The first soil testing book was written by Professor T.W. Lambe of MIT in 1951. The book covered 13 different soil tests in relatively good detail. This was widely used as a reference book for laboratory testing of soils for several decades. This 165-page classic is currently out of print. Since then, there have been a few soil testing books written by Bowles (1986), Das (2008), Day (2001), Germaine and Germaine (2009), Head (1992b, 1992c, 2006), and Liu and Evett (2009). The three-part manual by K.H. Head discusses the laboratory tests in great length, getting into the nitty-gritty details of each test and is quite valuable in troubleshooting. The second and third volumes closely follow the laboratory equipment manufactured by ELE International, one of the world’s largest suppliers of soil testing equipment. For triaxial testing, The Measurement of Soil Properties in the Triaxial Test by A.W. Bishop and D.J. Henkel (1962) is probably the most popular book. Lately, with
