— in the While Mountains, xx, 410.
— —, analysis of, x, 352.
Tornado, see under [Wind.]
Toronto picture gallery, xxvii, 178.
Torpedo, experiments on, Dr. Davy, xxv, 187.
—, electricity of, xxxii, 198.
—, new species of, D. H. Storer, xliv, 213; xlv, 165.f
Torpedoes of fulminating silver, i, 169.
Torrelite, J. Renwick, viii, 192.
— of Thomson identical with Columbite, J. D. Dana, xxxii, 149.f