380 THE DIAMOND PKOStECTING CORE DRILL. 



distinguished her years ago. To the dark cloud, however, there 

 is a silver lining, for we are assured by the highest mining 

 authorities of the day that there is every probability of this 

 highly valued ore of tin, which forms such a valuable and 

 indispensable article of commerce, being found below the work- 

 ings of the long- since abandoned copper mines of the county. 

 Cornwall is essentially a mining county, and if she is to 

 maintain her position as a tin producer, the mining industry must 

 be fostered in every conceivable way. The Diamond Drill has 

 amply justified its existence in many parts of the globe, rapidly 

 growing in popularity as a means of expeditiously testing for 

 minerals, and I firmly believe that if adopted in Cornwall, and 

 deep boi'ings are made in the abandoned mining districts and 

 in the virgin ground, highly important discoveries of tin will 

 result, and that very many years will roll by ere Cornwall will 

 be pronounced to be tinless 



