Supplement to special report of 17 March 1950, entitled " A study of sky clarity and seeing conditions at night on Sacramento Peak"
By: by Bruno Witte ; with the assistance of Rudolph H. Cook ... [et al.].
Contributors: Cook, Rudolph H.; Sacramento Peak Observatory
Series: Special report -- no. 39; Special report (Harvard University) -- no. 39
Publisher: Harvard University
Published: 1951
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 15
Subjects: Stars; Observations; Tables
Other titles: A study of sky clarity and seeing conditions at night on Sacramento Peak.
Notes: "5 April 1951."

"Published under AMC contract W19-122ac-17 for the establishment of a solar observatory at Sacramento Peak, New Mexico."