22, 1935 San Joaquin R., 3 mi. NE. Vernalis, San Joaquin Cr., Calif. October 19, Yesterday we found fresh gopher workings near the border of the river bottomlands. The soil here is of the sandy-loam type and a light tan in color. Vegetation in the area includes(1) a small annual which grows very low over the ground forming a dense mat and bearing fruiting bodies that are covered with small spines; (2) anthium = "bur-weed" with rootstocks slightly fleshy; cavadesne average height of plant 3 ft. We set out six gopher traps in the runways (which seem to run no deeper than 6 in. beneath the surface) of these workings. We examined the traps at 3 P.M. and found that one had been covered with dirt. It was reset; and at 5 P.M. we found degopher in this and another set. One of these specimens bears my collecting number (1489); the other, taken in a neighboring burrow, is being put up by D.H. Johnson (924 ?). I found a skyla along the shore of one of the many sloughs or ox-bow lakes found here. I set out 10 mouse traps and 30 rat traps last night. The rat traps were placed near wood rat nests, the mouse traps at intervals approx. 20 paces under oaks and willows for the main purpose of