—, perchloride of, xvi, 257.
—, compounds of, W. H. Ellet, xviii, 329.
—, sulphuret of, xix, 378.
—, remarks on, xlvii, 192.
Cyathocrinites pyriformis, xlviii, 314.f
D.
Daggett, H., on the cutting of steel by soft iron, vi, 336.
Daguerrotype process, Daguerre's, xxxvii, 374; xxxviii, 97.
— —, improvement in, F. A. P. Barnard, xli, 352.
— — and its applications, W. H. Goode, xl, 137.