—, —, produced by pressure, D. Brewster, xxi, 296.
—, —, cause of, in crystals, D. Brewster, xxi, 296.
— of heat, xxviii, 366.
Refractive indices, theoretical computation of, B. Powell, xlii, 160.
— —, B. Powell on, xxxviii, 107.
— power of minute bodies, and its application to mineralogy, A. Bryson, xli, 54.
Refrigerating compound, see [Cold.]
Regents of the University of New York, Report of, xxii, 415; xxv, 258f; xxvii, 177; xxx, 389; xlix, 176.
Regnault, V., analysis of lithia mica, xxxvii, 356.
—, researches on the dilatation of gases, notice of, xliv, 63.