Abstract

A technique for preparing durable Schumann plates is described enabling them to be prepared with comparative ease. A new method of supersensitizing, and various technical points relating to their handling are summarized.

© 1932 Optical Society of America

An Interferometer Method of Studying the Vibrations of an Oscillating Quartz Plate

Harold Osterberg
J. Opt. Soc. Am. 22(1) 19-35 (1932)

The Sensitization of Ordinary Photographic Plates to Wave Lengths below 2500A

A. J. Allen and R. G. Franklin
J. Opt. Soc. Am. 22(9) 469-476 (1932)

Photographic Plates for Use in Spectroscopy and Astronomy II*

C. E. Kenneth Mees
J. Opt. Soc. Am. 22(4) 204-206 (1932)

The Aborption and Dispersion of Celluloid between 300A and 1000A

H. M. O’Bryan
J. Opt. Soc. Am. 22(12) 739-748 (1932)

Aerial Stereo-Photographic Mapping Instruments and Methods*

C. H. Birdseye
J. Opt. Soc. Am. 22(3) 137-160 (1932)