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Frost in the United States

Nature volume 101, page 234 (23 May 1918) | Download Citation



IN a paper with the above title presented before the second Pan-American Scientific Congress at Washington (Washington: Government Printing Office, 1917) Mr. William Gardner Reed discusses the damage by frost in the United States. Following the rule of the-Weather Bureau, he classifies frosts as “light,” “heavy,” and “killing,” but he determines the dates of the last killing frost in spring and the earliest in autumn from the records of temperature, and not from the reports of damage. This is fully justified by the fact that the observations of temperature are continuous and exact, whereas the damage depends on many conditions.

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