Don Harmer, John Bahcall, and Ray Davis (l. to r.)

From left to right, Don Harmer, John Bahcall, and Ray Davis standing in front of an early small-scale 37Cl tank at Brookhaven National Laboratory. Their work in support of 37Cl (chlorine-37) solar neutrino experiments would later result in significant scientific discoveries. See FAC BAHCALL 015 for a photograph of the tank itself.