This report provides information on total Federal Research and Development (R and D) expenditures during the period of 1960-72. The report is divided into two parts. Part I gives an overall view of priorities funded by the Federal government. The total Federal R and D expenditures are arranged by functions. In addition, a brief statistical account is presented about the ratio of R and D expenditures to total outlays within each function during the period covered. Part II provides a detailed treatment of R and D expenditures, function by function. The sections are presented in descending order of total outlays for 1972. Under each major function, data are gathered for different subfunctions and their ratios to total outlays. The data for years previous to 1972 are compiled and presented according to subfunction. The arrangement of subfunctions under major function titles is in descending order based on 1972 funding. Important trends are noted and analyzed for each function. The tables are presented in the appendix for figures for each year during 1960-72 according to agency programs. (PS)