University Calendar.

Appleton Chapel, 7.30 p. m. Rev. Minot J. Savage of Boston.

(The front pews will be reserved for members of the University until 7.30.)

Weekday morning prayers at 8.45 a. m. No seats are assigned, either for officers or classes.

Rev. Lyman Abbott, D. D., will conduct prayers from Feb. 10-19.

Mr. Abbott may be found at Wadsworth House 1 every week day from 9 to 12 a. m.

FEBRUARY 9. MONDAY.First day of the second half-year.

President and Fellows of Harvard College. Special meeting at No. 50 State St., Boston, 11 a. m.

Visible Speech Elucidated. Lecture. Mr. Alexander Melville Bell. Sever 11, 7.30 p. m.

Open to the public.

Philosophical Conference. Meeting at Stoughton 7, 7.45 p. m.

11. WEDNESDAY.Divinity School Chapel. Conference. 4.15 p. m.

The Psychology of Music. Lecture. V. Tonality. Mr. B. I. Gilman. Sever 11, 7.30 p. m.

Open to the public.

Physical Science. (Course for Freshmen.) Electro-Magnetism. Professor Trowbridge. Jefferson Physical Laboratory.

Open to the public.

12. THURSDAY.Vesper Service. Appleton Chapel, 5 p. m.

Vesper Services will be held on Thursdays of each week in term-time until further notice. Each service begins promptly at 5 p. m. The public are invited to these services.

Cambridge Indian Rights Association and Mass. Indian Association. The Indian Question in South Dakota. Address. Rt. Rev. Wm. H. Hare, D. D. Sanders Theatre, 7.45 p. m.

13. FRIDAY.Divinity School Chapel. Preaching Service. 7.30 p. m.

APPLETON CHAPEL.- SUNDAY EVENING SERVICES.February 8.- Rev. Minot J. Savage of Boston.

February 15.- Rev. Lyman Abbott, D. D.

February 22 and March 1.- Rev. Professor Wm. lawrence, S. T. D.

LECTURE ON VISIBLE SPEECH ELUCIDATED.On Monday, February 9, Mr. Alexander Melville Bell, of Washington, D. C., will deliver a lecture upon Visible Speech Elucidated. The lecture will be given in Sever 11, and will be open to the public.

THE PSYCHOLOGY OF MUSIC.The topics and dates of the remaining lectures on the Psychology of Music are as follows:

Feb. 11.- V. Tonality.

Feb. 18.- VI. Measure.

Feb. 25.- VII. Harmony.

March 4.- VIII. Expression.

THE COLLEGE CONFERENCES.On the study of the Bible are omitted between Christmas and the Mid-Year Examinations.

The next Conference will be conducted by Professor Toy, on February 17th. Subject: "The Development of Hebrew Religion."

FRESHMAN LECTURES.A course of lectures on Physical Science will be given in the Jefferson Physical Laboratory, beginning February 11. These lectures are intended especially for freshmen, but are also open to other members of the University and to the public.

1. Electro Magnetism. Wednesday, February 11, 8 p. m. Professor Trowbridge.

2. Elementary Facts about Frictional Electricity. Friday, February 13, 12 m. Professor B. O. Peirce.

3. New Developments in Electricity. Wednesday, February 18, 8 p. m. Professor Trowbridge.

4. Disruptive Discharges of Electricity. Friday, February 20, 12 m. Professor B. O. Peirce.

5. Acoustics, writhe especial reference to the Electrical Transmission of Speech. Wednesday, February 25, 8 p. m. Professor Trowbridge.

6. Lightning and Lightning Rods. Friday, February 27, 12 m. Professor B. O. Peirce.

7. Physical Optics, with especial reference to Photography. Wednesday, March 4, 12 m. Professor B. O. Peirce.

8. The Characteristics of Steady Currents of Electricity. Friday, March 6. 12 m. Professor B. O. Pierce.

9. Prime Motors and their Sources of Energy. Wednesday, March 11, 8 p. m. Professor E. H. Hall.

10. The Steam Engine. Wednesday, March 18, 8 p. m. Professor E. H. Hall.

11. Dynamo Electric Machinery. Wednesday, March 25, 8 p. m. Professor E. H. Hall.

12. Electric Lighting and Electric Railways. Wednesday, April 8, 8 p. m. Professor E. H. Hall.

OPTICAL CRYSTALLOGRAPHY.Professor Cooke will begin his Course on Optical Crystallography on Tuesday, February 10 at 10 a. m.; to be continued on Tuesdays and Thursdays of each week at the same hour. The lectures will be given at his house, No. 12 Ware Street, and are open to all members of the University desiring to study this subject. They will assume an elementary knowledge of descriptive crystallography and of optics only.