The Metallurgy of Silver, Gold, and Mercury in the United States
A technical treatise on silver, gold, and mercury metallurgy by Thomas Egleston, published in London by the offices of "Engineering" in 1887 for mining engineers and mill operators. The figures are engraved machine drawings in elevation, plan, and section — tossing tubs, ore canvases, knee pans, furnace flues — offering ruled linework, hatched cutaways, and scale bars.
