CONTENTS AND ILLUSTRATIONS. 5 
Distribution of corundum in the United States — Continued. Page. 
Corundum — Continued. 
Alabama 131 
Virginia ... 181 
Pennsylvania 181 
New York and New Jersey 182 
Connecticut 132 
Massachusetts 132 
Montana . : _ . . 133 
Emery 134 
Massachusetts 134 
New York ... 137 
North Carolina 180 
Virginia 140 
Corundum localities in the United States 140 
Alabama .. 141 
California . . 141 
Colorado . . . ! 141 
Connecticut 141 
Delaware 142 
Georgia 142 
Idaho 143 
Maine 143 
Maryland 144 
Massachusetts 144 
Montana 144 
Nevada . 144 
New Jersey 145 
New York 145 
North Carolina _ _ . : 145 
Pennsylvania _ . _ 149 
South Carolina 149 
Utah 150 
Virginia. . 150 
Alaska 150 
Distribution of corundum in foreign countries 150 
Canada -.--- 151 
Australia 153 
India . 153 
Burma, Siam, and Ceylon . . 155 
Turkey .-.. 155 
Grecian Archipelago 156 
Other localities - - 157 
Technology of corundum . - . - - 159 
Methods of mining . 159 
Methods of cleaning . . 160 
Uses of corundum . 162 
Watch jewels . - 162 
Corundum wheels 163 
Vitrified wheel - - 165 
Chemical wheel 167 
Cement wheel 167 
Other uses 167 
Suggestions to prospectors for corundum 168 
Index 171 
