—, analysis of the alluvium of the Nile, xl, 190.
—, rhombic structure of Connecticut sandstone, xli, 173.
—, soil of the Nile, xli, 160.
—, a daguerrotype experiment by galvanic light, xliii, 185.
—, use of carbon in Grove's battery, xliii, 393.
—, account of a carbon battery, xliv, 180.f
—, scratches on rocks of Connecticut, xlv, 333.
—, review of Dana's Mineralogy, xlvi, 362.f
—, analysis of Haydenite, xlvi, 379.
—, on meteoric iron from Otsego Co., N. Y., xlvi, 401.