nct pal libraries and reading rooms of the world. We invite the attention of those who OF wish to malce their business known to the annexed AMERICAN MACHINISTS AND ENGI. rates. A business man wants something more NEERS, INCLUDING THE than to see his advertisement in a printed news- Construction,… … i XXIL—Manipulation of metals. and steady employment to acompetent man. Ad- Wat, L. AVERY, Baltimore, Md. PART IV.—STEAM AND THE STEAM ENGINE.—CHAPTER dress (9 1] XXIII.—The science of steam engineering. XXIV.—Pis- ton speed of beam engines. XXV.—How to set a slide POR’S CHANGE WHEEL TABLES for…
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