7. Cade 1958 Lemmus trimicroratus 5-26 June Coal Mine - Meade River is evident around Barrow from the air. There is very little fresh microtine sign around the area covered by our trapsets. Of 8 winter nests which I have found, 3 contained the chewed exp. remains of Lemmus. One held 3 skulls. These nests were all located either in the troughs of polygonal gravel or along the banks of streams at the interface between the willow zone and the zone of grass and ridge meant to the north. Some of the nests may have been 2 years old. In an area ca 1/2 mi S of camp I found a low mound on a gentle slope plunging down into meadow ground. The mound was about 3 sq. yards in area and was vegetated predominantly with Poa. Two winter nests were in this area, and all the growth from last year had been cut. There were fresh looking rem wrap and 2 fresh-looking holes. The surrounding gravel on the slope was a knoll of "barnes" with lichens and Corisope as dominants - with a scattering of sedges and forbs. 27 June Coal Mine - Meade River - an area of extensive lemming cutting (winter) with a good number