E.V. Miller 1940 22 General Account There were scattered pines and much low bunch here. May 1 Took in my last night traps 1♂, 1♀ Peromyscus melanotis, 2♂, 1♀ Peromyscus melanophrys. I caught a small Sceloporus ? sp. And last night I shot 2 bats, 1♂ Lasinius cinereus and 1♂ Epterusius fuscus. May 2 Yesterday afternoon we drove toward Mt. Popocatepetl, camping camping at the end of the road, about ½ mile N of the main base or slope of the mountain. Our elevation—11,000± ft. Yesterday afternoon I set 50 M. specials and 4 Schuyler No. 1’s. The habitat was large thick bunch-grass with a few small scattered pines. It rained about 1 inch after my traps were set, in the evening. This morning I took 6♂, 4♀ Peromyscus melanotis and 1♂, 1♀ Peromyscus melanophrys. I rebaited and reset my traps and left them out. Early in the afternoon it began to hail small stones and has continued until now—4:20 P.M. Popocatepetl had a fairly heavy covering of snow when we arrived. This (or the hail) has extended 1 or 2 thousand feet lower than it was yesterday. May 3 Set 47 live traps for mice last night in addition to the 50 left out from night previous. In the live traps took 2♂, 2♀ Peromyscus melanotis. In the others took 3♂, 1♀ Peromyscus melanotis, 1♀ Peromyscus melanophrys and 2♀ Rheithrodontymys megalotis. In the morning from 8³⁰ to 10³⁰ I