24 CHARLES GRIFFIN <k CO:S PUBLICATIONS. 



With numerous Tables and Illustrations. Crown 8vo. Cloth, 10/6. 

 Second Edition ; Revised. 



ASSAYING (A Text-Book 



For the use of Students, Mine Managers, Assayers, &c. 



C. BERINGER, F.I.C., F.C.S., 



Late Chief Assayer to the Rio Tinto Copper Company, London, 



J. J. BERINGER, F.I.C., F.C.S., 



Public Analyst for, and Lecturer to the Mining Association of, Cornwall. 



General Contents. 



PART I. INTRODUCTORY ; MANIPULATION: Sampling; Drying; Calculation of Re- 

 sults Laboratory-books and Reports METHODS: Dry Gravimetric; Wet Gravimetric- 

 Volumetric Assays : Titrometric, Colorimetric, Gasometric Weighing and Measuring 

 Reagents Formulae, Equations, &c. Specific Gravity. 



PART IT. METALS : Detection and Assay of Silver, Gold, Platinum, Mercury, Copper, 

 Lead, Thallium, Bismuth, Antimony, Iron, Nickel, Cobalt, Zinc, Cadmium, Tin, Tungsten, 

 Titanium, Manganese, Chromium, &c. Earths, Alkalies. 



PART III. NON-METALS : Oxygen and Oxides; The Halogens Sulphur and Sul- 

 phates Arsenic, Phosphorus, Nitrogen Silicon, Carbon, Boron. 



Appendix. Various Tables useful to the Analyst. 



"A REALLY MERITORIOUS WORK, that may be safely depended upon either for systematic 

 instruction or for reference." Nature. 



" Of the fitness of the authors for the task they have undertaken, there can be no ques- 

 tion. . . . Their book ADMIRABLY FULFILS ITS PURPOSE. . . . The results given of 

 an exhaustive series of experiments made by the authors, showing the effects of VARYING 

 CONDITIONS on the accuracy of the method employed, are of THE UTMOST IMPORTANCE." 

 Industries. 



"A very good feature of the book is that the authors give reliable information, mostly 

 based on practical experience." Engineering. 



" This work is one of the BEST of its kind. . . . Essentially of a practical character. 

 . . . Contains all the information that the Assayer will find necessary in the examination 

 of minerals. " Engineer. 



LONDON: EXETER STREET, STRAND. 



