—, crystallographic examination of, J. D. Dana, xxxiii, 70.f
—, identical with monazite, J. D. Dana, xlv, 402.f
Ergot of rye, W. Tully, M. D., ii, 45.
—, remarks on, xii, 398.
—, on the origin of, M. Field, ix, 359.
Erie canal, tolls on, x, 398.
Erratic blocks, over the northern parts of England, Prof. Phillips, xxxi, 360.
— —, ibid, R. I. Murchison, xxxi, 375.
— — and glaciers in Switzerland, Agassiz, xli, 59, 190.
— — of the North of Germany, xxviii, 389.