Photographer unknown2018-09-252018-09-25Circa 1967http://172.16.52.76:80/cdm/ref/collection/coll4/id/311https://hdl.handle.net/20.500.12111/5331The tank containing 100,00 gallons of perchloroethylene at the Homestake Gold Mine located 4,900 feet below ground surface in Lead, South Dakota . Raymond Davis, Jr., a close collaborator of John Bahcall, was a chemist with Brookhaven National Laboratory, which supported Davis's full-scale undertaking at Homestake. There are three additional images in the collection that were taken at Homestake.4 7/8 x 3 7/8B&WPermission to use this image must be requested from the Institute's Archives. Please contact archives@ias.edu.Homestake Mine (S.D.)37Cl (chlorine-37) neutrino detectorImage