Sullivan J. 1961 Barrow Alaska Lemmus trimucronatus and Ibroairk lake. I spotted it swimming through a flooded patch of tundra. It was turned over to Mullen. June 21 The captive lemming began to hunch up and sit quietly in a corner of the cage at 11 A.M. It did not respond to rattling the wire mesh above it. At 1300 the lemming was dead - Mullen received it. June 27 0940 While watching a flock of oldsquaw on a lake between beach and gasoline ridges, I noticed a lemming running along. It popped out of sight. I ran to the spot and found a burrow leading into an elevated piece of ground. I tore into it and found the lemming - a pregnant & within. She ran for the outside but was captured and given to Mullen. The next chamber was like this: View from above 1430 Mullen and I captured another pregnant & lemming. This one also ran into a hole, but was flushed as we began to dig into it. July 10 Saw 2 lemmings at Pitt Point - about 700 and 500 Pitt Point yard west of the 2 oil tanks nearer the station. Marked and released one - 0000 adult or. Followed