Circular
Subtitle: distribution of weather information, forecasts, and warnings by radio for the benefit of navigation on the Great Lakes
By: U.S. Department of Agriculture, Weather Bureau
Contributors: United States. Weather Bureau
Series: Circular
Publisher: U.S. Weather Bureau
Published: 1925
Place of publication: Washington, D.C
Language: eng
Subjects: Weather forecasting
Notes: Caption title.

Circular No. 12 -- Radio.