420

CATALOGUE.

ELECTRICITY.

Mazeas on the electricity of the air. Ph. tr.1753.377.

Ammersiu de electricilate lignorum. 24.Lucern. 1754.

Delaval on electricity. Ph. tr. 1759- 83.Dolaval on the effects of heat. Ph. tr. 1701.353.

f Wilson and Bergman on the permeabilityof glass. Ph.tr. 1760. 890,907.

Canton on Delaval’s experiments. Ph. tr.1702. 457-

Ascribes the increase of conducting power to moisturerather than to cold.

Kiunersley’s experiments. Ph. tr. 1703. 84.fKinnersley on the conducting power ofcharcoal. Ph. tr. 1773. 38.

A line drawn by a black lead pencil conducts.

Leroy on the transmission of the spark underdifferent circumstances. A. P. 1760.451.

Priestley on the conducting power of char-coal. Ph. tr. 1770. 'ill.

Cotte. A. P. 1772. i. II. l6.

Snow serves as a conductor in storms.

Henley’s experiments. Ph.tr. 1774. 389.

Shows that vapour is a conductor, and that an imperfect»acuum conducts.

Henley on the impermeability of glass. Ph.

tr. 1778. 1049.

Cavendish. Ph.tr. 1776.

Iron wire conducts 400 million times better than purewater; sea water, with one thirtieth of salt, loo timesbetter; a saturated solution of salt 720 times bettcF.

Achard on the electricity of ice. Itoz. VIII,304.

Achard on the celerity of electrization. A.Bcrl. 1777-25.

Achard on the analogy of conductors ofheat and of electricity. A. Bcrl. 1779. 27.Itoz. XXII. 245.

With an instrument for measuring the conducting power.Achard on the distinction of conductors andelectrics. Jtoz. XV. 117.

Achard Schriften. 246.

Bergman on the conducting power of water.

Roz. XIV. 192.

C’avallo. Ph.tr. 1783. 495.

Pith balls electrified did not diverge in the vacuum of anair pump, whether much or little electricity was commu-nicated to them. Pei haps from the perfection of the con-ductor.

Cavallo on a vacuum. Electr. ed. 4. part 4.

c. 8.

Lavoisier and Laplace on the electricityabsorbed by vapours. A. P. 1781. 292.11 . 6 .

Coulomb on the loss of electricity in a giventime. A. P. 1785. 612.

Morgan on a vacuum. Ph. tr. 1785. 272.

When the mercury has been boiled for some hours in agage, neither light nor charge can be procured in it. Airconducts best when the light streaming through it isbluish violet. Acids conduct better than water, and hotwater than cold.

Vassalli and Zimmerman’s experiments onwater and ice. Soc. Ital. IV. 264.

Eandi. M. Tur. 1790. V. 7.

Says that light may be seen in the dark, even when thevacuum is perfect. But it may be said that some mercurialvhpour is present.

Volta on the use of the electrometer in hy-grometry. Soc. Ital. V. 551.

Volta. Gilb. XIV. 257.

Says that wire conducts a million times better than water."Repeats some of Cavendish’s experiments.

Tremery on conductors of electricity, andon the emission of the electric fluid. B.Soc. Phil. n. 19. Jouru. Pltys. XLY1II.168.

Bressy on the electricity of water. Gilb. I.375.

Wood on the permeability of glass. Ph. M.II. 147-

Heller on the conducting power of \yater.Gilb. VI. 249.