AURIFEROUS REEFS". 21 



show that they burrowed along the walls of the reef, removing only 

 so much of the quartz as was necessary to enable them to take out 

 the selvage, which lent itself more readily to their rude methods of 

 crushing and was usually richer and always more remunerative than' 

 the hard, white quartz. 



Of the other minerals enumerated above, chlorite and calcite 

 occur chiefly in the Phoenix mine near Pandalur, where they are 

 both very common: the presence of much basic igneous rock 

 (epidrorite) with lime-bearing felspars, in the neighbourhood of the 

 reefs, indicates the source from which the latter mineral was proba* 

 bly derived. 



As already stated, the majority of the more important reefs in 

 „ ,. . . .... south and south-east Waindd were examined 



Preliminary investigation, 



i8g9-«s°°' and, so far as possible, sampled during the 



preliminary examination (December 1899 to March 1900) : the reefs 

 examined included the reefs known as the Skull, Cavern, Kuruman 

 (Coorumber), Bear, Hamlin's and the Monarch reefs ; the reefs on 

 the Perseverance Company's property (Sulimalai), on Hamsluek 

 Hamslade, Adelphi and Harewood estates, all the above near Devdla ;.. 

 reefs on the Dunbar, Balcarres, Richmond, Phcenix and Glen- 

 rock estates near Pandalur; a reef on Grange estate at Cheramb^di, 

 and several reefs in the neighbourhood of Meppadi and Vayitri in 

 south WainaxL 



Samples were taken, as a rule, from the whole thickness of the 

 reef, but in places where the reef appeared to be unusually rich, 

 separate samples of the rich patches were also taken. These rich 

 patches consisted either of highly pyritous material, or else, as irv 

 "Wright's level " (SkulL reef ), were composed of the talcose and 

 ferruginous " casing ". 



The results of the above sampling were decidedly discouraging, 

 for although the richer patches frequently gave high results (over ioz. 

 of gold to the ton of ore), yet these patches were so small and of 

 apparently such infrequent occurrence as to make no appreciable 



( 2.1 ) 



