Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 177
Fig.165. The Peltmi waterwheel 150 WORK A^B HEAT ENERGY One of the largest turbines in existence is operated by the Puget SoundPower Co. It develops 25,000 horse power under a 440-foot head of water.
Physics
Internet Archive · UBC Library · Public Domain Mark 1.0. Free to use for anything.