On the conditions of maximum efficiency in astrophotographic work
By: F.L.O. Wadsworth
Publisher: University of Chicago Press
Published: 1897
Place of publication: Chicago
Language: eng
Number of pages: 135
Subjects: Astronomical photography
Other titles: Astrophysical journal.
Notes: Title from cover.

"Reprinted from the Astrophysical journal, vol. VI, no. 2, August 1897."

Includes bibliographical references.