Mine Safety Devices Developed by The United States Bureau of Mines. Written by Van. H. Manning. An article published by the Smithsonian Institution in 1916 : 12 pages, 7 plates.
Washington: Smithsonian Institution, 1916. Booklet - Unbound Pages. Manning’s description of mine‑safety innovations developed by the U.S. Bureau of Mines, including rescue equipment, gas detectors, and the seven plates illustrating apparatus. 12 pages, 7 plates. An authentic standalone article, extracted from a larger volume. Not a reprint or reproduction, but..... More