Proceedings, 1961--International Symposium on microchemical techniques : based on a symposium conducted by the Pennsylvania State University, College of Chemistry and Physics. organized by the Metropolitan Microchemical Society, under the sponsorship of the International Union of Pure and Applied Chemistry, Commission on Microchemical Techniques, Section of Analytical Chemistry, and supported in part by the National Institutes of Health of the U.S. Public Health Service, University Park, Pennsylvania, Augst 13-18, 1961 / edited by Nicholas D. Cheronis