N slope Int. Lacaguigue, 4600', dep't. Morgan, El Salvador Jan. 12, 1942. A bit, then took a trail over it. On the way, passed through someone else's finca, quite a bit smaller than Caldera's. Took a trail leading NW to the finca. Came to a Y and took the wrong fork; the trail ran out, and I was stranded in the middle of a coffee grove. Got completely lost and wandered through the coffee and the brush for about an hour before I got to a trail leading home. Skinned and rested 2 m. Jan. 13, 1942. Set 40 traps (34 snares + 6 rats) in along a stream on the E slope at 3700'. Most of the sets were on rocks or on flat muddy places right by the stream. Some of the sets were made with part of the traps actually in the water. The rat traps were all set in the running water for Rheony's, in places where the stream channel was nar- nowed by rocks, so that the mice would be for- ced to swim over the handle of the trap. However, the stream at this point does not seem par- ticularly well suited to these mice, as it is too deep, too swift, and too open. The stream in which Stinton caught most of his was shallower and slower, and thickly overlaced with vines. I attempted to place my traps in places that looked m'Pere- mupens-like, although three were set along a stone wall, and a few others in the rocks away