TABLE OF CONTENTS. vii 



PAGE 



Range, 151 ; Copper Basin, 151 ; Example 2Qg, Crismon-Mammoth, 

 Utah, 152 ; Sunrise, Wyo., 152 ; Example 21, copper ores in Tri- 

 assic or Permian sandstone, 152-154 ; Eastern States, 152-153 ; 



Western States, 154 ; statistics of copper, 155 134-155 



/ 

 CHAPTER V. LEAD ALONE. 



Introductory and analyses, 156 ; Example 22, Atlantic Border, 

 St. Lawrence Co., N. Y., 156; Massachusetts, Connecticut, and 

 Eastern New York, 157, 158 ; Southeastern Pennsylvania, 157 ; 

 Davison Co., N. C., 157 ; Example 23, Southeast Missouri, 158-159 ; 

 statistics of lead, 160 156-160 



CHAPTER VI. LEAD AND ZINC. 



Example 24, the Upper Mississippi Valley, 161-164 ; Example 

 24a, Washington Co., 165; Example 246, Livingston Co., Ky., 165; 

 Example 25, Southwest Missouri, 166-172 ; Example 26, Wythe Co., 

 Va., 172 161-173 



CHAPTER VII. ZINC ALONE OR WITH METALS OTHER THAN LEAD. 



Introduction, tables of analyses, 174; Example 27, Saucon 

 Valley, Penn., 174-175; Example 28, Franklin Furnace and Ster- 

 ling, N. J.. 175-179 ; statistics of zinc, 180 174-180 



CHAPTER VIII. LEAD AND SILVER. 



Introduction, 181 ; Rocky Mountain Region and Black Hills, 

 181-193 ; New Mexico, 181-182 ; Example 29, Kelley Lode, 181 ; 

 Colorado, 182-191 ; Example 30, Leadville, 182-185 ; Example 30a, 

 Ten Mile, Summit Co., 185-186; Example 306, Monarch district, 

 186 ; Example 30c, Eagle River, 186 ; Example 30d, Aspen, 186 and 

 188-190 ; Example 30e, Rico, 190 ; Example 31, Red Mountain, 190 ; 

 South Dakota, Example 30/, 191 ; Montana, Idaho, 191-192 ; Ex- 

 ample 32, Glendale, 191 ; Example 32a, Wood River, 191-192 ; Ex- 

 ample 33, Wickes, 192 ; Example 34, Cceur d'Alene, 192 ; region of 

 the Great Basin, 192-198; Utah, Example 35, Bingham and Big and 

 Little Cotton wood, 192-194 ; Example 35a, Tooele Co., 194 ; Exam- 

 ple 356, Tintic ; Example 30g, Horn Silver, 195 ; Example 33a, Car- 

 bonate Mine, Beaver Co., 195 ; Example 326, Cave Mine, Beaver 

 Co., 195; Nevada, Example 36, Eureka, 196-197; Arizona, Cali- 

 fornia, 198 181-198 ,. 



CHAPTER IX. SILVER AND GOLD. INTRODUCTORY: EASTERN SILVER 

 MINES AND THE ROCKY MOUNTAIN REGION OF NEW MEXICO AND 

 COLORADO. 



Introduction, 199 ; Examples 37^12 defined, 199-200 ; silver 

 minerals, 200 ; Example 22a, Atlantic Border, 201 ; Example 42, 

 Silver Islet, 201 ; region of the Rocky Mountains and the Black 

 Hills, 202-215 ; New Mexico, geology, 202-203 ; mines, 203-204 ; 

 Colorado, geology, 204-205 ; San Juan region, 205-210 ; Gunnison 



