Teeth, phosphate of lime in, xxviii, 386.
—, R. Owen on fossil, xxxv, 307; xxxviii, 127.
—, on the microscopic structure of, xxxviii, 134.
— of the Lepidostei, on the microscopic structure of, J. Wyman, xlv, 359.f
— of shark, New Jersey, fossil, xxviii, 378.f
—, see farther under [Fossil.]
Telegraph, Pearson's, iv, 314.f
—, system for the United States, proposed, xxxii, 201.
—, Morse's electro-magnetic, xxxiii, 185.f
—, — —, experiments with, xlv, 390.f