Koford Cynomys ludovicianus August 20,1955. Nr.Ft. Colling, Glo. to NW (old burrows) (Salo. 4 gram taller in gail there, but no obvious compor. diff from occupied area). Aam without seed stolbs (not produced apparently), but Bgq & Bda douc. E. Opuntia, mammilara, Eryngium pret. //I took step-loop density N. to S. for 240 pts. On burin 100pts., result: Bda 38, Sheo 15, Aam 2 1/4, Faba 2; total 57. In cited area (100pts) Bda ran about 50%. // Visited Sec. 3 colony, lone pasture 1 mi. S. of dumpa. Weed growth, Sheo superciliously, made scent- ring difficult. Liatris in bloom (purple), 4 on nitrite two beside of: Solenum. 1/4" tall Euph. marg. in low wet spots & on bank of irrigation ditch upslope from census area. // at W. 1/3 of census area, Sheo scant (tall in open stand, much burrow repair, fresh cut tengo Sheo (old of Chrysothamnum). Little gram (Bda 1/4" tall, thin, in patches, doing poorly). On mds. Sheo mainly, but some Spharal- cea, Aman. Vlataidea. Sol. triff. & Dyp. pap., present. Much Aam in wet lawn (downslope & ditch) parts. Bda still present but not theek a dominant. Found dead & dried givivile. // In central area, estimated 75% bare, but Bda., Sheo present, & a few small patches Bgq. (Mud in bottom dammed area). Two burrows stop W. half of earth dam (4" thick). Aam in wetter silt, & Dyp. pap., Dist. striata, Euph. (guyei?), Spharalcea, Astragalus, Bolaia, Sol. triff. Soil is clay. Upslope, Aam present but sparse; single stemmed; no seed stolbs. Vigorous growth Sheo 4 other weeks (Dpa, 50b, Cup. marg., SALVIA, ASclepias) on uphill edge slope solo on lower barrel irrigation ditch; & much cutting of vigorous dark green Sheo here. Water in ditch. // S. 1/3 of census area has much Sheo, Bda, also Bolaia, Dypa; small patches Bgq & Bda (thin, "tall"). I found much (purple flamed) Solanum. // I took step-point density along