CONTENTS. 



PAOB 



Preface to First Edition . iij 



Preface to Seventh Edition v 



CHAPTER I. 

 PROSPECTING. 



Prospecting for valuable minerals. In alluvial deposits. In veins 

 or deposits other than alluvial. Age of lodes. Shoding. 

 Detached portions of a lode. Proving continuity of a lode. 

 Vicissitudes of mining. Necessity for a proper assay. The 

 value of a lode dependent on several circumstances 



CHAPTER II. 



ROCKS. 



Rocks classified. Superposition of stratified rocks. Lamination. 

 Stratification. Denudation. Cleavage. Joints. The 

 condition under which metal -bearing deposits are found. 

 Nature of mineral veins in a lode, &c. Dip. Strike. 

 Clinometer. Compass . 13 



CHAPTER III. 



TESTING MINERALS BY THE BLOWPIPE. 



Apparatus required. How to use the blowpipe. Nature of the 

 flames. Methods of testing in an open tube and a tube closed 

 at one end. On charcoal with carbonate of soda. With 

 borax and microcosmic salt on platinum wire. Reactions 



