Thermo-multiplier, Nobili and Melloni, xxii, 370; xxiii, 185.
—, effects of, M. Melloni, xxiii, 381.
Thermometer, when invented, ii, 359.
—, theory of the construction of, J. Adams, viii, 121.
—, a new mode of graduating, Skene, xii, 397.
—, American manufactures of, vi, 371.
—, employed in finding the heights of mountains, xliv, 12.
—, or apparatus for measuring the expansion of solid bodies, W. W. Mather, xxx, 324.f
—, differential, W. Howard, ii, 327.f
Thermometric observations on solar and terrestrial radiation, at Montreal, 1838, J. S. McCord, xxxvi, 180, 182.