From measurements made in the stratosphere and upper troposphere, atmospheric inventories of CCl3F, CCl4, and SF6 are calculated fo April and July 1975. Mean Northern Hemispheric altitude profiles of CCl3F and CCl4 in April 1975 show reasonable agreement with predictions of one-dimensional diffusion models. From the distribution of these trace gases in the stratosphere, including comparisons with a few 85Kr and tritium measurements, we deduce a stratospheric circulation pattern consistent with patterns of a number of radioactive substances which have been injected into the stratosphere. The observed stratospheric and tropospheric inventories of CCl3F and Sf6 are consistent with an atmospheric residence time of 26 years and discount the existence of an important tropospheric sink