 The text was then revised by Ashley Montagu following criticisms submitted by Hadley Cantril; Edwin Conklin; Gunnar Dahlberg; Theodosius Dobzhansky, author of "Genetics and the Origin of Species" (1937); L. C. Dunn; Donald Hager; Julian Huxley, first director of UNESCO and one of the many key contributors to modern evolutionary synthesis; Otto Klineberg; Wilbert Moore; H. J. Muller; Gunnar Myrdal, author of "" (1944); Joseph Needham, a biochemist specialist of Chinese science; and geneticist Curt Stern.The introduction states that it was inevitable that UNESCO should take a position in the controversy.The preamble to the UNESCO constitution states that it should combat racism.