This issue of the IRCD Bulletin is devoted to commentaries on an article by Arthur R. Jensen on the nature-nurture controversy in a recent number of "Harvard Educational Review." Contents of the Bulletin are comprised of the following: "Education, Ethnicity, Genetics and Intelligence; Jensenism: Another Excuse for Failure to Educate" (Edmund W. Gordon); "What Jensen Article?" (Carol Lopate and Edmund W. Gordon); "A Comment on the Jensen Essay" (Benjamin S. Bloom); a statement by the Council of the Society for the Psychological Study of Social Issues entitled "Psychologists Comment on Current IQ Controversy, Heredity versus Environment"; "A Flaw in Jensen's Use of Heritability Data" (Allan C. Goldstein); "On Jensen's Report: Statement on Race Differences in Intelligence, Occasioned by Arthur Jensen's Article" (Psychologists for Social Action); "How Can We Respond Effectively?" (Howard E. Gruber); and "Selected Bibliographies" of works relating to the nature-nurture issue. [This issue of the IRCD Bulletin also contains the article "Behavior-Genetic Analysis and Its Biosocial Consequences," by Jerry Hirsch (reprinted from the February, 1970 number of "Seminars in Psychiatry") which, however, is not reproduced. Copies of the IRCD Bulletin containing this article may be obtained from the ERIC Information Retrieval Center on the Disadvantaged, Teachers College, Columbia University, New York, N.Y. 10027.] (RJ)