Table of Contents

Letters

Recent Books

Features:

A New Type of Railroad Car
by F. C. Lindvall, PhD '28
Associate Professor of Electrical Engineering

Many Tech Men Employed by Southern California Gas Co.

Campus News:

Institute Staff Members Recognized in American Men of Science

The Month at Caltech

Seminar Weekend
Further Reports on March Proceedings

Alumni You Should Know

News of Classes
1898-1938