Mustela viscosa June 8 Point Barrow, Alaska about with the lemming. The weasel then ran 2' to a second lemming that had just appeared around the end of the lumber pile, as if to seize it. The lemming had crouched and when the weasel was upon it, scurried off into the open with loud squealing and squealing accentuated by accelerated locomotion. Stopping 25' away the lemming crouched for a few seconds, and then wondered off up along a tractor track. The weasel had turned away when the lemming bolted and I could see no genuine attempt from the beginning toward seizing the lemming. The weasel turned to the dead lemming and dragged it out of sight. June 10 Frank Pitelka forced one out of a brown lemming burrow on the ridge. At one end of the burrow was a dead lemming and another inside was squealing. The weasel retreated about 20' to a large snow patch and a few minutes later it watched from a hole in it, about 60' out in the snow. We found several lemmings dead in the area, eaten at the back of the head and over the shoulders; likely they were victims of the weasel. June 16 One on route to Barrow #3 in turf thrown up by a bulldozer. Pitelka shot it when it peered out to watch us. June 17 Large (526) had scarcely any fat upon it.