21. SIMPSON, 1938 4000 ft., Nogales, Santa Cruz Co., Arizona March 13, 1938 Left Museum of Vertebrate Zoology at 12:30 PM Thursday, March 10, 1938 in University of California car # 170, an International panel, half-ton truck, model 1936; Dr. and Mrs. Seth B. Benson and I in the almost capacity loaded truck. Without event to San Fernando at 11 pm that night; stayed overnight at home of Mrs. Benson's parents. Dr. Benson and I left[illegible] the next morning at 8 AM for Nogales; however, generator trouble kept us in San Fernando until 10:30 AM; drove until 11 pm beyond Coachella, Calit That night, Friday, March 11, 1938 at 9:30 PM 4 mi. se of White Water, Riverside Co., California_ on US Highway 99 a kit-fox, Vulpes macrotis, crossed the road in the headlights. Slept in alkaline field in the rains and continued to Nogales at 7 am driving 439 miles to arrive at 10 pm MST. last night. To-day went across border to Nogales, Mexico_ senior and found, Margarito Delgadillo, who will accompany Dr. Benson and I, if we can get the truck across the border. Dr. Benson interviewed Senor Mascareñas_ who was Chief of Customs at Nogales for 16 years. He inspected our papers and couldn't find anything out of order. Dr. Benson then attempted to see the present chief customs official but failed, it being Sunday.