Professor C. Derleth, Jr., December 21, 1920. Dean College of Civil Engineering, Dear Professor Derleth: This is my report on the CONCRETE-SLAB TESTS made for the California State Automobile Association and the Automobile Club of Southern California. Your letter of September 2, 1920, is my authorization for making these tests. Respectfully submitted, C. T. WISKOCIL, Associate Professor of Civil Engineering in Charge of Materials Testing Laboratory. |