1A-1B. General Physics.

Associate Professor MINOR and Dr. ELSTON.
Lectures, recitations, and

Mechanics, properties of matter, and heat. laboratory exercises, each once a week.

5 hrs., throughout the year; 3 units each half-year. Lectures and recitations: section A, Tu Th, 1; section B, M F, 1. Laboratory sections: I, M, 2-4; II, Tu, 10-12; III, W, 2-4; IV, Th, 10-12; V, F, 2-4; VI, S, 10-12. The fifth hour will be used for supplementary laboratory work or for conferences. Prerequisite: matriculation physics, subject 11 (but see 2A-2B, below). Prescribed in the Colleges of Engineering.

2c-2D. General Physics.

Associate Professors MINOR and HALL and Mr. ABBOTT. Sound, light, energy transformations, electricity, and magnetism presented as a continuation of course 1A-1B. Lectures, recitations,

and laboratory exercises, each once a week.

5 hrs., throughout the year; 3 units each half-year. Lectures and recitations, M W F, 10; six laboratory sections, M W F, 1-4; Tu Th S, 9-12. Prescribed in the Colleges of Engineering.

2A-2B. General Physics.

Professor LEWIS and Associate Professor MINOR. Lectures with experimental illustration, recitations, and problems. Mechanics, properties of matter, heat, sound, light, energy transformations, electricity, and magnetism. Prerequisite: matriculation physics, subject 11.

5 hrs., throughout the year; 4 units each half-year. Lectures, Tu Th S, 11. Recitations: section I, Tu Th, 9; section II, W F, 9.

The lectures may be taken separately with a credit of 2 units each half-year. These lectures (but not the accompanying recitations, nor the laboratory courses 3A-3B), may be taken without the prerequisite in matriculation physics. The completion of this part of courses 2A-2B admits students of the Colleges of Engineering to course la; other students, either to course 1A, or to the remainder of the work in courses 2A-2B, and 3A-3B.

3A-3B. Physical Measurement. Associate Professor MINOR. Experimental work in mechanics, properties of matter, heat, sound, light, electricity and magnetism, requiring quantitative results. Methods are selected so as to show instructive relations of physical principles, and their adaptation to practical problems. Laboratory exercises twice a week. These courses are usually taken in conjunetion with 2A-2B. Prerequisite: matriculation physics, subject 11. 6 hrs., throughout the year; 2 units each half-year. Tu Th, 1·4.

UPPER DIVISION COURSES.

105A-105B; 105c. Analytic Mechanics.

Professor SLATE, Associate Professor RAYMOND, and Dr. ELSTON. 105A-105B. The mathematical treatment of principles of dynamics and statics that are fundamental, illustrated by problems and applica

3 hrs., throughout the year. Three sections: I and II, M W F, 8;
MW F, 10. Prerequisite: Mathematics 9 and 109 or 3-4.
105c. Mechanics for students of Physics.

III,

3 hrs., second half-year; an alternative continuation of course 105a. Prerequisite: Mathematics 9 and 109 or 3-4; Physics 2A-2B.

107A-107B. Electrical Measurements.

Associate Professor RAYMOND.

Elements of the mathematical theory of electricity and magnetism, with applications of the principles to the measurement of magnetic field, direct and alternating electric current, electro-motive force, resistance, power, capacity and inductance. Calibration and use of important types of measuring instruments.

the more

107A. Two lectures and one laboratory exercise a week.

5 hrs., first half-year; 3 units. Lectures, Tu Th, 10; laboratory, section I, Tu, 1-4; II, W, 1-4. Prerequisite: course 2C-2D; Mathematics 9

and 109 or 3-4.

107B. One lecture and two laboratory exercises a week.

7 hrs., second half-year; 3 units. Lecture, W, 10. Laboratory, section I, M F, 1-4; II, Tu Th, 1-4. Prerequisite: courses 105A and 107A.

*108. Physical Opties.

Associate Professor HALL.

Lectures, with experimental illustrations and recitations, on selected topies in light, relating to the theory of optical instruments.

2 hrs.. first half-year.

Mathematics 9.

Tu Th, 11. Prerequisite: course 2A-2B and

Professor LEWIS.

108A. Polarized Light. Laboratory work, with occasional lectures. Methods of producing and detecting plane, circularly, and elliptically polarized light. Practical applications in crystallography, saccharimetry, and metallic reflection. Optical activity.

6 hrs., second half-year. Prerequisite: courses 1A-1B, 2A-2B, and 3A-3B, or their equivalent.

109A. Molecular Physics.

Associate Professor HALL.

A descriptive study of the gaseous, liquid, and solid states of matter. Lectures with reading and discussion.

2 hrs., second half-year. Tu Th, 11. Prerequisite: courses 1A-1B and 2A-2B and Mathematics 9 and 109 or 3-4.

*110A. Electricity.

Associate Professor HALL.

Elements of the theory of magnetism and electricity, with laboratory

exercises in electrical measurements.

8 hrs., first half-year; 4 units. Lectures, Tu Th, 11. Laboratory, Tu Th, 1-4. Prerequisite: course 2A-2B and Mathematics 9 and 109 or

3-4.

*Not to be given, 1911-12.

111A-111B. Electric Discharges through Gases.

Professor LEWIS. 111A. Lectures, experimentally illustrated, on phenomena of the flame and electric arc, spark, and vacuum-tube; and on cathode rays, Röntgen rays, and radio-activity.

2 hrs., first half-year. Tu Th, 9. Prerequisite: course 2A-2B. This course is recommended as preliminary to course 211-211c.

111B. Laboratory work for students who wish to supplement course 111A by the individual study of practical problems.

3 or 6 hrs., first half-year.

*112A. Energetics.

Professor SLATE.

A non-mathematical account of forms and transformations of energy. Lectures; open to qualified students.

2 hrs., second half-year.

112B. Heat Measurements.

Associate Professor HALL.

Selected problems in thermometry, calorimetry, pyrometry, intensity of radiation, and general heat measurements, adapted for students in physics, chemistry, and engineering. Laboratory work with readings and discussions.

2 units, second half-year.

113. Physical Optics.

Associate Professor HALL.

Laboratory exercises connected with course 108, and in extension of it. 6 hrs., second half-year; 2 units. Tu Th, 1-4.

114. Advanced Physical Measurement.

Associate Professor RAYMOND.

Problems involving accurate measurement and mathematical work. Laboratory exercises twice a week.

6 hrs., first half-year; 3 units. Tu Th, 1-4.

118. Special Undergraduate Study.

THE STAFF.

All special laboratory work not included in courses announced above. Credit value to be fixed in each case. By special arrangement, this course may be made the equivalent of parts of the regular laboratory work under courses 1A-1в and 3A-3B.

206A. Harmonic Motion.

GRADUATE COURSES.

Associate Professor RAYMOND. The analytical treatment of vibratory and wave motion, with application to sound, light, and electricity. Lectures with experimental illustrations.

2 hrs., first half-year. Tu Th, 8. Prerequisite: courses 105A, and 105в or 105c, and course 2A-2B.

*Not to be given, 1911-12.

May be chosen as upper division and major work by special arrangement only.

206B. Electric Waves and Oscillations.

Associate Professor RAYMOND. Lectures, with experimental illustrations.

2 hrs., second half-year. Prerequisite: course 206A.

211-211c. Spectroscopy.

Professor LEWIS.

211. Lectures, with experimental illustrations, on methods and results of investigation, and spectroscopic theories.

2 hrs., second half-year. Tu Th, 9. Prerequisite: course 108. Course 111A will also be found helpful.

211c. Laboratory work for students who wish to familiarize themselves with the use of spectroscopic apparatus, or to supplement course 211 by the individual study of practical problems.

3 or 6 hrs., second half-year.

*215A. Precession and Nutation.

Professor SLATE.

3 hrs., first half-year, M W F, 10, in alternate years with course 215. Prerequisite: courses 105A, 105в or 105c and 215.

216. Special Advanced Study and Research.

THE STAFF.

Laboratory work throughout the year, on problems assigned according to the preparation and needs of individual students. Credit value to be fixed in each case.

217. Readings and Discussions.

Professor SLATE.

Work for graduates upon topics selected in consultation. For 1910-11 the special subject was: The vector equations of the electromag

netic field.

2 hrs., throughout the year.

220. Seminar Course.

Associate Professor HALL.

Designed for prospective teachers of physics. In part a library course, having the general purpose of gaining some familiarity with sources of information, and with methods of finding the literature on a given topic.

2 hrs., second half-year. S, 10-12.

*Not to be given, 1911-12.

ASTRONOMY.

ARMIN O. LEUSCHNER, Ph.D., Sc.D., Professor of Astronomy, and Director of the Students' Observatory.

*RUSSELL T. CRAWFORD, Ph.D., Associate Professor of Practical tronomy.

As

ALEXANDER MCADIE, M.A., Honorary Lecturer on Meteorology.
DANIEL W. MOREHOUSE, M.S., Instructor in Astronomy.

STURLA EINARSSON, A.B., Instructor in Practical Astronomy.
WILLIAM F. MEYER, B.S., Instructor in Astronomy.

ANNA ESTELLE GLANCY, A.B., Watson Assistant in Astronomy.
SOPHIA H. LEVY, B.S., Watson Assistant in Astronomy.

Special Announcement. A special announcement concerning the facili ties and the courses of instruction in the Berkeley Astronomical Department, and in the Lick Astronomical Department, at Mount Hamilton, has been published. Copies may be obtained from the Director of the Lick Observatory, Mount Hamilton, California, or from the Director of the Students' Observatory, Berkeley, California.

Courses 1, 2, and 5 are designed especially to fulfill the requirement in prescribed natural science for students in the colleges of general culture.

A part of courses 1 and 101 consists of special lectures at the regular hour by the Director and Astronomers of the Lick Observatory.

Geodesy, navigation, and nautical astronomy, especially adapted to the needs of students in the College of Commerce, will be included in course 2A.

LOWER DIVISION COURSES.

1. Elements of Astronomy.

Professor LEUSCHNER.

An introductory course. General facts and principles underlying the science of astronomy in all its branches.

2 hrs., either half-year. Tu Th, 11. Prerequisite to Geography 9. Beginning 1912-1913 this course will be given as a 3-hr. course.

2. Practice in Observing.

Mr. MOREHOUSE and Mr. MEYER.

This course is supplementary to courses 1 or 101 or 103A-103B, and is open to students who are taking or have taken any one of these courses. The student may enroll for from 1 to 4 units by electing one or more of the divisions specified below.

* Absent on leave, 1911-12.