Astronomical Lectures to be Given

A series of "Open Nights", under the auspices of the Bond Astronomical Club, will be held at the Harvard Club Observatory on April 20, 25 and 29. Short non-technical talks will be followed, when the weather permits, by telescopic observation of celestial objects. Exhibits showing the work of the Observatory will be explained by members of the Club.

Tickets for these open nights must be obtained in advance by sending a self-addressed, stamped envelope, stating for which night the tickets are desired, to "Open Nights". 9 Vincent Street, Cambridge; or telephone Porter 0901 W daily, between 2 and 5 o'clock.