01400cam a22002531 4500 no 38000004 DLC 20260227111852.0 821214s1938 ctua b 000 0 eng c no 38000004 (OCoLC)9052279 U.S. Nav. Obs. MShM DLC QB813 .S5 Slocum, F. (Frederick), 1873-1944. Stellar parallaxes derived from photographs made with the 20-inch refractor of the Van Vleck observatory, by F. Slocum, C.L. Stearns, B.W. Sitterly. Middletown, Conn., [Lithoprinted by Edwards brothers, inc.] 1938. xi, 277 p. incl. front., illus., tables, diagrs. 27.5 cm. Publications of the Van Vleck Observatory. vol. I. At head of title : Wesleyan university. "Reference list" : p. 25-26. Introduction. -- History. -- Addresses at ground-breaking. -- The dedication. -- The Van Vleck observatory. -- The lens and its tests. -- The mounting and accessories. -- The measuring machine and its tests. -- Program. -- Method of observation. -- Method of reduction. -- Average results and comparisons. -- Description of tabulations for individual stars. -- Description of summary. -- List of references. -- Tabulations for individual stars. -- Summary. Parallax Stars. Van Vleck Observatory. 51228 51228