Table of Contents

Letters

Books
The Limits of the Earth by Fairfield Osborn

Features:

Some Valuable, Mistaken Notions on Matter in Motion
by Thomas M. Smith

Geochemistry at Caltech
The Division of Geological Sciences moves into another new field of research, in its program to integrate the efforts of geologists, physicists, chemists, and biologists.
by Samuel Epstein

Pictures from Palomar
Recent photographs made with the 200-inch Hale telescope

Campus News:

The Month at Caltech

Faculty Waiters

Alumni Seminar, 1954

Biochemistry
A Report on Research in Progress
by Henry Borsook

Personals