Koford 197 Cynomys lodovicianus July 25, 1955. Nr. Fairburn, Custer & S. Dak. (not numerous) on thin slopes. Carry on steeper slopes. Some art. fir. Dogs had worked up slope around field & spread over gentle slope stop steeper slopes. Barked humour on flatter upper terrace had small muds. Largest mds. near bottom, where apparently damper. But at edge barley field was Kochia (green), Polygonum, Eragrostis retroflexa, Cheno lepto, Portulaca (?), Salsola (green). Barley now dry, much standing still, apparently poor crop. Around mounds the Beta-Bgs turf dug out to 6' distance & 4" deep into soil at some sites. One broad ground grew Sphaer. soc., Salsola, Amaranth. blot. retrofli, Dys. pop., spring (= rostratum) Salicium (as CPER), Parnel. tin., Verb. bract., Salsola, applepoppier, Nab. hipp. Some Bout. curtisp. in pastures. Probably small ant mid-groves would keep below "good" pasturc cavities (5CS strips)-the ground seemed entirely cattarivious. Saw at least 10 sprectyts, 4 2 Lepus townsendi. Humberg C.L. here probably not over 2/A. || Barnes said that from about May 20 - June 20 juveniles. do not eat grain, so adults killed by poison but juveniles not, yet juveniles survive without adults. Some- times control work followed up by gassing humour with a gas/car tridge (chloropicrin?) dropped in 4 hole covered. Barnes said occur- sionally smoke comes out another hole or much as 75 yds. distant. || We used whole oats colored syllabum to poison C.L. Wellhol around carrying concoctions (stop on shoulder) with about 10 lbs. grain. Used special "spoon" that held about 2 tablespoons grain & tossed on ground near humour. No check off effect a follow up poisoning would be done here. || Harold Harsch told me of localities where C.L. in Mitchell-Neoson region, count of Missouri Ry where Forestburg (Dakota Co., 1930±), Netchrock (Brooke Co.), Ant- lesion (Dakota Co.), Delmont (Omi. SE), report this year, Kingburg Co.). This is sparsely run country.