Mayhew 1958 Journal 79. May 3 Mojave Desert, San Bernardino Co., Calif. pair of Canis latrans and caught a couple of Bufo boreas. We reached UCR at approximately 11:30 PM (PDST). During the day we saw 3 live rattlers and one dead one, so they seem to be more numerous this year. In fact, we have seen live rattles on every class trip this year. Ed Koo nearly stepped on one today, but luckily it didn't strike at him. We caught 6 chuckwallas this trip, + saw 3 more, at the same spot we saw and caught only one last year. The weather today was nearly perfect — no appreciable wind and temperatures in the 80's. May 10 Univ. Calif. campus, Riverside, Riverside Co., Calif. This morning at 8:40 AM (PDST) the Zoology 146 class began a field trip to the east side of the campus. Rudy Ruibal took ½ the class + mapped some quadrats after looking for animals for a while. My group (with Bobby on his first field trip) spent the morning looking for animals. The early portion was spent looking at birds, the latter portion was spent looking for reptiles. The morning was overcast, but no rain fell during our trip. The animals seen were: