Pew Store 1941 Journal 8 July 23 Mexico D.F. to 12 mi. S of Cuernavaca Morelos, 4500' cut by a stream in a small canyon. Made camp & set traps. Caught small Hyla & Saw many Cnemidophorus & 1 Sceloporus. July 24 12 mi. S. of Cuernavaca, Morelos, Mexico elev. 4500' No mice (S.D. caught 2 Liomys). Stayed in Camp while others went hunting. Watched 2 monstros mexicanus in tree on other side of Canyon. Later crossed stream & found that it disappeared in the rocks & reappeared by a large pool 50 yards downstream. Also found a cleft in the rocks about 2'x 20' where there were many small bats. collected 2 & went around the rock where I found another entrance to the cleft & collected 5 more Bats. After lunch went for a swim in the big pool. The water came out of the ground into the pool from a cave with two two entrances by the pool. Investigated the cave & found it sloped up & had 2 entrances from dry land. Came back later, entered one of these entrances & collected a series of Vampire bats of which there were a great number in the cave. July 25 17 miles S. Cuernavaca to 35 Km. S of Chilpancingo, Guerrero. Broke camp about 2:30 P.M. The birds seen at this camp were: (*= not seen by myself.) Caracara, Black Swift, * Texas Kingfisher, Mexican motmot, Centurus chrysopterys, * Platypsaris aglaiae, Spinus psaltria, Turdus flavirostris, * Broad-billed Hummer, Giraudi Flycatcher, Derby Flycatcher, Couch Kingbird, Luca dove, * Black.