Favorite this☆ Laboratory rats in cage, Parke, Davis & Company Description: View of laboratory rats in a cage at Parke, Davis & Co. Sign on cage reads: "Breeding colony. Cage #15, 4th generation, born 8-5-31." Handwritten on back: "Rats! Research." Details Resource ID: bh022643 Subject: Rats as laboratory animals--Michigan--Detroit Parke, Davis & Company Pharmaceutical industry--Michigan--Detroit Photographic prints Date Issued: 1931 Format: 1 photographic print ; 10 x 8 in. Member of: Burton Historical Collection Filing Location: D/Industries and business houses-Parke Davis Rights: Physical rights are retained by DPL. Copyright is retained in accordance with U.S. copyright laws.
