The lectures will be illustrated by charts and specimens. Open to all students. 2 units.

M Tu W Th F, 10. 13 South Hall.

2. The Birds, Mammals, and Reptiles of California.

Mr. GRINNELL.

Our common terrestrial vertebrates; how to identify birds, mammals, and reptiles; their habits and life-histories; beneficial and injurious species; the songs of birds; migration; geographical distribution and variation as exhibited in the fauna of California; preservation of specimens and the care and use of a school museum. Lectures, laboratory work, two hours each day; field trips, each Saturday forenoon. 2 units. M Tu W Th F, 8-10. Research Room, Museum of Vertebrate Zoology.

* At the San Diego Marine Biological Station, La Jolla, California.

3M. Systematic Ornithology. Mr. GRINNELL. Methods of classification, illustrated by the research collection of 12,000 birds; the significance of geographic variation and isolation in the processes of evolution; feather-structure, molt and abrasion; methods of field work; preparation of study skins; recording of field observations; cataloguing of a collection. Lectures, laboratory and field work. 1 unit, or more, according to the time the student can devote to the subject. Open to students who have completed Course 2, and Zoology 1, 2, and 17м in the regular session, or their equivalents. Lectures, Tu Th, 2. Research Room, Museum of Vertebrate Zoology.

4M. Special Study for Undergraduates.

Associate Professor KoFOID.

Selected subjects; conferences and occasional lectures; intended

as an introduction to research.
arranged individually.

M Tu W Th F, 1-4. 26 East Hall.

5G. Special Study for Graduate Students.

Topics, hours, and credit

Associate Professor KoFOID. Research on special topics, with thesis, especially in Protozoology. Topies, hours, and credit arranged individually.

M Tu W Th F, 1-4. 26 East Hall.

THE MARINE BIOLOGICAL SURVEY.

The marine biological work that has been in progress for several years on the coast of Southern California by the Department of Zoology is now permanently established, with broadened scope increased facilities.

and

While, as heretofore, the whole time and effort of the staff of the laboratory will have to be devoted to research, a limited number of students sufficiently advanced to be able to work under the guidance of the investigators to the advantage of both themselves and their directors will be gladly admitted.

Graduate students who are candidates for higher degrees in the University may, with the approval of the Professor of Zoology, count the time spent at work in the laboratory as University resi dence for such degrees.

The work of the station is now carried on throughout the entire year. Applications for admission to the laboratory should be made to the Director, Professor Wm. E. Ritter, La Jolla, California.