Ocast 1948 Journal #7 April 15 Cerro De Centinela 300 ft 13 mi WSW Mexicali; Baja California and. I was very surprised at San Felipe to find dried specimens of the mushroom Coprinus comatus along the roadside. Tevie said he found one at El Mayor and Dr. Benson brought in a mushroom of the puffball type, but with a stem elevating the head about 1/2 in above the ground. The cup was full of brown spores. Laguna Salada may be seen to the S.W. at the pass 1 mi west of our camp. Murray stated that he has seen only Vita and Calisaurus at this location. Dr. Benson killed a shrike at sundown this evening. Our camp is located by a sandy wash by an ironwood tree and surrounded by alluvial material on which is growing ironwood, Ocotillo, Encelia, Cthella cactus, and Creosoto bushes with occasional shy tufts of grass in the sand proper. April 17 Cerro Prieto 30 ft 20 mi SSE Mexicali Baja Calif. We are camped approx. 500 yds N.E. Cerro Prieto proper next to a large irrigation canal running generally north. We are surrounded by large mesquite trees.