The SciencesAn Electrically Operated Marble QuarryMany Different Machines at Widely Scattered Points Demonstrate the Advantages of this Kind of PowerBy Frank C. Perkins on August 5, 1916AdvertisementABOUT THE AUTHOR(S)Recent Articles by Frank C. PerkinsA Portable Gasoline Drag SawNovel Auto ReelGuide Carriage for Laying Large Sewage Concrete Pipes in Tunnels