1939

• Zahn, O. Franklin — A Look at the Diesel Situation (1939)
• Lindvall, Frederick C. — A New Type of Railroad Car (1939)
• Schroter, G. Austin — Adsorbent Clays (1939)
• Staff — Alumni Activities (1939)
• Shield, John E.; Langsner, George; Mohr, William H. — Alumni News (1939)
• Staff — Alumni You Should Know (1939)
• Staff — Alumni You Should Know (1939)
• Staff — Alumni You Should Know (1939)
• Staff — Alumni You Should Know (1939)
• Staff — Campus News (1939)
• Staff — Editorial Comment (1939)
• Engineering and Science, Volume 2:3, March 1939 (1939)
• Engineering and Science, Volume 2:4, June 1939 (1939)
• Engineering and Science, Volume 3:1, September 1939 (1939)
• Engineering and Science, Volume 3:2, December 1939 (1939)
• Peterson, Raymond A. — Geophysical Prospecting for Oil (1939)
• Staff — Institute Staff Members Recognized in American Men of Science (1939)
• Staff — Institute Staff Members Recognized in American Men of Science (1939)
• Copeland, L. B.; Fredendall, Beverly F.; Gordon, Adrian H. — Letters (1939)
• Thomas, Charles F.; McRae, R. A.; Stirton, Robert I. — Letters (1939)
• Wong, David — Letters (1939)
• Staff — Many Tech Men Employed by Southern California Gas Co. (1939)
• Staff — News of Classes (1939)
• Staff — News of Classes (1939)
• Staff — News of Classes (1939)
• Brossy, F. A. — Opportunities for Alumni in Naval Aviation (1939)
• Clark, Donald S. — Partial Results of the 1937 Alumni Survey (1939)
• Staff — Recent Books (1939)
• Carrey, Robert V.; Canterbury, Harry H.; Aultman, William W. — Seminar Weekend (1939)
• Staff — Seminar Weekend (1939)
• Huse, William — The Grapes of Wrath & Factories in the Field (1939)
• Staff — The Month at Caltech (1939)
• Staff; Atwood, Jr., Albert W. — The Month at Caltech (1939)