Julhoi 1949 Peromyscus maniculatus - 1 Aug 20 French Camp, 3100 ft., Humboldt Co., Calif. - 9 animals taken in 25 traps set in open meadow, under bracken fern, in juncus, by rocks with tunnels under them and under tan oaks lithocarpus densiflora. Aug 23 same locality - 13 very brown animals taken at scattered points along the trap line ging down hill from camp (see journal p.148). Unds such diverse habitats as Incense Cedar, scrub Tan Oak, small Douglas Fir's poison oak covered rock outcroppings, under a burned log, and along a small stream lined by maiden-hair fern and moss covered rocks. Aug 24 same locality - 1 [progeny?] sub-adult taken under 2 isolated Incense Cedars, surrounded by barren ground. - 1 brownish adult taken in a opening, about 8 feet from the nearest tree - an incense cedar. Some broken fern within 2 & 1 foot of trap, also very little grass cover. rocky soil. 1 gray-brown mouse taken among dead branch tangle under a 3 foot-very thick-young douglas Fir - also some broken ferns in the tangle. 1 gray-mottling to brown-sub adult taken by tail at based small fir snag, a few 15 inch high Doug Firs scattered about 18 inches apart but other wise ground quite