A.C. Ziegler 1957 Siomoon HISPAUS June 16 & 17 Meras Co. State Park, Meras Co., Kansas Set mus spee's & rat traps in marshy & also some dry areas with 2 ft. hi vegetation. Caught 3 young in hand at hour (4:30 -5:00 pm), got an adult ♀ & 5 more young. In morning Got 3 more young (also 3 Peromyscus +1Mus) Many traps were springing -- probably by the adult cotton rats which were not killed by them. Dr. Quay, who live nears got 3 adults & some young but no other species in same type of habitat. We found a few runs made by geas [illegible] and these with zero geas fruiting heads along them but none of runs looked as worn as a well-used microtus run. Also no "dappings seen along these runs. Make small quantities of cut geas stems threads were seen in more open vegetation (geas & some kind of broad leeco plant - timsonweed or marigold "sunflower") but traps set here were unisprung except for 1 Peromyscus, the cotton rats were confinced, as presently, to relatively small areas -- slightly damp & with thick, tall geas. Even with the large # of them the damage to geas & other proviwus was not noticeable. The adult ♀ had 8 25 mm cm's. Rat traps or live traps are needed to catch the adults.