Aerology.
Contributors: Gregg, Willis Ray.
Series: Monthly weather review. Supplement / U.S. Department of Agriculture, Weather Bureau -- no. 12; Monthly weather review (United States. Weather Bureau) -- no. 12.
Publisher: G.P.O.
Published: 1918
Place of publication: Washington
Language: eng
Number of pages: 82
Subjects: Meteorology -- United States
Notes: 3 folded charts inserted.

"Received August 12, 1918. Issued Oct. 26, 1918."

"W.B. no. 660."
Table of contents: title: I. Free-air data at Drexel, Nebr., and Ellendale, N. Dak., aerological stations : January, February, and March, 1918, inclusive / by the Aerological Division, Willis Ray Gregg, in charge; title: II. Free-air temperatures during the cold winter of 1917-18 / by Willis Ray Gregg; title: III. The Ellendale Aerological Station / by Vincent E. Jakl.