Roford 198 Cynomys ludovicianus August 30, 1955 Wichita Mtns. W.R., Nr. Cache, Oklahoma, dam + pond, 4 shallow streambed. Much of C.l. plot of same slope & aspect but not occupied, having Buntingia. Do this a barrier to C.l. movement northward? No signs of cutting but the B grown seedstalks cut nearly, (Asa, Age, Asa) Andropogon & Bout. centip. common in profiled tract. area. In peripheral zone of Bde no apparently much used a well-wounded burrows. Nearly all burrows among mesquite or within 20 yards of it. Antida at edge some miles, 4-3-leaved prostate (fall (?); Plantago & bunch Eryngium (?) also not to bore areas. Some Phlebidi on abandoned mica. No obvious use burrows within 100' of edge of Bde zone, the same old burrows to 15 yds. from but. zone. Do Cynomys eat seeds or seedlings Buntingia? - much of it near under mesquite where no C.l. No mesquite young trees, except 6" high, in C.l. area here meanwhile (due grazing or C.l.?). August 31, 1955 Visited reputed mine along NE of Brana Lake (see p. 187 map), about 200 yds. leaning 12.8" from windmill, a dead mesquite with 5yd. dam. area Bde, very shot, around it. 3 burrows in this clearing. Perhaps made this year but not currently used. Apparent C.l. droppings next tree. Clearly located by tall Andropogon and Androp. sacc. 11 Grace Mtn. town. Area B, shown in Col ogy 30: 224, 1949, rim where car trail crosses bottom. Muddy water holes & heavy stock use of this bottom. Other wallower + a few mesquite trees included. On W. side bottom, 50 yds. up slope, depression apparently indicate old burrows. 2' Here Androp. sacc. dominant, 1' tall seedstalks. Mixed with edge, jumpy Ery- gronia, Chloris, Androp., Bout. cent. When flattin, nearer bottom, partly closely grazed. Same plants + Age & Bar. Asa. Moderate Brundelia, areas of Bde, occas., witchgrass (?), woody fab. This has much Bde now & still rather open. Mean bottom near Bde, + Asa, tall dropped (?) their. Probably much advanc- ed in succession since C.l. present. Jean Mather, SCS, Lawton, went our ground here with me. He thought area B had much more tall grasses on it than in