enough slotting machines in use, and of the lighter and develop the best interests of the country, but disposing a pair of dogs, a, fixed upon a horizontal tools there are also too few. We should like to see show our gratitude by employing new machinery shaft in connection with the side of the… … week, the best scientific journals of Great Britain, France and Ger- MARSHALL'S PATENT RAILROAD SWITCH. many ; thus placing in our possession all that is transpiring in me- chanical science and art in those old countries. We shall continue to iron jaws as if they were in a vice. NThere are two…
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