ii CONTENTS. 



CHAPTER V. 



Metallurgical Practice. 



Milling 45 



Treatment of the tailings 5 1 



CHAPTER VI. 



Mine Economics, 

 i. — Material and supplies — 



(a) Railway rates ......... 56 



(b) Fuel 57 



(c) Timber • . . 57 



(d) Dynamite . .60 



(e) General stores ......... 60 



2. — Labour — 



(a) European and native ........ 61 



{b) Wages . 62 



3. — Administration and sinking costs ....... 63 



CHAPTER VII. 



Gold Production and Dividends. 



Tonnage of ore crushed by the mines ....... 69 



Value of gold won from the mines . ..... 70 



Dividends paid 71 



Revenue and disbursements ........ 72 



Appendix. — Notes on Rock-specimens, collected by Dr. F. H. Hatch on the Kolar 

 Gold-field, by T. H. Holland. 



PART II. 



Reports on some Auriferous Localities in India, 

 by H. H. Hayden, B.A., B.E., F.G.S., Officiating 

 Deputy Superintendent \ Geological Survey of India, and 

 F. H. Hatch, Ph.D., F.G.S., Assoc. M. Inst. C.E., 



Mining Specialist, Geological Survey of India. 



ARTICLE 1.— The Gold-fields of Wainad, by H. H. Hayden, B.A., 

 B.E., F.G.S., Officiating Deputy Superintendent, Geological 

 Survey of India, and F. H. HATCH, Ph.D., F.G.S., ASSOC. 

 M. INST. C.E., Mining Specialist, Geological Survey of India. 

 (With plates I— VII.) 



Part i.— H. H. Hayden : Historical, Geological and Economic aspects. 



A.— Introduction. 

 A brief historical sketch of the gold mines. 



