Dinornis, notice of, G. A. Mantell, xlv, 184, 188.
—, —, and on the Ornithichnites, R. Owen, xlv, 185; xlviii, 194.
—, bearing of, on the subject of fossil footprints, xlviii, 199.
Dinotherium, R. Harlan, xli, 178.
Diophantine problems, solutions of two, T. Strong, xxxi, 156.
Dioptase, analysis of, Damour, xlvii, 216.
Dip, magnetic, daily variation in, M. Kupffer, xxv, 194.
—, —, in different regions, T. H. Perry, xlvii, 84.
—, —, at St. Petersburg, xxi, 382.
—, —, in the U. States, xl, 380.