Photographer unknown2018-09-252018-09-25circa 1967http://172.16.52.76:80/cdm/ref/collection/coll4/id/313https://hdl.handle.net/20.500.12111/5164Ray Davis (right) enters the room containing newly installed gas circulation pumps for the 37Cl (chlorine-37) detector located at the Homestake Gold Mines in Lead, South Dakota. Gerhart Friedlander (left) is shown already engaged in the inspection process. John Bahcall took great interest in the work being done at Homestake Mines. There are three additional images in the collection that were taken at Homestake.(4 x 5), 8 1/2x 11B&WPermission to use this image must be requested from the Institute's Archives. Please contact archives@ias.edu.Davis, Raymond, 1914-2006Friedlander, GerhartHomestake Mine (S.D.)Image