—, list of men of science who have held offices under governments, xx, 172.
—, number of members of some societies, xx, 173.
—, calculating machine and constants of, xxviii, 64.
—, analytical engine of, xlvi, 205.
Babel, tower of, xxxvii, 352.
Bache, A. D., safety apparatus for steamboats, xx, 317.f
—, disturbance of the needle during the aurora borealis, xxvii, 113.f
—, on the meteors of Nov. 13, 1833 and 1834, xxix, 383.
—, influence of color on radiation, xxx, 16.
—, radiation and absorption of heat, specific heat, and apparatus for illustrating, xxviii, 320.f