Pearson - 1997 7 her shermans 2 olivaceus, 4 longipilis, 2 Oligoryzomys. My 13 MS had 3 olivaceus and 1 Oligo; my shermans 1 olivaceus and 3 oligos. Saved all of them. Total trap success =19 animals in 88 traps=22%; success for Oligo =4.5%. 4 Oligo, 2 Aulisco, 5 Abro longi, 8 Abro oliv. The olivaceus were all obviously intermediates with xanthorhinus, but none with yellow nose or orange feet. Note that this sample was not fat, was more advanced in breeding than the samples from Espejo and Ruca Malen. At 7 pm drove out past the flying field then a little past the slaughter house on the back road to Cerro Leones. Cool, windy, still lots of clouds, especially to the west. I set 36 Shermans and Anita set 36 Shermans. My line was the same as last year with Dick Sage, between the road and the fence on the north side of the road. Lush vegetation, not at all grazed. Lots of rosa mosqueta, with dried fruits attached, dense bunchgrass in places, neneo carpets in places, Berberis, Acaena, and the bromeliad-like plant with the teasel-like stalk (Eryngium). Anita set on the other side of the road; not as lush but lots of rosa, quite a bit of bunchgrass, some thistles, miner's lettuce, and the teasel-like plant. At 4 pm the max-min thermometer showed that during our week here the temp stayed between 46 and 60F. 10 November- some drizzle overnight. Sunny over the steppe at 6 a.m. but rainy at 8. Picked up traps at 7:30. 74 traps: 11 Abro longi, 1 Anro xantho, and 3 Oligoryzomys =20% trap success or 4% for Oligo. Am calling this location 2 km E of Aeroclub. Same locality as with Sage last December. Visited the Parques Delegacion Tecnica. Chehebar abd Ramilo were there and interested in my report. They had received news of a great number of mice at Lake Futulaufquen in Parque Alerces. Rain off and on all day; no sun. 11-15 November- Went to the Annual Meeting of the Argentine mammal society (SAREM) in Mendoza. About 125 registrants, mostly yougn people, many female. Neither the President (Reca) not the vice president (Barquez) were there. Roig was titular head, Ojeda ran things. Barquez has been fired from his job at