Myrna Leong 1969 Journal 68 Aug. 11 (cont.) 1 km. N, 12 km. E Pariacota, 8500 ft.: Depto. Arecahi, Peru. The rock walls. Both are andium. Dr. Koford checked his traps. He caught nothing in the 28 large shermans he set out and had so carefully rubbed over with dirt to make them look hospitable to the mice. In his snap traps, set along the same line, he caught 4 mice; an andium, 2 that are definitely magister, and 1 possibly a magister. These were set near rocks in brushy, arista slopes. P. magister seems to be characterized by large brown feet, greyish head contrasting with a brown body. It is a large mouse, and often has a pectoral streak. I have injected my 2 mice and Ray's mouse for chromosome work. 4:30 p.m. Went further up the terraces to near where Dr. Koford had caught his mice and snap traps. We glued some dust unto the first part of the floor of the set traps (37 traps with dust on the front doors) to make the traps seem more inviting to the mice. I set them under brushes and near rock piles and rock walls. I checked the mist net and found a zonotrichia capensis tangled in it. I untangled it and released it. There were many hummingbirds around. They seem to be able quite well to see the net and may hover just before it and fly around to look at it from different