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How To "Assay Manual" Book by Charles Fulton Gold-Fluxes-Silver-Furnace Plans
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By Chas. Fulton, published in 1911, 215 pages, soft bound high qualitycopy of out-of-print book. Contains the assay mixtures and fullinformation on each step of the assay including some data on assayingplatinum. Fire assays have been the method of detecting gold for thelast 5000 years. Chapters are on tools, sampling, weighing, reduction,crucible assays, cupellation and parting, special methods and errors inthe assay. An advanced book on assaying