Lemmus trimucronatus 8-20 June Barrow sequence at Barrow, as well as at Wain- wright, about the middle of October. This was accompanied by heavy rains for a period of about 1 week, according to Pete Squalek, and this unusual weather may have been responsible for a major kill among the lemmings. We do not yet know over what area this October thaw and rain occurred - we hope to get weather records from all the devolice sites - but it may have been quite extensive and may have equalized lemming popu- lations at a low density virtually all over the Arctic Slope. On the flight with Maher and Shyniks on 18 June, heavily grazed vegetation with lemming runways in the cuttings was common all the way along the cost from Scott Point into Barrow. Maher found evidence of lemmings along the blaves in some shrubbery during the winter, but not as much as right around Barrow. Another interesting point is that a large percent of the winter nests have the remains of dead lemmings in them. In some cases there are whole carcasses, but