ful examination we unhesitatingly pro- nounce this the best book in its line which has ever yet for plowing or loosening the earth by steam appeared. It is almost invariably clearand correct, and interlards the exposition of principles with many valu- power should be mentioned a steam spading able… … equal facility. render the Scrznrirro AMERIOAN more and more spouts which serve the double purpose of L. B. and H. A. Meyer, of Massillon, Ohio, The halves of the coupling are held to- useful, and more and more worthy of their continued excavating the drills or channels, and provid- are…
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