New York Diamond Company, as a part of the history an enlarged section of the rough gem, showing the grain, constant practice, extending perhaps over a lifetime. along which it may be as cleanly cleft as a piece of wood, of the art in the United States, from which others in future HOW-DIAMOND… … establishment in the ing finely perfora- DIAMOND POLISHERS OK SLYPEES. ted. Also on the iface of many serious countered, as jewelers and owners of gems necessarily pre- table were a number of sticks like spindles, which, with a obstacles. There was an import duty of ten per cent on the fer sending…
Patents · Heat · Consists · Iron · Improved · Specific heat · Center · Diamond cutting · Crude oil · Horse power · Steam boiler · Scientific American · Sewing machine · Steam engine · Secondary spectrum · Steam engines
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