Physics 62. Thermodynamic Potential. Mon., Fri., at 2.30, and a third hour at the pleasure of the instructor. Asst. Professor Hall. (V.) Course 62 is open to students who have taken Course 61, or who otherwise satisfy the instructor of their fitness.

Botany 1. Botany. - Lectures (Tu., Th., at 10, and a third hour at the pleasure of the instructor) and laboratory practice. Professor Goodale. (VIII.) This course is required as an introduction to Courses 3 and 4. It is intended for beginners and for those who wish to get a comprehensive view of the subject. It is open to freshmen.

*Botany 4. Cryptogamic Botany. - Lectures and laboratory work. Tu., Th., Sat., at 11. Professor Farlow and Asst. Professor Thaxter. (IX.) Course 4 is open to those only who have taken Courses 1 and 2.

*Zoology 5. Embryology of Vertebrates. - Lectures and laboratory work. Mon., Wed., Fri. Professor Mark. Course 5 is open to those only who have taken Course 4.

Geology 1. Meteorology. - Lectures, recitations, written exercises, and laboratory work. Mon., Wed., Fri., at 10, a laboratory conference of one hour on Tu. between 9 and 12, and additional laboratory hours. Professor Davis and Mr. Ward. (II.)

*Geology 6. Physical Geography of the United States. - Lectures, library work, and reports. Mon., Wed., Fri., at 12. Professor Davis. (IV.)

Physiology 1. The Elementary Physiology and Hygiene of Common Life. - Personal Hygiene. - Emergencies. Tu., Th., at 10, and a laboratory hour. Dr. G. W. Fitz. (VIII.) This course can be counted towards the degree of S. B., but not towards the degree of A. B.