marmosa was very fat-tailed. It might have been too cold to catch many marmosa; surely that spring surrounded by bushes & linn 2 would be a good place for them, I could find no trace of guinea pigs. may 11 Baridolo, car being repaired. Sunny. Froze at night, may 12 Ice on mud shield. Dinner last night with Dallefjärn, Raig has accepted Directorship of the museum in B.A., he planning to support a corps of researchers ina CONICET. Sunny all day. Drove to the Genoy hanging bridge. 3 squashed shanes, (more than on previous trips). Saw 16 quareros at 10 km NNE Nahuel Huapi. may 13 Mornig clear, cold, windy. Left with Adrian morejón for Campo Anapo. Talked briefly with Don Juan, then looked at the life source and the girdle. all about nacre. Then drove to the Ensallo Bañada and put 11 cage traps at the two valley places for Phyleteo and Eumonyx, Roman, the priestero there, says he hears once at night but doesn't know where they coast. Then put 14 lines of traps at the NE corner of the INTA property. Adrian and I each put a line of 20 (alternatively Shannon and M3) in the Campo Fiestada, which hasn't been grazed for a year or more (Don Juan) and is probably the last-grazed part of INTA (Bonino), also lines of 20 each in the Campo Antiguero just across the fence. Bonino says basily grazed. It does look a little sparser, less tall Festuca. Both are essentially Stipa/mero with a smattering of Berrecio + adlema.