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Scientific American, Vol. 7, No. 21 (November 1862) (1862)

leaf 15

An illustration from Scientific American, Vol. 7, No. 21 (November 1862), 1862, leaf 15
Wkt Mttdxfk |i«a 336 On Shoeing Horses. or other devices which evil-disposed persons might opening of the cylinder. By this means the passage is employ to abstract the deposits. made much wider than it was when the paper or let- The following are some extracts from a letter in The construction and… … in a measure, attained by the street letter-boxes Office during the week previous ; thus giving a correct history of the choking or wedging fast is done away with. The par- progress of inventions in this country. We are also receiving, every which are affixed to the lamp posts, or placed in week,…

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