The Life and Letters of Faraday (Volume 2)

This historic book may have numerous typos, missing text, images, or index. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. 1870. Not illustrated. Excerpt: ... as well as in that which is their own and proper to 1857. them? J5T.65-66. 'Ever, my dear Sir, most truly yours, 'M. Faraday.' His second lecture for the Institution was on the relations of gold to light. At the end of the lecture he said: 'The object of these investigations was to ascertain the varied powers of a substance acting upon light when its particles were extremely divided, to the exclusion of every other change of constitution.' In his notes he wrote: ' We are looking for the first small, and as yet unknown, effects, for these grow up into the great advanced truths of science--as a bubble--a breaking forth--a cascade--a storm--Niagara or Schaffhausen --the cannon's mouth.' After Easter he gave a course of six lectures on static electricity. An account of a ready method of determining the presence, position, depth, length and motion (if any) of a needle broken into the foot, was published in the 'Proceedings' of the Medical and Chirurgical Society for March 18th. In this, as in all that he did, the perfection of his hand work as well as his head work is to be seen. He gave the Juvenile Lectures on electricity. He made six reports to the Trinity House. The most important was on Holraes's magneto-electric light, which was put up at Blackwall, and observed from Woolwich, and compared with a Fresnel lamp in the centre of Bishop's lens, and also in the focus of a parabolic reflector. He critically examined the cost of the apparatus, the price of the light, the suppositions 1857. regarding its intensity and advantages, and the propoJEr.65-66. sition to put one up in a lighthouse. He agreed to the trial of the light at the South Foreland. He was made Member of the Institute of Breslau; Corresponding Associate of the Institute of Sciences, Venice; an...