. Bulletin - United States National Museum. Wissenschaft. Vetter, Chichester Bell, der Pädagogischen Hochschule Chemie in London vereinbart worden war, zu kommen, da die dritte zuordnen. Während seines Aufenthaltes in Europa Bell erhielt den mit 50.000 Franken (10.000 $) Volta Preis, und es wurde mit diesem Geld, das Washington Projekt, der Volta Labor Association'', finanziert wurde. Tainter's Geschichte, in seiner Autobiografie, der- lishment des Labors, zeigt seine comparatie sim-plicity: Abbildung 2. âPhotographing Sound im Jahre 1884. Ein seltenes Foto gemacht auf der Volta Laboratory, Washington, D.C, von J. Harris Rogers, ein Frie

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. Bulletin - United States National Museum. Science. cousin, Chichester Bell, who had been teaching college chemistry in London, agreed to come as the third associate. During his stay in Europe Bell received the 50, 000-franc ($10, 000) Volta prize, and it was with this money that the Washington project, the Volta Laboratory Association, '' was financed. Tainter's story, in his autobiography, of the estab- lishment of the laboratory, shows its comparatie sim- plicity: Figure 2.âPhotographing Sound in 1884. A rare photograph taken at Volta Laboratory, Washington, D. C, by J. Harris Rogers, a friend of Bell and Tainter (Smithsonian photo 44312-jE). A description of the procedure used is found on page 67, of Tainter's unpublished autobiography (see footnote i). There, Tainter quotes Chichester Bell as follows: "A jet of bichromate of potash solution, viljiated by the voice, was directed against a glass plate im- mediately in front of a slit, on which light was con- centrated by means of a lens. The jet was so ar- rani^ed that the light on its way to the slit had to pass through the nappe and as the thickness of this was constantly changing, the illumination of the slit was also varied. By means of a lens ... an image of this slit was thrown upon a rotating gelatine-bromide plate, on which accordingly a record of the voice vihialioiis was ol)iained."' I therefore wound up my business alfairs in (Cambridge, packed up all of my tools and machines, and . . went to Washington, and after much search, rented a vacant house on L .Street, between 13th and 14th Streets, and fitted it up for our purpose."^ . . The Smithsonian Institution sent us over a mail sack of scientific books from the library of the Institution, to consult, and primed with all we could learn ... we went to work.° . . We were like the explorers in an entirely unknown land, where one has to select the path that seems to be most likely to get you to your destination, with no knowledge of what

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• bookcentury1800
• bookdecade1870
• booksubjectscience
• buchautorun