Engineering Society. Bridge Erection (illustrated by the lantern). Mr. H. W. Hodge, of New York City. Jefferson Physical Laboratory, 7.45 p.m.
Open to the public.
Harvard Natural History Society. The Reptiles and Batrachians (illustrated by lantern slides). Mr. Garman. Geological Lecture Hall, University Museum, 8 p.m.
Open to all members of the University and their friends.