The results of physical tests of road-building rock
By: compiled by D.O. Woolf.
Series: Miscellaneous publication / United States Department of Agriculture -- no. 76; Miscellaneous publication (United States. Dept. of Agriculture) -- no. 76.
Publisher: U.S. Dept. of Agriculture
Published: 1930
Place of publication: Washington, D.C
Language: eng
Number of pages: 148
Subjects: Road materials.; Rocks.
Notes: Caption title.

Contribution from Bureau of Public Roads.

"Supersedes Department bulletins: 370, The results of physical tests of road-building rock; 670 The results of physical tests of road-building rock in 1916 and 1917: and 1132, The results of physical tests of road-building rock from 1916 to 1921 inclusive, and supplements the data in those bulletins."

Chiefly tables.