Quast 1948 Journal 18 April 17 Cerro Prieto 30 ft 20 mi SSE Mexicali Baja Calif. Minimum temp. the night of the 15th at Cerro de Centinela was 76 F, maximum during the day of the 16th was 100 F. Minimum at this camp last night was 63 F and the temperature at time of writing 8:00 A.M. is 71 F. 9:30 A.M. Have moved camp from location beside ditch irrigation to base of Cerro Prieto on N.E. side. The reason for moving was to be closer to the rocks of the mountain and farther from the pigs, goats, cows, and Mexican dogs of a farmhouse (Agua Caliente on map). The trip from Cerro de Centinela camp to here yesterday was hot, dusty, and dry. We left the former camp at about 2 P.M. when the thermometer was registering 100 F and drove into Mexicali to see about our game permits, have a flat tire fixed on the Dodge, and buy provisions. As soon as we hit the irrigated area west of Mexicali, the air became very humid and the smell of alfalfa came to us. Bird life increased tremendously; doves, shrikes, burrowing owls, white egrets and herons becoming plentiful. The irrigation ditches are lined with bamboo thickets affording good cover for many bird species. Meadow larkes were abundant.