Hooper, 1937 Berkeley, Alameda Co., Calif. much as a result of the recent freezing weather. This morning I found the following animals: 4 Reithrodontomya holicetes, 5 Mus musculus. One live harvested mouse was caught in a can live trap. The only other live trap found containing a specimen was a "can" trap— contained a field house mouse. The rest of the animals were captured in snap traps (got8. mouse traps). The water (rain) on the can traps was frozen this morning. Feb. 15, Trapped at the locality "Salt marshes, giant, Contra Costa Co., Calif. last night. In the Salicornia and sedge I set out 50 got8. mouse traps, 25 "Benson" live traps and 6 can live traps. These were placed for the most part on high ground above the high tide limit. Trails and small mammal signs are abundant here. When collecting my traps this morning at 8 PM. I saw at least three small mammals running under the grass. Some of the burrows, even up on the high ground, were still almost full of water, probably a remainder of the several recent, hard rains. The soil is still saturated even on gentle slopes. Last rain was