The end product,"" as these authors put it, ""cannot be clearly foreseen,"" but the overall trend in the transformation under discussion here seems quite certain to them; bluntly, it is that the more equal in opportunity some Negroes become, in one way or another, the more pressure they will bring to bear to achieve full equality for all in every sense. Perhaps one does not need the disciplines of sociology to guess this much, but it may be just as well to have it stated and proven methodically. The first half of the book scrutinizes the major themes ""in the adjustment of Negro Americans to subordination,"" from ""compliant adaptation"" to ""increasing and increasingly overt pressure for integration."" The second half takes ""a hard look at the hard data"" dealing with actual conditions, past, present, and by implication, future. Comparisons with whites are cautious and correspondingly useful. Written as it was during ""the long hot summer"" of the civil rights struggle, the volume reflects a sense of public urgency in a manner and to a degree very rare in scholarly circles, yet the advantages of the scientific perspective are also maintained throughout.