Box 1
Contains 57 Results:
Letter from H. P. Gage; Letter from R. D. Mailey, June 4, 1923; June 18, 1923
Corning Glass Works; Cooper Hewitt Electric Co.
Letter to G. C. Hall from A. B. McKenna; E. E. Dorting, June 3, 1931
The materials in this series were originally housed in a letter file labeled “Ultraviolet.” The documents include correspondence and literature on methods for measuring and recording ultraviolet wave lengths. Some of this material is trade literature.
Letter from M. J. Dorcas, May 9, 1929
The materials in this series were originally housed in a letter file labeled “Ultraviolet.” The documents include correspondence and literature on methods for measuring and recording ultraviolet wave lengths. Some of this material is trade literature.
Glass Color Filters, undated
Corning Glass Works
The G-M Photoelectric Cell, undated
The Gaertner Scientific Corp.
The Burt Ultra-Violet Photometer, undated
The materials in this series were originally housed in a letter file labeled “Ultraviolet.” The documents include correspondence and literature on methods for measuring and recording ultraviolet wave lengths. Some of this material is trade literature.
Wratten Light Filters, undated
Eastman Kodak Company