xii CONTENTS. 



CHAPTER XI. 

 SURVEYING. 



PA.01 



To calculate areas. To find the distance from an inaccessible 

 place. To solve problems in connection with adits, shafts, 

 lodes of a mine. Position of a shaft with regard to a lode . 132 



APPENDIX. 



Weights and measures of England, France, &c. "Weights of 

 various rocks and metallic ores. Specific gravity of metals, 

 metallic ores and rocks. Table of natural sines. Melting 

 point of various metals. Table to find the number of ounces 

 of metal to the ton of ore. To find the weight of ore in a 

 lode and the value of a property 141 



GLOSSARY OF TEEMS USED IN CONNECTION WITH PROSPECTING, 

 MINING, MINERALOGY, ASSAYING, &o. 163 



INDEX 169 



