Egyptian crania, observations on, S. G. Morton, xlviii, 268.

Ehrenberg, C. G., on recent and fossil infusoria, xxxiii, 111; xxxv, 371f; xxxvii, 116.

—, ibid, American, distribution, extent and influence of, xliii, 393; xlvi, 297.f

—, —, —, in Virginia, xlvi, 300; xlviii, 201.

—, —, —, in New York, at West Point, xlvi, 303.

—, —, at Berlin, xlii, 388.

—, —, general results of researches on, xlvii, 208.

— and Hemprich, journey in northern Africa, vii, 195.

Elaine from oils, new mode of obtaining, M. Pechet, ix, 189.

—, separation of, from oils, xiii, 186.