408 



Index 



Wells, deep, 138. 

 Wells, deep, at Hoilo, 67 

 Wells, surface, 140. 

 Wernerite, 96. 

 Wolframite, 96. 



219, 220. 



Ylang-ylang oil standards, proposed modifi- 

 cation of, 99. 



Z 



Zeolite, 96. 



o 



