Dec. 14 Considerable rain during the night; lots of water coming out of the Gorganta, but almost stopped by morning. My traps had about 3 mus, 1 Patton, and 6 Phyloto caprinos (including a couple of Andinocyp). Other lines had about 4 caprinos and/or andinocyps. Packed up soggy mess and drove to Tucuman. Camped outside of town on road to Ag. Stations. Dec. 15 No rain. Did 8 skins + chromosomes; then drove south and camped near the summit between Salinas and Sa merced. Very hot, even at night. Having mice dead of heat. Put out about 25 bag skimmers in dry thorn scrub - quebracho forest, lots of ants. Large yellow + blue + dark fays Dec. 16 Nothing in traps. Hot all night. No rain. Drove to Catamarca and Chumbilba. Arrived Chumbilba about 1pm. Very hot & humid. No place to stay and no enthusiasm to stay, so packed up meal and returned to Catamarca. Dec. 17 Catamarca. Doctor for ali etc. Very hot. Dec. 18 " Our room in hotel was 35° at midnight, about 32° outside the window; Dec. 19 Moved to Hosteria at La Concepcion, 3200 ft., 37 km SSW Catamarca. Still hot. Dec. 20 Native vegetation is thorn scrub and huge Opuntia trees, also lots of planted English walnut, olives, corn, shade trees etc. about 40 traps in dry wash behind the Hosteria caught 2 mus (goibys). still hot Dec. 21 Traps along the river and a few in thorn scrub caught one juvenile Grasscyps, nine steel traps and 6 museum specials in white-washed runways under thorn goat fences and containing