75 



ponderates largely through increasingly basic varieties to 

 a pyroxenite and an iron ore. No regular order is observa- 

 able in the distribution of these varieties. 



The party will not have time to visit the occurrences 

 of iron ore in question, but some large blocks of it have 

 been brought out to the main road and from an examination 



1 ■— 



ST" 





... 



■H 



. ^- x # 



H,. 





$S&"-^ ■* 





Mm Y 









pup 



RIP 





■*$$£& 



.- Hfc sPte^s. 'ijH B^^ 





BSl ' , -"- <^B 



■SI K%f-1 



Pusey's iron ore. Glamorgan, lot 35 of con. IV (X 19 diam.) Pyroxene individuals enclosed in 

 iron ore. About each pyroxene there is a narrow border of hornblende. 



of these its character may be seen. It is a titaniferous 

 iron ore, containing a small percentage of vanadium, as 

 shown by the following analysis : — 



