Complaisánts, on board a vessel in the Mediterranean, xvi, 171.

Compression of water, xiii, 189.

Comptonite, a new species, iv, 28.

Conant, M., a new magnetic instrument, xlix, 301.f

Conchology, see [Zoology, Mollusca.]

Concretious, calcareous, in limestone, in Indiana, J. T. Plummer, xliv, 283.f

Condensation of gases, abstract of Faraday's experiments on, vii, 352.

— of sulphuretted hydrogen, vii, 352.

— of carbonic acid, vii, 354.

— of euchlorine, vii, 355.