T H E C U B A R E V I E A\' 



17 



Hills ShoAving Shafts and Aliuii-ig OperaUuu.- 



('■('iieral \'ie\v of Mines and Plan.t. 



of racial prejudice, and the company considers these Gallegos to be the best class of mining 

 labor owing to their good habits and to the fact that they are contented, and they are employed 

 in .preference to others. 



The Cuba Copper Company holds many claims for the ore deposits in the liills about El 

 Cobre, and at present four of these locations are being actively worked. The operations are 

 what is known as "shaft and tunnel" work and the greatest depth at which they are now taking 

 out ore is six hundred feet below the surface ot the hills. Owing to the pressing demand for copper 

 at the present time, they are working two shifts of men day and night, and are taking out hun- 

 dreds of tons daily which run from six to eighteen per cent copper. The mines are equipped 

 with elevators and at the bottom of each main shaft is a 'arge pump which is constant' j' pump- 

 ing the water out of the mines. 



The rock-ore is brought to the surface in a skip and dumped into a chute from which it is 

 fed into a crusher; from the cioisher the rock-ore is carried on a broad apron conveyor to the 

 rolls, where it is pulverized. The pulverized ore is then delivered to a series of flotation cells, 

 where it is mixed with compressed air, water and crude oil. After an agitating process this 



