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Scientific American, Vol. 28, No. 26 (1873) (1873)

leaf 4

An illustration from Scientific American, Vol. 28, No. 26 (1873), 1873, leaf 4
raving consists of a sec- way as with any other combustible, by attaching a handle to 25, we had the opportunity of examining the apparatus on tion of the fire box. In these views, @ a@ are toothed rollers the feeding rollers and turning them by hand instead of by the clocktower; the speed was only… … ance of the tail of the comet this is very light labor and of 1858 when in perihelion. At the place illumined by the can easily be performed by a boy. On the occasion of a trial, beam, objects could be seen, and books and letters read with shaft. detailed in our cotemporary, in thirty-two minutes…

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