JOURNAL October 18.- Bariloche. Tulips blooming, a few fruit trees blooming. Lots of snow on the mountains. Went to a S.N.A.P. meeting in the evening: a lecture by German Prof. Hermann Ellenberg on Capreolus deer. Michael translated, Betinellis, Lawrence Sympson, Fluecks, Ramilo, Chehebar, Bellatis, and Gustavo Iglesias were there. October 19- Left Bariloche about 2:30 and drove to the two bamboo clumps at La Veranada. The road is enormously wide but still unpaved; no way to get off of it anywhere near our bamboo and mouse study area. Photographed E3 and E2, and samples of branches of different known age from E3. The nire is not at all in leaf yet, nor the lenga. Excavated some rhizomes next to E2. Day mostly sunny but filtered. Drove over the pass and down to Pampa de Toros, then back the Lago Steffen road to camp in a meadow. Evening clear, no wind. Put the propane lantern and a sheet in a nire grove with bamboo, but absolutely nothing came to it. October 20.- Night started out clear, then clouded over. Frost. Drove back up to the Veranada bamboo plants and dug rhizomes and photoed rhizomes with known-age culms; looks as if production of culms is every other year, and the culm and its rhizome grow at the same time. Even dead shoots nly a foot tall can have a sizeable rhizome, hence the long-term effect of a parasite killing a rhizome is not great because the rhizome has grown and will produce more shoots in the future. There were numerous earth cores lying on the turf, too small to be from tuco-tucos, a bit small for Chelems and too large for Geoxus. Stopped at the south end of Lago Guillermo on the way home. A few dandelions blooming, a few calafate bushes in full bloom. Home about 3 p.m. altitudes: Pampa del Toro 3180 ft, Pass 3600, La Veranada bamboo 3530, apartment 2720 ft. October 21- Bariloche. Visits from Blida Bettinelli: spring is late this year; Michael Christie: there was rain out into the steppe, and Lago de los Juncos is partly full; Adrian Monjeau with birthday cake: 200 trap nights on Isla Huemul in Lake Nahuel Huapi caught only Rattus norvegicus. Read leaves from La Veranada bamboo. October 22- Drove out to Llao Llao Peninsula and visited our two bamboo patches there. No new shoots yet. More than half last year's shoots were parasitized. Dug rhizomes, photoed clump B1. Saw quintral in bloom. October 23- Went trapping with Adrian Monjeau and his student Nadia Gutmann at their 1-hectare grid on Estancia Condor on the road to the airport. Mostly bunchgrass with scattered rosa mosqueta, some Acaena etc. Some old tuco tuco activity on the grid. They use 10m spacing, check traps once per 24 hrs., 4 days of trapping each month. Day was sunny warm, no wind. The catch was