St. Albans, July 8 - 1922. Saturday. Spend the morning looking at the Senja slate and especially the banded zone. This place is on the farm, 3/4 mile to the southwest of Georgia Center. See my three samples. The Senja slate is a great thickness, estimated at 300 ft. It has the usual dark blue clay, is slightly sandy with very fine sand, and occasionally there is a stratum with the sand grains sand. There are also in places thin zones of sandy dolomitic beds. One goes pretty 30 to 40 feet thick and well developed banded structure. See the three samples. Fossils are absent, and probably chiefly because of the squeezed and slaty structure that is nearly always seen in the bedding. The Senja slate are easily separated from the Highgate slate in that the latter are harder, have their limestone beds, and the thickness is only 1/20 that of the Senja. I wonder if the banding is at all due to seasonal causes. I do not see the banding of glacial clay, that is always in pairs, a dark band and a lighter pound the thicker member of the pair.