CLAIMS have been made that certain American breeds of dairy cattle are of immemorial antiquity in their modern form. These claims are set out in herd books, the earliest of which were published in America, and even in publications having the cachet of the U.S. Department of Agriculture. History cannot substantiate these claims, and Mr. Parmalee Prentice has successfully demolished them by his careful examination of the evidence and this record of his conclusions. American Dairy Cattle Their Past and Future. By E. Parmalee Prentice ; with Chapters on Dairy Cattle in America, by Ernest L. Anthony, Lloyd Burlingham, Clifford L. Clevenger, Clifford T. Conklin, Lynn Copeland, Herbert P. Davis, Rockefeller Prentice and Edwin G. Woodward. Pp. xix + 453 + 51 plates. (New York and London: Harper and Brothers, 1942.) 3 dollars.