TABLE OF CONTENTS. 



LIST OF PLATES AND FIGURES. 



PAGR 



Reticulated Rutile (two cuts) 76 



Chart of Alphabets facing 88 



Dynamic Electricity (diagrams): 



Fig. 1 91 



Figs. 2 and 3 94 



Fig. 4 95 



Fig. 5 103 



San Juan Mountains: 



Fig. ],BearMt 123 



Fig. 2, Section of Mts. at Silver Link Mine 124 



Fig. 3, Section of Hills at Camp Paquine 125 



Chrysoberyl Cat's Eye (two cuts) 131 



Alexandrite (two cuts) 132 



Aquamarine (two cuts) 132 



Electric Winding-Apparatus for Clocks ir.5 



Star Garnets (four cuts) 226 



Seal of Academy 232 



Large Garnet from New York facing 265 



Double-Bulb Vial of Rock-Crystal, etc 269 



Japanese Method of Polishing Crystal Balls 270 



Method of Working Rock-Cry si a! in Germany and United States.. . 272 



Largest Crystal Ball in the United States 273 



Japanese Crystal Ball on Bronze Stand 273 



Russian Vase of Rock-Crystal 273 



