The SciencesWater-Jet Pump for Home Use, Method of Duplicating a Tapered Spindle, and moreBy H. B. Dailey on November 19, 1910AdvertisementABOUT THE AUTHOR(S)Recent Articles by H. B. DaileyAn Interesting Static Electric MotorAn Easily Made Leyden Jar Charger, How Clouds Get Their Fringes, and moreA Convenient Hydrogen Generator