Quest 1948 Journal 119 June 13 Todos Santos, 50 ft. Baja California about 200 yds NW of town. A small stream for irrigation flows in the fields here and the bats, particularly the Tadarida mexicana and Lasiurus ega, congregated over a spot where the sugar cane fields met the palm trees, other trees, and the stream. The bats were flying at 7:15 and continued doing so 'till dark. I shot two Tadarida mexicanos of which one was soot black; presumably from roosting in a chimney during the day time. June 14 Mina Palmar del Medio 400 ft 4 mi ESE Pescadero Baja Calit. Camped last night on the playa south of Todos Santos. Minimum temperature there last night was 59 F. Visited a mine at the above location this afternoon. Pescadero is a small village south of Todos Santos, the principle industry of which seems to be raising sugar cane and corn. The road to the mine we investigated turns off the main road about 2 miles south of Pescadero and leads into the foothills of the La Laguna mountain. The mine was located on an abandoned road about 500 yards south of a small canyon containing a dozen palm trees from which the mine was named. It consisted of a single horizontal shaft about 75 yards in length and curved in an arc so