In the article of Auguste Guérout, which appeared in La Lumière Electrique early in 1883, C. M. is alluded to as Charles Marshall. This is likewise the case in Johnson’s Encyclopædia, 1878, Vol. IV. p. 757. Fahie gives (“History of the Electric Telegraph,” London, 1884, pp. 68–77) a full account of the many inquiries instituted to establish the identity of C. M., which he admits to stand for Charles Morrison, although, at p. 81 of the same work, is given a letter of Sir Francis Ronalds alluding to Charles Marshall, of Renfrew. An article in Cornhill Magazine, Vol. II for 1860, pp. 65–66, speaks of an elderly Scotch lady who remembered a very clever man named Charles Marshall, who could make “lichtnin’ write an’ speak” and who could “licht a room wi’ coal-reek” (coal-smoke).
In his remarks upon the afore-named letter, made during the year 1859, Sir David Brewster says: “Here we have an electric telegraph upward of a hundred years old, which at the present day would convey intelligence expeditiously, and we are constrained to admit that C. M. was the inventor of the electric telegraph.... Everything done since is only improvement.”
References.—Scots’ Magaz., XV. p. 73; “Le Cosmos,” Paris, Feb. 17, 1854; “Dict. of Nat. Biog.,” Vol. XXXIX. p. 107; Athenæum of Nov. 5, 1864; Lesage, at A.D. 1774; Th. Du Moncel, “Exposé des applications de l’électricité,” Paris, 1874, Vol. III. pp. 1 and 2.
A.D. 1754.—Diwish (Prokop), Diviss—Divisch (Procopius), a monk of Seuftenberg, Bohemia (1696–1765), erects, June 15, 1754, a lightning protector upon the palace of the curator of Prenditz, Moravia. The apparatus was composed of a pole surmounted by an iron rod supporting twelve curved up branches and terminating in the same number of metallic boxes filled with iron ore and closed by a boxwood cover traversed by twenty-seven sharp iron points which plunged at their base in the ore. All the system of wires was united to the earth by a large chain. The enemies of Diwish, jealous of his success at the court of Vienna, excited the peasants of the locality against him, and, under the pretext that his lightning rod was the cause of the great drought, they made him take down the lightning rod which he had utilized for six years and then imprisoned him. What is most curious is the form of this first lightning rod, which is of multiple points, like the one M. Melseu afterward invented.
References.—Poggendorff, Vol. I. p. 580, for Procopius Divisch’s “Erfand einen Wetter Ableiter”; Scientific American, Sept. 10, 1887, p. 160; “Kronika Prace,” by Pokorny, of Prague; “Historical Magazine,” Feb. 1868, Art. XII. p. 93; “Prague News,” for 1754, art. of Dr. Scrinci.
A.D. 1754.—Ammersin (Rev. Father Windelinus), of Lucerne, Switzerland, announces in his “Brevis relatio de electricitate,” etc., that wood properly dried till it becomes very brown is a nonconductor of electricity. We have already mentioned the observation made by Benjamin Wilson (A.D. 1746) that, when a dry, warm piece of wood is broken across, one of the pieces becomes vitreously and the other resinously electrified.
Ammersin advises boiling the dried wood in linseed oil or covering it with varnish to prevent the possible return of moisture, and he states that wood thus treated seems to afford stronger appearances of electricity than does even glass (Phil. Trans., Vol. LII. part i. p. 342).
References.—Ammersin, “Kurze Nachricht,” etc., pub. at Basel, 1771, and translated the same year by Jallabert, who embodied it in his “Versuche über die Elektricität,” etc.
A.D. 1754.—In his “Dissertations sur l’incompatibilité de l’attraction,” etc., Le Père Gerdil, Professor of Philosophy in the Royal University of Turin, speaks of agencies of which we shall never know anything and of others with which we shall inductively become acquainted, although we shall always ignore many of their respective quantities, qualities and differences. He says that the electric fluid explains the sympathy known to exist between amber and straws—shown by the analogy observed between electricity and magnetism to be the same as that existing between iron and the loadstone.
A.D. 1754.—Mr. Strype produces the sixth and last edition of the original “Survey of London” by John Stow, which first appeared during the year 1598.