The Harvard photoelectric microdensitometer
By: by George Z. Dimitroff and Donald H. Menzel
Contributors: Menzel, Donald Howard, 1901-; Shapley, Harlow, 1885-1972; Menzel, Donald H. (Donald Howard), 1901-1976
Series: Annals of the Astronomical Observatory of Harvard College -- v. 105, no. 6
Publisher: The Observatory
Published: 1937
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 105
Subjects: Microphotometer; Microdensitometry
Other titles: Tercentenary papers
Notes: Caption title.

"Harlow Shapley, director"--Vol. t.p.

Includes bibliographical references (p. 105).