[147] See _Le Feu élémentaire_ of l’Abbé Nollet; Leçons de Physique, tom. vi. p. 252; _Du Pouvoir thermo-électrique_, by M. Becquerel--Annales de Chimie, vol. xli. p. 353; also a Memoir by Nobili, Bibliothèque Universelle, vol. xxxvii. p. 15; _Experimental Contributions towards the theory of Thermo-Electricity_ by Mr. J. Prideaux--Philosophical Magazine, vol. iii., Third Series; _On the Thermo-Magnetism of Homogeneous Bodies, with illustrative experiments_, by Mr. William Sturgeon--Philosophical Magazine, vol. x. p. 1-116, New Series. Botto made magnets and obtained chemical decomposition. Antinori produced the spark. Mr. Watkins heated a wire in Harris’s Thermo-Electrometer. [148] A very ingenious application of the knowledge of this fact was suggested by Mr. Solly, by which the heat of a furnace could be constantly registered at a very considerable distance from it. See _Description of an Electric Thermometer_: by E. Solly, Jun., Esq. Philosophical Magazine, vol. xx. p. 391. New Series. [149] Humboldt; _Personal Narrative_, Chap. xvii.--Annales de Chimie, vol. xiv. p. 15. [150] _Experimental Researches on Electricity._ Series xv. Consult Sir Humphry Davy: _An Account of some Experiments on the Torpedo_.--Philosophical Transactions, 1829, p. 15. John Davy, M.D., F.R.S.: _An Account of some Experiments and Observations on the Torpedo_, ibid., 1832, p. 259; and the same author’s _Observations on the Torpedo, with an Account of some Additional Experiments on its Electricity_; and Matteucci, Bibliothèque Universelle, 1837, vol. xii. p. 174. [151] _On Lightning Conductors_, by Sir William Snow Harris; _Observations on the Action of Lightning Conductors_, by W. Snow Harris, Esq., F.R.S.--London Electrical Society’s Transactions. Numerous valuable papers _On Electricity_, by Sir William Harris, will be found in the Philosophical Transactions. [152] Adopting, to a certain extent, this view, Faraday, in his _Electrical Nomenclature_, proposed for the word pole to substitute _anode_ (ανω, _upwards_, and ὁδος, _a way_), the way which the sun rises; and _cathode_ (κατα, _downwards_, and ὁδος, _a way_), the way which the sun sets. The hypothesis belongs essentially to Ampère. _Objections to the Theories severally of Franklin, Dufay, and Ampère, with an Effort to Explain Electrical Phenomena by Statical or Undulatory Polarisation_, by Robert Hare, M.D., Pennsylvania, will well repay an attentive perusal.