July 16. Up early - still some fog but sun trying to break through. Out at 8:30 to "west ridge" of Twin mountains just south of camp & worked on north face slowly and carefully, since main inventory job is completed. Found Areas with fruit, a Tangoria and Thriindrin, all of interest. Sun finally came out, but fog replaced by heavy Cumulus and occasional showers. In for lunch just after 2:50 & to avoid heavy rain from approaching cloud. After lunch Took a few photographs between rains & began to pack. Heard phone about 6:00 - Bob Murphy had been taking