(mildew?) on deck plants. No Tillandsia in blossom but many with plump green seed pods. Lots of trobes: foli, Burchina and rodent (mus, phyllotie, and larger). mus trobs incredibly abundant in places, especially near the dry wash spaceos where several "bunches" of flowering plants are in bloom or seed, with green leaves. Found a weathered rabbit mandible (sic) on the study area and a lizard and 3 geckos under surface objects just off of the study area. Our watered plot still clearly marked with corner stakes and raised rim, Burchina trobs and foli trobs across it, and big spider burrow just outside it. July 19 Temp at 7, (3) deg gamma. Up at 5:15 with gaslight and walked across area. Saw no geckos or spiders. Temp @ 8:25 14 1/2 deg; soil temp on S slope 3 deg 14 deg. 5" 14 deg. Tested soil moisture damp at various places, always more than 2 inches down, frequently 6 or 7 "; * Collected a little striped-wing fly on the area, always on pink flowering stolbe. driest places are under dead mate, where it is completely dry. Collected 2 geckos on the area, both under cardboard flown up from the road. Looked under numerous open tillandsia mats but no geckos there; one pair of old eggs however. At 10 am drove to the valley east of San Bartolo. Cloudy. road bed washed out at the last crossing of the dry wash, near where we had camped last year. The valley here is about 1/2 mile wide, boulder-stream bottom covered partly or completely by a series of mud flows, and thus cut by stream gullies; gulleys with occasional pebbier tree and