Open to the public.

Harvard Union. Debate. 7.30 p. m., Sever 11. No principal disputants. Subject to be announced at the meeting.

PUBLIC LECTURES ADDRESSED TO TEACHERS.Professor Goodale, began on March 18, and will continue on successive Fridays at 4.30 p. m., in the N. C. Nash Botanical lecture room University Museum, a course on the teaching of Botany. The complete programme is as follows:

1. General Introduction. - The place of Science; of Natural History; of Botany. The scope of Botany. Divisions of the Science of Botany. - Material at the disposal of the city and of the country teacher. - General aim; to compel the pupil to see through his own eyes.

2. Illustrations of the method drawn from the phenomena presented by winter vegetation.

3. Illustrations afforded by spring.

4. Illustrations drawn from leaves and flowers.

5. Illustrations afforded by fruits and seeds.

6. Germination. Adaptations to different climatic conditions.

In addition to the foregoing the following courses are now announced:

Professor Emerton will give four lectures on the Study and Teaching of History at 4 p. m. on Mondays, beginning March 21. The lectures will be given in Harvard 1. The special topics of the lectures are as follows:

1. March 21. - Definition and Purpose of Historical Study.

2. March 28. - The modern Historical Method; its History and its Application.

3. April 4. - Historical Sources and their use in Teaching.