Koford 152 Cynomys ludovicianus June 21, 1955 Wind Cave N.P., S. Dakota. 50 yds. E. of where made put by farthest series burrow in May, South Slopes SW NE part, much Opales. All activity in area about 3 A. [sketch] Slope area use old burn Pines → IX small (5') pine → IV Slopes Sylvan town Rambin town This town excellent for study entire population as isolated Only towns in park that are doing well on the Sanctuary town (?). June 22, 1955 Niobrava G., Wyoming. Driving S. toward Lusk on highway 85, saw one big sandbile (under Mule Creek Junction) in region of Red Bird, N. Ft. Collins, Colo. June 24, 1955 Visited Spring Canyon Dam colony, Much green & grass taller than early this month. C. l. occupy about same area as before, 4 more of extreme border points (# 21, 29, 31, 24), appear out litter of 4 n 5 at # 32 & 25. No reseen near # 18 when a litter earlier, 4 no recent scratching there. Area N/4 of fence now has much Salsola to about 1 ft. tall. In NW 1/4 colony, many stalks of Parnel- sea have been cut. There 8-12" tall, cut a few inches from base. 3 of four long Parnelsa, but cross. stalk cut. In area of rather open stand Ag. sun., many culms & stalks & leaves, lying on ground. Standing glass show that many culms have been pulled out. Apparently some subtil tip taster, not cost aside. (Our pet "Whan" does this, witnessed at Wind Cave). Buckleb cannon in NW 1/4, now has heads. Bant. gro. also headed & about 8" tall seed stalks. Loppula present but now. On wounded green Salsola, Aphaneslea, & a purple-flowered Salicium mainly. Much Ag. sun. in area # 2 & 21, where apparently little C. l. activity now (10-12" tall, no sheds yet). Near # 22 (where a C. l. seen), mildly