OBSERVATORY SLATES TALKS

Opening its facilities to the students of the University and the public, the Observatory will give free lectures and observations through the University telescopes, at 7:30 o'clock on the evenings of October 27 and 30, and November 1 and 3.

Free tickets must be secured in advance by sending a self-addressed stamped envelope to Open Nights, Harvard Observatory, Garden street, Cambridge. Each applicant may obtain seats at only one of the programs.

The Open Nights lecture program follows: Friday, Oct. 27, "How Astronomers Observe," by Dr. George Z. Dimitroff; Monday, Oct. 30, "Spectacular Stars," Dr. Dorrit Hoflleit; Wednesday, Nov. 1, "Meteorites, Cosmic Calling Cards," Dr. Fletcher Watson; and Friday, Nov. 3, "Powerhouses in Space, Dr. Cecilia Payne-Gaposchkin.