A study was made of the usage by American scientists of selected Russian scientific journals which were translated under the sponsorship of the National Science Foundation and other agencies. Study data were compiled by making a physical count of the German, French, Russian and total citations which appeared in six U.S. scientific journals for the period from 1951 through 1964. It was found that citations to the selected Russian journals have gradually increased over the 14 years while citations to German journals declined markedly and citations to French journals also declined but not as markedly. In 1964, the rate of citations to the selected Russian journals exceeded the rate of citations to French articles in contrast to 1951 when French citations were two and one half times greater than all Russian citations. Citations to the selected Russian journals during 1964 were about one half the rate of citations to German journals, while in 1951 German articles were cited at a rate ten times greater than articles from the selected Russian journals and six times greater than all Russian citations. It was concluded that the translations of selected Russian journals are beginning to have more effect on U.S. scientific publication than French publications and have made great strides toward equalling the effect of German publications. (Author/JB)