Koford 177 Cynomys ludovicianus July 11, 1955 Wind Cave N.P., S. Dakota. He dug at depression in an old mound, where hole not available, & was out of sight 2 min. later. Digs with 6-7 strong alternate strokes firepaws, then shoves soil back with 4-5 strong strokes of hindfeet. Sometimes pushed a carried root out molded in fore- arms. When tired in pine-meadle area on hot day, he dug a depression & lay in it, as if to keep cool. When hears other C.L. do jump-back, he stands high on hindfeet, but does not answer. He does jump-back when someone comes after a long absence, as if for a greeting or sign of recognition. His right seems poor, for often he must touch a morsel of food before finding it (in house, when somebot dead). Can climb-wire, as of rope, but not sure footed at height, for when on table or shoulder he often falls off & thumps to floor. When hot he drinks water from dish a puddle. July 12, 1955 Les allee told me that near Ludlow, S. Dale. (Nw. N. Dale line), was prairie dog town having albivo dogs (Ralph Joslin, owner, Lewis 3 mi. S., 1 mi. E. of town). With Les allee visited several towns. Rankin town, allee thinks C.L. has little effect in re- lation presence a absence of Artemisia frigida, as more than half of plants left by C.L. Of weeds present: a Salicaceae with ½" chain, queen's-tomato common, Astragalus crassicarpus present, Hedeoma very common (also on Shirttail Wash, & Rankin), Verbena brotiosa common (seedsling thick; plant large on C.L. nobs, Act. friq. usually in driest overgrazing; indicates dry shallow soil. "Decrease" in cattle grazing. At edges, Act. friq. disappears, Andropogon's some in (dry blustern spreads by rootstolers, little C.L. not). Now herd 400 bisns