Contents. - Memo from L.J. Shaffer, Const. Insp., to D.J. Dayton, Assoc. Civ. Eng., March 31, 1965. - Standard method of test for slump of Portland cement concrete, American Society for Testing Materials (ASTM Designation: C 143-58, pages 790-791). - Be sure of your cure, by Walter K. Wagner, Concrete Construction,(February 1965, pages 37-39). - Simple controls for making good concrete, by G.B. Southworth, Concrete,(September 1952, pp. 3-7, 37). - Concrete specimen and aggregate report, Walnut Creek Filter Plant, EBMUD, April 1965 file copies.