The author, Francis Bosqui, was the Superintendent of the Standard Consolidated Mining Company's Cyanide Works, Brodie, California. Brown hard covered book of 201 pages. Includes many illustrations including a number of pullout photographs. Contents include history of Chemistry, laoratory tests, design of works, construction details, arrangements of pipes. leaching process, zinc, Nevada, South Africa, Australia. Chapter 14 is the exemplifications of practice: Australia, new Zealand and India. it includes references to Kalgoorlie, Hannan Brownhill mill, South German mine at Maldon, W.B. Gray, Day Dawn Mine in Western Australiacyanide, bosqui, nevada, america, mining