Several opportunities will be offered, if weather conditions permit, for members of the University to use the equipment of the Harvard College Observatory and the Astronomical Laboratory for observing Jupiter and Saturn. Tonight and Friday night from 8 until 10 o'clock, the Astronomical Laboratory on Jarvis Street will be open to members of the University and their friends.

Between 7.30 and 9 o'clock tonight the public has been invited to study the planet Saturn, before a lecture by Dr. W. J. Luten on "The Nearest Stars", at the Harvard College Observatory on Concord Avenue, opposite Huntington Street.