Neffenester 1939 Itinerary N.E. edge Alkali Lake, 4200 ft., Lake Co., Oregon quarter inch hard, dry crust covering. This spot is between 12 and 15 miles (no exact speedometer reading taken) by highway south of Wagontue P.O. Set traps between 20 and 25 yards apart in the edge of the lake bed along the sand banks, and also across some of the drier alkali flats. Caught 23 specimens, 11 Peromyscus maniculatus (8?, 3?), 5 Microsipodops megacephalus (2?, 2?), 7 Dipodomys ordii (3?, 4?). There is an abundance of visible openings all over the sandy areas of the flats. The sand and hardened alkali sand areas are covered sparsely with greasewood, being denser on sandy, slightly elevated ridges. Aug. 1 2 mi. E Vinton, Plumas Co., California Broke camp yesterday about 11 A.M. and drove south via U.S. Highway 395 and Caly. Highway 24 to this locality, stopping for lunch at Alturas. From Alturas south to Honey Lake, the country was wet from earlier thunder showers. Arrived at this locality and set out 40 museum special traps by full-moonlight. The spot is just off the highway, along the Western Pacific Railroad right-away, and the country is in the Sierra Valley, covered with Artemisia, greasewood, and an