Index 



297 



242 ; its relation to igneous rocks, 

 125 ; reliance upon mining experi- 

 ence, 131; obstructiveness of, 132; 

 decay of, 136, 196, 257 ; first 

 serious checks to, 137, 144-146, 

 147, 243 



Wernerian Society, 193, 196 

 Western Isles of Scotland, 54 



Whinstone, Button on, 173 ; Hall's 



experiments on, 187 

 Widenmann, J. F. W., 122 

 Wiedemann, 137 

 Witham, H., 277 

 Woodward, J., 5 



ZIRKEL, Dr. F., 280 



THE END 



Printed by R. & R. CLARK, LIMITED, Edinburgh 



