Journal Hafner, M.S. 1977 6.5 km. S Pátzcuaro, 2700m., Michoacán, México. 29 July 0600 awoke, very cold and wet... The bags were soaked. We checked Sherman traps: Results: 1 Peromyscus sp. Success: 1/100 The Peromyscus was quite large - on the order of P. californicus. The animal was released... We were quite disappointed as we had hoped to catch Liomyx. We next checked the gophers traps: Results: 2 Thomomys umbrinus Total: 17 Thomomys umbrinus 4 Pappogeomys gymnurus All Thomomys were small, dark individuals; it looked as though we had many juveniles. The Pappogeomys were of 2 color types - 1 very black, the other deep brown. The local people collected pitch from the conifer trees using small (6" dia.) clay pots. The tree was slashed (for about a meter) and the clay pot was affixed beneath the vertical wound. Of course, the pot also collected much rainwater, but the pitch