By H.F. COLLINS, Assoc.R.S.M., M.Inst.M.M.

Part I.—LEAD:

A Complete and Exhaustive Treatise on the Manufacture of Lead, with Sections on Smelting and Desilverisation, and Chapters on the Assay and Analysis of the Materials involved. Price 16s.

Summary of Contents.—Sampling and Assaying Lead and Silver.—Properties and Compounds of Lead.—Lead Ores.—Lead Smelting.—Reverberatories.—Lead Smelting in Hearths.—The Roasting of Lead Ores.—Blast Furnace Smelting; Principles, Practice, and Examples; Products.—Flue Dust, its Composition, Collection and Treatment.—Costs and Losses, Purchase of Ores.—Treatment of Zinc, Lead Sulphides, Desilverisation, Softening and Refining.—The Pattinson Process.—The Parkes Process.—Cupellation and Refining, &c., &c.

"A thoroughly sound and useful digest. May with every confidence be recommended."—Mining Journal.


Part II. SILVER.

Comprising Details regarding the Sources and Treatment of Silver Ores, together with Descriptions of Plant, Machinery, and Processes of Manufacture, Refining of Bullion, Cost of Working, &c. Price 16s.

Summary of Contents.—Properties of Silver and its Principal Compounds.—Silver Ores.—The Patio Process.—The Kazo, Fondon, Kröhnke, and Tina Processes.—The Pan Process.—Roast Amalgamation.—Treatment of Tailings and Concentration.—Retorting, Melting, and Assaying.—Chloridising-Roasting.—The Augustin, Claudet, and Ziervogel Processes.—The Hypo-Sulphite Leaching Process.—Refining.—Matte Smelting.—Pyritic Smelting.—Matte Smelting in Reverberatories.—Silver-Copper Smelting and Refining.—Index.

"The author has focussed a large amount of valuable information into a convenient form.... The author has evidently considerable practical experience, and describes the various processes clearly and well."—Mining Journal.