documents selected.
- 40706411370
Subject(s): Heyroth , Francis Farnham , 1894– Reference Note: See Ellis, C., & Wells, A. A. The chemical action of ultraviolet rays. 961 p. 23 ½cm. N. Y., 1941. Language: English Type of Resource: Note Series/Volume/Page: Series 4/Volume 7/Page 641