Bead manufactory at Venice, xxvii, 78.

Beaufoy, M., notice of a work on nautical and hydraulic experiments, by, xxviii, 340.

Beaumont, W., experiments on the gastric juice, xxvi, 193; xxvii, 405.

Beaumont, E. de, observations on Etna, xxxi, 168.

Beaumontite from Baltimore, analysis of, M. A. Delesse, xlvii, 216.

— —, identical with Heulandite, F. Alger, xlvi, 233.f

—, a crenato-silicate of copper, xxxvii, 398; xlvii, 337.

Beche, H. F. de la, classification of the European rocks by, xviii, 26.

Beck, J. B., influence of salt storms on vegetation, i, 388.

Beck, L. C., contributions to the botany of Illinois and Missouri, x, 257; xi, 167; xiv, 112.