On certain improved photometric apparatus and the results therewith obtained ...
Published: 1901
Place of publication: Ithaca, N.Y
Language: eng
Number of pages: 118
Subjects: Photometry.
Table of contents: title: I. A device for recording photometer settings.; title: II. The double mirror method and its application to the study of commercial forms of the inclosed arc-lamp.; title: III. An improved apparatus for arc light photometry.; title: IV. The life and efficiency of commercial-brands of carbon for inclosed-arcs.