Printed for use of Committee on ways and means, House of Representatives.
Yellowstone national park
Geological history of the Yellowstone national park. Arnold Hague. (U.S. National park service) 22p pa ’20
Yosemite national park
Sketch of Yosemite National park and an account of the origin of the Yosemite and Hetch Hetchy valleys. F. E. Matthes. (U.S. National park service) 45p pa ’20 10c Supt. of documents
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Quarterly List of New Technical and Industrial Books
Chosen and annotated for general libraries by the Applied Science Reference Department Pratt Institute Free Library, Brooklyn, N. Y.