Chapter 16

SILICON, CARBON, BORON.

SILICON AND SILICATES 405 CARBON AND CARBONATES 414 COALS 418 SHALES 420 CARBONATES 424 BORON AND BORATES 429

APPENDIX A.

Table of atomic weights and other constants 433 Table for converting degrees of the centigrade thermometer into degrees of Fahrenheit's scale 435 Tables showing strengths of aqueous solutions of nitric and hydrochloric acids, of ammonia and of sulphuric acid 436

APPENDIX B.

Estimation of small quantities of gold 440 Practical notes on the iodide process of copper assaying 441 Method of separating cobalt and nickel 442

APPENDIX C.

A lecture on the theory of sampling 444

INDEX 450

A TEXT-BOOK OF ASSAYING.