The fire pot is made of cast iron, air of 25 pounds to the square inch. It was found which isa much better radiator of heat than brick, able that such a tynnel would be put right through that this did not have any effect upon the film, but and which also allows the fuel to drop evenly when under… … a position that they could not shine into the and boiler is only 4x6 feet. lens. The lensused was by Dallmever, 214 These engines and boilers are made by inchesaperture and 18 inches focal length, the plates Messrs. being 12 inches by 15 inches. We have received copies which are bound through east…
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