Table of results of experiments on Boyle's law, 27.
Tatum's lectures on natural philosophy, 240.
Telephone, Graham Bell's, 319.
Temperature, its nature, 33.
Thermometers first hermetically sealed, 2.
Thomson's, Professor James, application of the principle of
dissipation of energy to the freezing of water under pressure,
327.
Thomson's, Sir William, statement of the principle of dissipation of
energy, 327;
vortex theory of matter, 312;
mirror galvanometer, 313;
replenisher, 316.
Thunder-storms, Franklin's theory of, 81.
Torpedo, Cavendish's experiments on the, 140;
Davy's experiments on the, 251.
Traction of carriages, Rumford's experiments on, 189.
Trial plate used by Cavendish, 139.
Tyres, relative advantages of broad and narrow, 189.