R. Zweifel Sept. 25, 1951 San Gabriel River, Los Angeles Co., Calif. Frog hunting this morning in San Gabriel Canyon. Four adult Rana boylii boylii and one juvenile collected 3/4 mi E State 39 on C fork road. Water 16.8°C, air 4 up 18.4°C at 9:00 AM, DST. This is the same spot where I have collected on a number of previous occasions. Two adult Rana boylii boylii were taken exactly at the confluence of the north and west forks of the San Gabriel River. At the overlap locality on the North Fork I could find neither boylii nor muscosa. An adult Coluber lateralis seen here escaped into a hole beneath a boulder.