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Scientific American, Vol. 42, No. 5 (1880) (1880)

leaf 7

An illustration from Scientific American, Vol. 42, No. 5 (1880), 1880, leaf 7
in height, sothat a man can easily look down the smoke pipe remain as the foundation of the well or curbing, and thus has been patented by Messrs. Samuel A. De Force and Wil- while standing alongside of the track, and if he has tolera- prevent it from caving in. liam V. McConnell, of Crockett,… … side, and wooden hoops on the inside, and the annular cham- cases, and is liable to interruption in mild or open winters, HACKETT’S IMPROVEMENT IN DIGGING AND CURBING ber formed between the staves is filled with masonry. A in which case the logs left in the woods till the next season WELLS, are…

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