Frost data of U.S.; and length of crop-growing season as determined from average of latest and earliest dates of killing frost.

Bibliographic Details

Corporate Author:	United States. Weather Bureau
Format:	Government Document eBook
Language:	English
Published:	[Washington] : [publisher not identified], 1911.
Series:	Weather Bur. Doc. No. 449
Subjects:	Maps. Temperature. Electronic books.
Online Access:	Connect to the full text of this electronic document