it form by their spring, with meadow hay for body, and the reddish woolly material which invests the ferns in the spring, apparently, for lining.
Nov. 9, 1852. Ranunculus repens, Bidens connata, flat in a brook, yarrow, dandelion, autumnal dandelion, tansy, Aster undulatus, etc. A late three-ribbed golden-rod, with large serratures in the middle of the narrow leaves, ten or twelve rays, Potentilla argentea. Early part of November, time for walnutting.
Nov. 9, 1853. p. m. To Fair Haven Hill by boat with W. E. C. The muskrats have added a new story to their houses since the last flood which covered them, I mean that of October 31st, or thereabouts. They are uncommonly high, I think full four feet by five or more in diameter, a heaping cart-load. There are at least eight such within half a mile. It is remarkable how little effect the waves have on them, while a heap of manure or a haycock would be washed away or undermined at once. I opened one. It was composed of coarse grass, pontederia stems, etc., not altogether in mouthfuls. This was three and a half feet above water, others quite four. After taking off a foot, I came to the chamber. It was a regularly formed oval or elliptical chamber, about eighteen inches the longest way, and seven or
