'_'.'! I MEMORIAL OF JOSEPH IIKMIY. 



equipment. He remarks: "As its magnetic flow was so powerful, 

 I had strong hopes of being able to accomplish the decomposition 

 of water by its means. My experiment however proved unsuccess- 

 ful. - - - I hope however to resume the research hereafter, 

 under more favorable circumstances."* 



Ilrnrv. unsatisfied with past efforts, determined to pursue the 

 subject in an exhaustive series of experiments; and had reached 

 some momentary indications of the galvanometer, when his experi- 

 ments were temporarily interrupted. Meanwhile it was announo d 

 in May, 1832, that Faraday had secured the long sought prize; 

 though the announcement was brief, and to those eager for particu- 

 lars, somewhat disappointing. Henry was accordingly induced to 

 publish in the following number of Silliman's Journal (that for 

 July i a sketch "f his own trials both before and after the announced 

 discovery. AVith reference to Faraday's discovery he remarks: 

 •• Xo detail is given of the experiments, and it is somewhat sur- 

 prising that results so interesting, and which certainly form a new 

 era in the historv of electricity and magnetism, should not have 

 been inure fully described before this time in some of the English 

 publications. The only mention I have found of them is the fol- 

 lowing short account from the 'Annals of Philosophy' for April, 

 under the head of Proceedings of the Royal Institution. — 'Feb. 17. 

 Mr. Faraday gave an account of the first two parts of hi- researches 

 in electricity; namely volta-electric induction, and magneto-electric 

 induction. - It' a wire connected at both extremities with 



a galvanometer, be coiled in the form of a helix around a magnet, 

 no current of electricity takes place in it. This i> an experiment 

 which has been made by various persons hundred- of time-, in the 

 hope of evolving electricity from magnetism. But if the magnet 

 he withdrawn from or introduced into such a helix, a current of 

 electricity is produced while flu magnet is in motion, and is rendered 

 evident by the deflection of the galvanometer. It' a single wire be 

 passed by a magnetic pole, a current of electricity i- induced through 

 it which can he rendered sensible.'! 



♦Silliman's Am. Jour. Sci. April, 1831, vol. xx. p. 201, foot-note. 



s,.y./,. Mi, i. and Annals of Phil. April. 1832, vol. \i. pp. 300, 301. Although 

 Faraday's first communication en galvanic induction, ami on magneto-elec- 

 tricity, was read before the Royal Society November 24, 1831, the published Trans- 



