The Abbot silver-disk pyrheliometer.
Series: Smithsonian miscellaneous collections,; v. 111, no. 14; Smithsonian miscellaneous collections ;; v. 111, no. 14.
Publisher: Smithsonian Institution
Published: 1949
Place of publication: Washington
Language: eng
Number of pages: 11
Subjects: Pyrheliometer.
Notes: Publication 3991.
At head of title:  Hodgkins Fund.