Sept. 13 New Columbia Ranch, T13S, R15E, Madera Co., Calif. +14 John Lawrence caught 1 mm. in mus. speer in trap on walnuts along open dry levee-top road beside slough (# 344 A.C. closer to see exact location), traps were set between 1 and 2 am sept 14 & were run about 8 am. Moon set at 1:40 am. Trap that caught this rat was set in high over furrow an inch deep. 50+ traps within a quarter mile here gave only 1 other animal - a Peromyscus monicurus. Many lepus calif. seen along this street. Drove roads from dark (8:00pm 'til 4:30 am) but saw no dipos 'til moon had almost set at about 1:30 am. Then we saw 15 or 20 along a highway (bordered with open range land spotted with a few shrubs) and along a mile stretch of roads among the slough [illegible] miles north of where Dipo above was caught. They would run along in car lights & into bushes but must have gone into holes or keaton running then tho, cause when we went after them with net & flash light they just weren't there. In Carran Hollow, San Joaquin Co., we had good luck getting a dip. However, like this southern months before, none of these Dipo