W.J. Piemer 1947 Journal Hassen Volcanic National Park, Calif. 5 Aug. Robert Stebbins, his wife and two children, and myself left Canyon, Contra Costa Co. on the morning of date, proceeded on U.S. 99E, by U.C. truck #112 to Red Bluff. Leaving Red Bluff at 1930 we proceeded on Calif #36 into Hassen Park. Just after dark a large rattle- snake, probably C. viridis, was observed crossing the road in the headlights. An unsuccessful attempt to kill or capture it was made. Other animals observed on the road included a fox, numerous rodents, among them a kangaroo rat, and several toads. One toad, which was taken, is entered in R.C. Stebbins' field notes. Camp was set up near Manzanita Lake about 2330. 6 Aug. The greater part of the day was