Part A deals with the physical properties of soils and Part B with the theories of soil mechanics. These to parts are very short, but they contain all that engineering students and the average engineer need to know about soil mechanics proper at the present time. The heart of the book is Part C.Part Cdeals with the art of getting satisfactory results in earthwork and foundation engineering at a reasonable cost, in spite of the complexity of the structure of natural soil strata and in spite of the inevitable gaps in our knowl- edge of the soil conditions. To achieve this goal the engi- neer must take advantage of all the methods and resources at his disposal--experience, theory, and soil testing included. Yet all these resources are of no avail unless they are used with careful discrimination. because almost every practical problem in this field contains at least some ftresibhiht precedent.