The thesis that intelligence is based on heredity was dramatically revived in 1969 by an article in the "Harvard Educational Review" by Arthur Jensen, a psychologist at the University of California at Berkeley. The article, which received wide attention, was sharply criticized by those who hold that it is environment rather than genes which puts populations at a disadvantage. The materials assembled for this bibliography have been selected (from numerous published materials on the subject) to represent as many points of view and scientific disciplines as have made themselves known since Jensen's article. To preserve the sequence of the debate, we have maintained in each section a chronological order. Two predecessors of Jensen, Young and Dobzhansky, are included as examples of earlier theorists who deal with some aspects of genetics. In attempting to arrange and classify the points of view, we have found many works which elude hard and fast categorization. This accounts for some seemingly arbitrary decisions of ours, and for the fact that the largest section includes those writers who consider intelligence to be a complex amalgam of both heredity and environment--the "synthesizers." One thing is clear--no one discipline (psychology, sociology, or even genetics) can be linked to a strict hereditarian or a strict environmentalist approach. This will be apparent from the identification of the author (as he was when he wrote) which follows each entry. The index lists authors and publications. (Author/JM)