Mayhew 1961 Journal 40. June 5 Southwestern Arizona saw) in these mountains. During the hot part of the day we drove to Sila Bend, then south on state highway 85 through Ajo to Organ Pipe National Monument. We washed up & ate in Organ Pipe while we were waiting for it to get dark. Then we drove to Lukeville & began night collecting. Between Lukeville and Sita Bend we collected 1 Chionactis palaiostria, 1 Phyllorhynchus decurtatus, 1 Phyllorhynchus crowni, 2 Coleonyx variegatus & salvaged 1 Phrynosoma solare that was DOR. We collected from 2030 to 0030 and drove 84 miles in the process. We camped 3 miles south of Sita Bend. We drove 273 miles today. June 6 We drove north of Sita Bend this morning looking for lizards. We saw several Callisaurus draconoides & Dipsosaurus dorsalis, but they were the spookiest lizards of these species I have ever seen. The Dipsosaurus in particular were much different in this respect than the ones we find in southern Calif. They would go down a hole long before we were near enough to capture them. I was quite surprised with their reaction. We drove north to Arlington, then west