Crowley 1942 June 4 259 Buena Vista Ave San Francisco City & Calfi Journal As a summary of this trip, I ought say that the major part of the evidence is negative. Ostensibly a mammal- collecting trip, the expedition yielded more in reptiles and in bird notes than in mammal skins. I put up 32 specimens of which 14 were Sceloporus, 1 a Coral King Snake, 1 an alligator lizard, 1 a Microtus, 1 a chipmunk and the rest (14) were Peromyscus. The scar- city of specimens may be due to a num- ber of factors - inexperience of course, plus the cold temperature which reduce the number of mammals probably, plus the fact that breeding season is still in progress - hence this is the low time of year. De. this year's crop of young will swell the mammal population which at present is at low ebb due to the hardships of winter, etc. Peromyscus maniculatus and boylii are evidently the 2 most abundant mammals. we set for. O. truei is less abundant - I got the only one we girl caught- in sunnwalt, first time we trap- ped there. Sceloporus are abundant. Snakes are still sluggish - not so much in evidence