Pearson - 1994 7 a little west of the Bagual turnoff (km 611). The mounds are 1 to 2 m high, and maybe 25 m across, in grassland, with sheep, but not plowed. There were old tuco diggings on the road shoulder, but I could see none on the mounds , which were beyond the fence. Also, I could detect no hardpan or rocky layer within the top 2 or 3 feet. Lunched back a side road with Lagostomus burrows, possibly active. Camped back a side road a few km west of Union (Km 644). Mostly grass and weeds, only a few thorn trees, not plowed. We seem to have gotten out of the cultivated area. Looks like Custer's-Last-Stand country. The road from Mercedes to Buena Esperanza is farmed but empty. Must be 4 hours with no gas station, no store. Then 3 or 4 hours more to the next town. Anita put out 10 Shermans in grassy weedy habitat along a fence, and I put out 12 in similar habitat; fairly dense cover. November 14- Clouded up in early morning, then lightning. Nothing in traps. Then rain just after we got onto the road. A suashed Pichiy armadillo at Km 660. At the Rio Salado (Mendoza- San Luis border) the vegetation changes abruptly from Custer open country to scrub (Larrea, cactus, bushes with woolley caterpillars), but then becomes vinyards etc from General Alvear to San Rafael. Lunch in San Rafael, then out to the Museum in the afternoon where we visited with Humberto Lagiglia, Gustavo Neme, and another man (Adolfo Gil?). Neme wants his specimens returned after I have finished identifying them. Julio Betancourt had participated in a Curso and Symposium in September-early October, with papers on amberat etc. A Jorge Fernandez gave two reports on radiocarbon chronology etc. of Octodontomys, which Liz Barnosky might be interested in. They are a packrat analog. I think Lagiglia does not have a reprint of Christie and my paper on amberat; send him one. He loaded us with reprints from his Museum. They had a copy of the publication containing Pearson and Pearson on the small-mammal fauna of Cueva Traful and offered to xerox it for us, but Pardinas reports that he is sending us a copy. It is in Volume 1 Number 1 of Palaeohistoria.