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Scientific American, Vol. 21, No. 21 (1869) (1869)

leaf 4

An illustration from Scientific American, Vol. 21, No. 21 (1869), 1869, leaf 4
ly, candles of differ- would requiye a continuous force of 1,200 Ibs. ;—equal to 650- position being that shown in Fig. 2. ent sizes, that the simple device, illustrated in our engraving, horse power. has been perfected. Several persons during the present century, have been shrewd enough to… … admit the possibility are forced to confess that they cannot see pressure. This plan appeared feasible to most scientific men until the experiment was made and the theory tested, when how it can be done. And among the most skeptical on this It consists in the application.ef #.cup to the ordinary…

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