Annual of Scientific Discovery: Or, Year-Book of Facts in Science and Art for 1869, Exhibiting the Most Important Discoveries and Improvements in Mechanics, Useful Arts, Natural Philosophy, Chemistry, Astronomy, Geology, Biology, Botany, Mineralogy, Meteo

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Fb&c Limited, 7 mrt. 2018 - 388 pagina's
Excerpt from Annual of Scientific Discovery: Or, Year-Book of Facts in Science and Art for 1869, Exhibiting the Most Important Discoveries and Improvements in Mechanics, Useful Arts, Natural Philosophy, Chemistry, Astronomy, Geology, Biology, Botany, Mineralogy, Meteorology, Geography, Antiquities

The training of the eye, in which most deficiency is found, owing to the substitution of engine-lathe work for hand turning, and planing for the old-time chipping and filing, might easily be obtained by practice in drafting, which demands both skill of hand and eye, and to most mechanics would be found a pleasant recrea tion as well as a valuable accomplishment.

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