HENRY, JOSEPH.

Contributions to Electricity and Magnetism. No. III (and) IV. On Electro-magnetic Induction.

London, Richard and John E.Taylor, 1840-41. 8vo. 2 contemp. hmorocco. Tears to spines. Frontcovers on both volumes loose. Stamp to foot of titlepages. In: "The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science. Conducted by David Brewster et al.". Vol. XVI a. vol. XVIII. VIII,607,(1) pp. a. 5 plates. + VIII,616 pp., 2 plates. (Entire volumes offered). Henry's papers: pp. 200-210, 254-265, 551-562, textillustr. (in vol. XVI) a. pp. 482-514, textillustr. (in vol. XVIII).

First printing in England of this pioneering paper on electro-magnetic induction in which Henry carried out his program of determining the relationship of static and dynamic electricity.

The volumes also contains first printings by CHARLES LYELL "On the Boulder Formation, or drift and associated Freshwater Deposits composing the Mud-cliffs of Eastern Norfolk". Pp. 345-380, textillustr. (1840), and JOHN W. DRAPER "An Account of some Experiments made in the South of Virginia, on the height of the Sun".Pp. 81-84 and his "On the Electro-motive Power of Heat. Pp. 451-461.
On p. 535 we have the first announcement of the first sucessfull photographic portrait taken. Draper’s first reported portraiture was that of his sister, Miss Dorothy Catherine Draper, dressed in white sitting still for a period of 65 seconds.

"Professor Draper, of the University of New York, informs us in a note dated March 31st, that he has succeeded during the Winter in procuring portraits by the Daguerreotype, and that they have all the beaty and softness of the most finished mezzotint engraving, and only requirefrom 20 to 45 seconds for execution."

Order-nr.: 48011