Inventors at work, with chapters on discovery (1906)
Iles, George, 1852-1942 · New York, Doubleday, Page & company · leaf 509
y feet wide, fifty feet high, with walls sixinches thick at the bottom, three at the top, coated inside with aninch of Portland cement. At Louisville, Kentucky, a reservoirhas been built 394 by 460 feet, and abouttwenty-five feet high. Its walls and columnsare concrete, its roof is in reinforced…
Inventions · Inventors
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Cosmographia Francisci Mavrolyci Messanensis Sicvli : in tres dialogos distincta, in quibus de forma, situ numerʹoq[ue] tam coelorum q[uam] elementorum, alijsq[ue] rebus ad astronomica rudimenta spectantibus satis disseritur (1543)](https://img.insideoutlibrary.com/img/200/ia-cosmographiafran00maur-100-0.webp)
