e pro- SURE ism is not essentially different vided with two lamps, one white and the other green. AN IMPROVEMENT IN FURNACE CONSTRUCTION. from the ordinary European The hot-air furnace which we illustrate herewith is ooo clock; but the method of indi- so constructed that a large volume of heated… … the time of day, two cylinders having suction and discharge connection AN IMPROVEMENT IN FURNACE CONSTRUCTION. A QUAINT OLD JAPANESE CLOCK. the clock is re- with the water-main. In order to render the water- markable for its main continuous, a by-pass is employed, which con- and that the-draft may…
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