For some time there has been wide concern within the scientific community with the need to improve the public's understanding of science, and, gradually, something has been done about it with the help of scientists themselves. The results to date may be far from satisfactory, but there is some cause for naodest gratification. Many newspapers now employ specially trained science writers to interpret scientific events for their readers, and the number of books written for the layman, by both scientists and nonscientists and covering a wide range of technical fields, has risen markedly. Even the television networks have displayed some encouraging initiatives of late in going beyond the usual rubrics of space and medicine and in using scientists to discuss molecular biology and masers. Unfortunately, there has been nothing like the same concern within the scientific community with the need to improve the public's understanding of the various roles played by scientists in the development of national policies. While there has been an increasing, though still slight, volume of scholarship concerned with the interactions of science and public policy, it has been largely the work of political scientists and historians. Much of this work has been exceedingly valuable and stimulating, and we need more of it. But there is still a need for scientists who have participated in government, particularly at the policy level, to speak out for themselves. This need could not be more fully demonstrated than from reading America's New Policy Makers: The Scientists' Rise to Power (Chilton, Philadelphia, Pa., 1964. 298 pp. $6.95), by Donald W. Cox. This latest entry in the field of government and science, by a nonscientist (Cox has an Ed.D. from