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Scientific American, Vol. 43, No. 22 (November 1880) (1880)

leaf 7

An illustration from Scientific American, Vol. 43, No. 22 (November 1880), 1880, leaf 7
com- boro, the concentrating mill is about to demonstrate the plainants, which shows that the complainants are entitled to A patent has recently been issued to Daniel Ruggles, of value of the ores of that section. The mines of the Ba- Fredericksburg, Va., for a method of precipitating rain an… … AN IMPROVED TELEPHONE. PRECIPITATING RAINFALLS BT MEANS OF EXPLOSIVES. wrench. The tool has a movable reversible jaw whose The engraving shows an improved form of telephone re- lower end rests against an adjustable nut, which traverses It has frequently been noticed that ceiver and transmitter, and…

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