Excerpt from Cyclopedia of the Useful Arts: Including Agriculture, Architecture, Domestic Economy, Engineering, Machinery, Manufactures, Mining, Photogenic and Telegraphic Art; Being an Exposition of Their and Practice and a Compend of American and European Invention
The aim and scope of this volume is perhaps sufficiently indicated in the title-page. It is intended to comprise, in a clear and comprehensive form for popular reference, a dictionary of all terms used in the application of science to the useful arts. It is believed that a manual of this kind - sufficiently full in its details for ordinary purposes, and accurately posted up to the present time, yet in a comparatively moderate compass - will meet a very important want in this country, which is yet unfilled by the larger and more expensive works already before the public.
The number of new inventions of various sorts constantly brought forward in the United States is so enormous, and the proportion of those which prove really valuable is so small, that it would be needless in a volume like this to attempt any thing more than a reference to the most important and established improvements. The number of applications for patents in the year 1849 was 1955, - of which 1066 were granted. The editor of this volume has endeavored to condense in its pages as much practical information as the limits of the work would admit, from various recent sources, such as the reports of the Patent Office, and the scientific periodicals, as well as from the standard works of Brande and Ure.
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