Reported in this newsletter in narrative and tabular form is the result of a 1972 Professional Technical and Scientific Manpower Survey and a 1974 National Survey of Scientists and Engineers, which also contains information for 1973. The two surveys contributed information for a longitudinal file for which demographic, educational, and employment data will be updated biennially. From the data collected, it was evident that the 300,000 individuals identified as scientists and engineers in 1970 have characteristics similar to those of 1,400,000 for whom detailed characteristics information was generated. The results of the analysis of the 1,400,000 scientists and engineers are presented in this paper. Data shown do not include scientists and engineers who have entered these fields since 1970. Three extensive tables present data relating the median annual salaries of the 1970 science and engineering labor force by field and type of employer in 1974; by field and work activity, 1974; and by field, sex, and highest degree held, 1974. (EB)