[From Public roads, v. 12, nos. 4, 5, 7, and 8, June, July, Sept., and Oct. 1931.]
Notes:
[From Public roads, v. 12, nos. 4, 5, 7, and 8, June, July, Sept., and Oct. 1931.] * For Sale by Superintendent of Documents. Paper, 40c.
Notes:
CONTENTS.—Subgrade soil constants, their significance, and their application in practice [with bibliography]; reported by C. A. Hogentogler, A. M. Wintermyer, and E. A. Willis.—Soil profile and subgrade survey [with bibliography]; reported by W. I. Watkins and Henry Aaron.—Procedures for testing soils for determination of subgrade soil constants; by A. M. Wintermyer, E. A. Willis, and R. C. Thoreen.—Graphical solution of data furnished by hydrometer method of analysis; reported by E. A. Willis, F. A. Robeson, and C. M. Johnston.
Availability:
* For Sale by Superintendent of Documents. Paper, 40c.