Roford. Cynomy s lodovicianus August 31, Sept 4, 1955 Nr. Cache, OKla, 16". silt loam of tan color. Some erotion to 1/4" tall, 6' or more. Near a west bottom Cypah. mang. 2'-3' tall & not set, associated stones; Under mosquito some sticks incorporated into burrows - 1/2" diam + 1' long common (probably fallen sticks scrapelonts etc.), Now one Leprez calif. Some rounded mds. 8' across 4-6" high around base of 3-4 small thunders together, each 3-4" diam. Many mounts had 6' radius area around, worked, bare of vegetation. September 1, 1955 Took block & white photo. Official colony, Cabin-all on study area at Bruce Mtn. flat. Counted bugs at official colony 8 a.m. of clear fine day. With fewer dots, got count of 206. Estimate 2.25 ± 70. At official colony, rare on fields in area Andropogon dominans. Some burnt area in area that grazed Andropogon, where range condition "high good" as based on composition. Four C.L. seen outside fence - betas, fence & paved road; retreated thin fence, climbing over bottom rows of loganite. Especially just E. of E. fence, some burrows (4-5 feet deep) surrounded by 50' n + of Aristida, 8" tall (Flos Ambrosii, night). On mds, principal plants Amm. Albit, Polyg., Ambrosia ptile. N.W. section, N. of fence, had adjoint Bess culms apparently pulled out (prob. by C.L.). The N. part of W. arm has ring and Beta, about 40 x 50 yds.; only 2 C.L. seen thus; 14 used appearing burrows. Counts at Official Tamer: Grass up to 5' tall at single burrows. [illegible] 12 51 450 24 7 8 9 Brought in. flat - C. Brennert Believes more used since 1946 than before. Heavily overgrazed cabit. 1936-38. High rainfall '44-'45 may have been deleterious to colony or be responsible for condition Cabin-all observed. / Arthur Halloran, biologist, has since last August. He