January 10, 1927 - Reithrodonomys No. 12328 and Peromyscus Nos. 12331, 12334, 12335, 12336, 12337, 12338, 12339, & 12340, were caught by G.D. Stirton at an altitude of 4300 feet on the volcano. For classification see his notes. Peromyscus No. 12329 was captured in a ravine at the edge of the jungle, another No. 12330 was caught at the base of a leaning tree in the dense jungle. No Tylomys Nos. 12332, and 12333 were caught on horizontal limbs in dense jungle at an altitude of 1900 feet. Another tylomys was taken in the young coffee today, No. 12341. Peromyscus Nos. 12342, and 12343 were caught in a shady ravine at the edge of the coffee. Another No. 12344 was caught in the young coffee near by. January 11, 1927 - Peromyscus Nos. 12345 to 12352 inclusive, were taken by G.D. Stirton at 4300 feet altitude. Tylomys No. 12353 was caught in the coffee field at 1900 feet by me. Arideus Nos. 12354 to 12358 inclusive were shot by me where I found them on the under side of a huge flat lava rock in a shady ravine.