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|Material Type:||Government publication, National government publication|
|All Authors / Contributors:||United States. Bureau of Public Roads.; United States. Department of Agriculture.|
"March 21, 1923."
|Description:||52 pages ; 24 cm.|
|Contents:||Introduction. pp. 1. Table 1. Results from physical tests of road-building rock from 1916 to 1921, inclusive. pp. 2. Crushing strength or compression test. pp. 46. Table 2. Results of compression tests of rock made prior to January 1, 1916. pp. 48. Table 3. General limiting test values for broken stone. pp. 51. Table 4. Geographical distribution of rock samples tested from January 1, 1916 to January 1, 1922. pp. 52.|
|Series Title:||Department bulletin (United States. Department of Agriculture), no. 1132.|
|Responsibility:||prepared in the Bureau of Public Roads.|