—, on crystallized steatite, and ores of iron and manganese, v, 249.
—, hydrargillite, iii, 239.
—, Wavellite, from Richmond, Mass., ii, 249; iii, 239.
—, analyses of argentine and crystallized steatite, vi, 333.
—, mineralogy and geology of Williamstown, Mass., i, 337.
—, geology and mineralogy of part of Massachusetts, and some portions of the adjoining states, viii, 1f, 240.
—, geological section from Taconick range in Williamstown, to Troy, ii, 246.
—, notice of the flexible or elastic marble of Berkshire Co., Mass., ix, 241.
—, on the polished limestone of Rochester, xxxvii, 240.
—, striæ and furrows of the polished rocks of western N. York, xliv, 146.