tees who avail themselves of for either Gas, Oil, Water, or Minera] the cheap and easy method now offered for obtaining Tests, Boilers, Engines, Pipe, Useful, Beautiful, and Cheap. Cordage, Drilling Tools, etc. patents in Canada is very large, and is steadily increas- Illustrated catalogue, price… … Australia, and the other British Colonies. Covers. Subscription price, per annum, $2.50. Address An experience of FORTY years nas enabled the and remit to publishers of THE SCIENTIFIC AMERICAN to establish MUNN & CO., Publishers, competent and trustworthy agencies in all the principal foreign…
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