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Scientific American, Vol. 38, No. 13 (March 1878) (1878)

leaf 4

An illustration from Scientific American, Vol. 38, No. 13 (March 1878), 1878, leaf 4
the cavity, i, Fig. distinctly perhaps), at the same time the blood globules are 4, in the valve, B, traversing the orifices, j and k, and thence To promote ventilation in rooms, a little wind-rose or in focus. wheel with, vanes is often used, being inserted in an aperture enter the cylinder by the… … THE NEW OTTO GAS ENGINE. coarse divisions, the lines of which are ■£$ of an inch (^ of a Raphael, of Breslau, makes such ventilators of mica, with a minates in a burner which is constantly lit during the opera- mm.) apart, and place it in your A eye piece, so that its lines narrow metallic outer…

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