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Margaret Fuller, Memoirs of Margaret Fuller Ossoli (ed. W. H. Channing) 16 0 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 4 0 Browse Search
Thomas Wentworth Higginson, Carlyle's laugh and other surprises 4 0 Browse Search
Mary Thacher Higginson, Thomas Wentworth Higginson: the story of his life 4 0 Browse Search
Edward L. Pierce, Memoir and letters of Charles Sumner: volume 1 2 0 Browse Search
James Parton, Horace Greeley, T. W. Higginson, J. S. C. Abbott, E. M. Hoppin, William Winter, Theodore Tilton, Fanny Fern, Grace Greenwood, Mrs. E. C. Stanton, Women of the age; being natives of the lives and deeds of the most prominent women of the present gentlemen 2 0 Browse Search
Lydia Maria Child, Letters of Lydia Maria Child (ed. John Greenleaf Whittier, Wendell Phillips, Harriet Winslow Sewall) 2 0 Browse Search
Wendell Phillips, Theodore C. Pease, Speeches, Lectures and Letters of Wendell Phillips: Volume 2 2 0 Browse Search
Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories 2 0 Browse Search
James Parton, The life of Horace Greeley 2 0 Browse Search
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Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for Richter or search for Richter in all documents.

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Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
rence between the red lines produced by the flames of strontia and lithia, and in 1845 Professor W. A. Miller experimented upon the spectra of the alkaline earth metals. Professor Bunsen, however, so far advanced the subject that he, in conjunction with Kirchoff, may be almost said to have invented spectrum analysis as it now exists. Through its instrumentality Bunsen discovered, in 1860, the new metals caesium and rubidium; Crookes, in 1861, discovered thallium; and in 1864 Reich and Richter discovered indium. In Fig. 5357, A represents the improved spectroscope of Steinheil. It consists of a stand c carrying the flint-glass prism a, having a refracting angle of 60°. The stand has two arms, one of which carries the telescope f, and the other the tube g, containing a lens in the end nearest the prism, and at the other end a scale which can be seen through the telescope by reflection from the surface of the prism. Kirchoff's spectroscope. The light e is admitted to the
Knight's Mechanical Encyclopedia (ed. Knight), Z. (search)
m the ore becomes cooled in the head-piece b, and is condensed upon an iron plate beneath. This condensing-chamber is separated by partitions from those of the neighboring retorts, and all points of access are carefully luted. The operation is observed by a glazed eye-hole. The retorts are arranged in two ranks and heated by the fire between them. See zinc-furnace patents:— No.Name. 91,051.Thoma. 91,052.Thoma. 46,198.Webster. 6,180.Boyden. 32,840.Muller 99,145.Adams. 145,450.Richter. 16,594.Kent. 17,333.Mamier. 25,267.Kalbach. See also zinc-white. Zin′code. The positive pole of a galvanic battery. Zinc-og′ra-phy. The design is drawn on the zinc-plate with a material which resists acid. The surface of the plate being bit away leaves the design in relief to be printed from by the ordinary mode in printing from woodcuts. The process does not appear to have made much headway since its introduction in 1816, though some beautiful specimens were made in <