has been covered again, though not yet raised so high as before. I counted nineteen between Hubbard bathing place and Hubbard's further wood, this side the Hallowell place, from two to four feet high. I opened one. The floor of the chamber was two feet or more beneath the top, and one foot above the water. It was quite warm from the recent presence of the inhabitants.
Nov. 11, 1854. Minott heard geese go over night before last about 8 p. m. Therien, too, heard them "yelling like anything" over Walden, where he is cutting, the same evening.
Nov. 11, 1855. p. m. Up Assabet. The bricks of which the muskrat builds his house are little masses or wads of the dead weedy rubbish on the muddy bottom which it probably takes up with its mouth. It consists of various kinds of weeds, now confervæ by the slime, agglutinated and dried converbal threads, utricularia, hornwort, etc.,—a streaming, tuft-like wad. The building of these cabins appears to be coincident with the commencement of their clam diet, for now their vegetable food, excepting roots, is cut off. I see many small collections of shells already left along the river's brink. Thither they resort with their clam, to open and eat it. But if it is the edge of a meadow which is being overflowed, they must raise it, and make a permanent dry stool there, for they cannot
