The third enlarged edition has a new chapter titled --'Soil Engineering Experiments' which describes the laboratory tests normally performed at the undergraduate level. The test description is in the format of a laboratory manual. The following tests are covered: moisture content determination, specific gravity determination,?? particle size determination, consistency?? limits determination, permeability determination, consolidation test, compaction tests, field density and voids ratio determination, shear strength determination,??California Bearing?? Ratio determination, North?? Dakota??Cone Test?? and??swelling?? pressure determination.