E.M.Brock 1958 June 10 Wainwright, Alaska The only mammal caught today was one Dicrostonyx at stake 5.2 in transect I June 30 Atkasuk, Mead River Coal Mine, Alaska Two Dicrostonyx caught at transect II in today's check. The first was taken in a trap set in a trough made by an old frost crack. Immediate area very snowy, berry bushes, Ledum, some willow, lichens, no tursocks and very little Eriophorum. This was at stake 4.2 The other at stake 7.6 was trapped in a very mossy area in a polygon trough which was relatively dry. Many tall (10") willows and tall (10") grasses, some Cassiope and some berry bushes. July 1 A subadult male Dicrostonyx was taken in a trap at stake 7.8 in transect III. The entire trapline looks like good Dicrostonyx habitat with many troughs, willow and berry bushes. Once again this individual also was not trapped near any runway. Aug 18 Wainwright, Alaska After four days of trapping with 600+ traps for Dicrostonyx have been taken but not a single Lemmus.