Aller, Lawrence H.,The Abundance of the Elements, Interscience, New York, xi plus; 283 pp., 1961, $10.00.Auger, Pierre,Current Trends in Scientific Research, Survey of the Main Trends of Enquiry in the Field of the Natural Sciences, the Dissemination of Scientific Knowledge and the Application of Such Knowledge for Peaceful Ends, United Nations, New York, 245 pp., 1961, 33s.