Table of Contents

In this Issue

Letters

Exploring the Atom
High energy particle accelerators—their function and purpose
by Robert V. Langmuir

Science in Art: Caricatures of men of science
by Earnest C. Watson

The Age of the Universe
Three branches of science tackle the problem
by Jesse L. Greenstein

The Month at Caltech

Beaver's Month
by Jim Hendrickson

Books: The Philosophy of Materialism

Alumni News

Twenty-five Years Out
The class of '24 holds its 25th reunion
by Robert S. Ridgway

The President's Report to the Alumni Association
A review of the year
by Howard B. Lewis

Personals