Maclaurin 1969 Journal (20 June) precaution level. Saw a least weasel sticking his head out of a hole. After a hilarious (hysterical?) chase, in the middle of which I found a 4-egg phalarope nest, we succeeded in catching him. Drove to vicinity of traplines IV A-B to take soil samples. 8 duplicate samples of last year - flat north of the traplines- exacty. The other 8 from a low polygon through system ca. 100 m. west. Next drove across Vo th Crossing. Checked the 1-egg bairdii nest - still 1. Went on to collect a 7 melanotos, then returned to lab to process birds and put new samples in extractors. Spent the evening in Barrow at the Nalekatak. 21 June Barrow, Alaska again - in with the man haul, and to tbed for more sleep. Up to empty berlese catch; the polygon system was loaded! Drove out to check bairdii nests by line III B - still 3 eggs and apparently done. On to Gasline Ridge to find the 1-egg nest now empty. Returned the weasel and went out in to the drum area. Two bairdii nests, found by Tom Schwan with 3 eggs each yesterday, have 4 eggs today. Trapped and banded are adult from