167 resultados para Petrified forests
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"Revised January 1966"--P. [3] of cover.
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Cover title.
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Cover title.
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"Slightly revised July 1974"--P. [4] of cover.
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S/N 0100-03312.
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Cover title
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The first issue of this report appeared in 1896, with title: Report on the forests of Western Australia. "A large portion of the original matter has ... been fairly well retained, but this has been considerably added to ... so as to make the report an up-to-date compendium upon the forests of Western Austalia." - Cf. Pref.
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Examination of the forest conditions was made under the joint supervision of the Geological survey of North Carolina, of the Bureau of Forestry of the Department of Agriculture, and of the U. S. Geological Survey.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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"July 30, 1996"--Pt. 4.
Specifications for construction of roads and bridges in national forests and national parks, 1941. /
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"This publication may be designated as FP-4l."
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Mode of access: Internet.
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Published also as thesis (Ph.D) University of Illinois, 1925.