Official Good Roads Year Book of the United States, Volume 6

Front Cover
American Highway Association., 1917

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Page 25 - An act to enable any State to cooperate with any other State or States, or with the United States, for the protection of the watersheds of navigable streams, and to appoint a commission for the acquisition of lands for the purpose of conserving the navigability of navigable rivers...
Page 29 - That immediately upon the execution of any cooperative agreement hereunder the Secretary of Agriculture shall notify the Secretary of the Treasury of the amount to be expended by the United States within or adjacent to any national forest thereunder, and beginning with the next fiscal year and each...
Page 15 - State shall be done in accordance with its laws, and under the direct supervision of the State...
Page 352 - The cement shall be stored in such a manner as to permit easy access for proper inspection and identification of each shipment, and in a suitable weather-tight building which will protect the cement from dampness.
Page 462 - Highway Engineering, as Presented at the Second International Road Congress. Brussels. 1910 8vo.
Page 26 - Agriculture in the survey, construction, reconstruction, and maintenance of roads and trails of primary importance for the protection, administration, and utilization of the national forests, or when necessary, for the use and development of the resources upon which communities within or adjacent to the national forests are dependent...
Page 362 - Solid or semi-solid native bitumens, solid or semisolid bitumens obtained by refining petroleum, or solid or semi-solid bitumens which are combinations of the bitumens mentioned with petroleums or derivatives thereof, which melt upon the application of heat and which consist of a mixture of hydrocarbons and their derivatives of complex structure, largely cyclic and bridge compounds.
Page 464 - Print. 8s. 6d. net. PORTLAND CEMENT: ITS COMPOSITION, RAW MATERIALS, MANUFACTURE, TESTING, AND ANALYSIS. Second Edition. With 100 Illustrations.
Page 18 - State, general information as to its laws affecting roads and the authority of the State and local officials in reference to the construction and maintenance of roads; as to the State highway department, how equipped and organized; as to...
Page 351 - The cement shall not develop initial set in less than 45 minutes when the Vicat needle is used or 60 minutes when the Gillmore needle is used. Final set shall be attained within 10 hours.

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