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Summaries of climatological data by sections.

By United States..
Washington, Weather bureau, 1926 .
3 v. , At head of title: U.S. Dept. of agriculture. Weather bureau ... 31 cm..

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Ground water in northwestern Pennsylvania /

By Leggette, R. M..
Harrisburg : Pa. Dept. of Internal Affairs, Topographic and Geologic Survey, 1936 .
iv, 215 p. : , Prepared in cooperation between the United States Geological Survey and the Pennsylvania Topographic and Geologic Survey. 24 cm..

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Ground water in south-central Pennsylvania,

By Lohman, Stanley William,.
Harrisburg, PA., Department of internal affairs, Topographic and geologic survey, 1938 .
vii, [1], 315 p. , "Published reports": p. 5-7. 24 cm..

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Ground-water resources of Pennsylvania,

By Lohman, Stanley William,.
Harrisburg, Pa., Dept. of Internal Affairs, Topographic and Geologic Survey, 1941 .
vi, 32 p. , At head of title: Pennsylvania Geologic Survey, fourth series. 24 cm..

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