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Scientific American, Vol. 53, No. 18 (1885) (1885)

leaf 7

An illustration from Scientific American, Vol. 53, No. 18 (1885), 1885, leaf 7
edges of the rams inner platinum tube, while the entire appara- complete food of a cow as hay. We know that such (which are cast hollow with open tops), and bored to tus is maintained at a high temperature by means concentrated food would be quite dangerous to feed a receive the rods. The rods are… … The pump valves very . valuable fea- are of a tough rub- IMPROVED COMPOUND PUMPING ENGINE. ture, asit enables the ber, working over battery to be worked grated seatings, un- with Strong producer gas, consisting mainly of hydro- nutriment in these foods will be as cheap to make up der mushroom…

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