Bartlett, W. H. C., experiments on the expansion and contraction of building stones by changes of temperature, xxii, 136.f
Bartram, Wm., notice of, A. Gray, xlii, 1.
Baryta, test for, iv, 372.
—, distinguished from strontia by means of chromate of potash, J. L. Smith, xxxvi, 183.
—, native carbonate of, see [Witherite.]
—, native sulphate of, see [Heavy spar.]
Basalt, analyses of, iv, 230.
—, characters of, xv, 32.
—, of the Caucasus range, xxxvii, 348.
Basaltic columns, in N. Jersey, v, 240.