On tour

Caption: "On tour--Part of a group of 50 scientists who toured the Chas. Pfizer & Co. plant, 630 Flushing Ave., yesterday observe Pfizer employees pouring petri dishes in preparation for biological assay work. The process is pointed out to them by John L. Davenport, executive vice president of the Pfizer Company. The scientists from all over the world, are attending the 47th annual meeting of the American Institute of Chemical Engineers."