T. Rodgers -1940 Mrs. Vert. Zoal, Univ. Calif., Berkeley, Calif. Sept. 19 Acc. no. 6342 Wilden Road, at east edge of Berkeley in Contra Costa Co., Calif. Sept. 17, 1940 2680? Crotalus viridis - 659 +43+43 (7 rattler and button) collected and brought into museum by John Hunter, 3531 West St., Oakland. After this snake was chloroformed (about half an hour after chloroform was allowed to evaporate from cotton in a gallon jar, and about 15 minutes after she had quit moving) we noticed that she was full of something, and, whatever it was, it was moving. We cut her open and found six young. One was out of its membranous bag, but still attached by an umbillicus. It was not the most posterior, as it had worked its way forward. They were very much alive. I would cut the membrane open and reach in with forceps [illegible] and work them out. Two of them struck at the forceps before they had even started out through the hole I had cut. All were willing to strike immediately, but one was weaker than the rest. Three hours later it had died. Eighteen hours later five were still very much alive. I chloroformed them all, and weighed and measured them. Weights and measurements follow on page 172, under numbers 2682-2687.