istory of the progress external surface is obtained without the employment of inventions in this country. We are also receiving, every week The accompanying engravings represent an inven- of separate outside or front plates. the best scientific journals of Great Britain, France, and Germany ; thus… … Specimen copies will be sent gratis to any part of the country. iron plates as being the best for resisting shot, but ed by Mr. W. L. Thomas’and Colonel de Bathe, Lon- Western and Canadian money or Post-office stamps taken at par for experiment is the only way to resolve all such ques- don. The…
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