ve the pleasure to acknowl-edge the receipt of a specimen number of your jour-nal, and, in consideration of the favor, I have thepleasure of sending you the extreme profits of the porkspeculation in Iowa during the past season. Alwaysgrateful for small favors, I am, gentlemen, your obedient… … Expansion of Steam.Editors :—The answer to Mr. Wests fig-ures in your issue of February 15th is a matter ofvery simple proportion. The work done by thesmaller cylinder is thus represented :—1.0775 squarefeet piston X 50 lbs. pressure X 300 feet travel =16,162 foot lbs. The corresponding work by…
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