THE LEGISLATION ESTABLISHING THE NATIONAL SCIENCE FOUNDATION STIPULATED THAT IT MAINTAIN A REGISTER OF SCIENTIFIC AND TECHNICAL PERSONNEL AND IN OTHER WAYS PROVIDE A CENTRAL CLEARINGHOUSE FOR INFORMATION COVERING ALL SCIENTIFIC AND TECHNICAL PERSONNEL IN THE UNITED STATES. THIS PUBLICATION BRINGS TOGETHER INFORMATION FROM MANY SOURCES ON THE SUPPLY, EMPLOYMENT, UTILIZATION, CHARACTERISTICS, COMPENSATION, AND EDUCATION OF THE NATION'S SCIENTIFIC AND TECHNICAL MANPOWER. IT IS INTENDED TO SERVE BOTH AS A SOURCE BOOK AND AS A GUIDE TO MORE DETAILED INFORMATION IN THE VARIOUS ORIGINAL SOURCES FROM WHICH THE DATA WERE DRAWN. SINCE COMPREHENSIVE INFORMATION ON THE HEALTH FIELDS IS PROVIDED BY OTHER FEDERAL GOVERNMENT AGENCIES, AND INFORMATION ON MANPOWER IN THE SOCIAL SCIENCE FIELDS IS VERY LIMITED, THESE FIELDS ARE TREATED VERY SELECTIVELY IN THIS REPORT. PRIMARY ATTENTION IS GIVEN THE PHYSICAL SCIENCES, THE LIFE SCIENCES, AND ENGINEERING FIELDS. THE LATEST AVAILABLE DATA ARE USED THROUGHOUT AND, WHEN PERTINENT FOR SHOWING TRENDS, STATISTICS FOR EARLIER YEARS ARE INCLUDED. OVER 200 TABLES AND CHARTS ARE SPREAD THROUGHOUT THE VOLUME. AN APPENDIX LISTS NUMEROUS ORGANIZATIONS CONCERNED WITH SCIENTIFIC AND ENGINEERING MANPOWER INFORMATION AND THE KINDS OF DATA GENERATED BY THESE ORGANIZATIONS, A LIST OF REFERENCES, AND A SUBJECT INDEX. THIS DOCUMENT IS AVAILABLE AS NS1.2--M31/4 FOR $1.25 FROM SUPERINTENDENT OF DOCUMENTS, U.S. GOVERNMENT PRINTING OFFICE, WASHINGTON, D.C. 20402. (ET)