24 HATCH : THE KOLAR GOLD-FIELD. 



rails, etc.) and one compartment for pit-work. In Oakley's shaft of 

 the Ooregum Mine (see PI. 3), the cage-roads are 3 ft. 8| inches by 

 3 ft. i£ inches; the skip-roads, 3 ft. 5! inches by 3 ft. 1^ inches; the 

 two ladder-ways, 4 ft. 6 inches by 3 ft. 5I inches; and the capstan 

 and engine shafts, 4 ft. 6 inches by 3 ft. 8| inches. In the inclined 

 portion of the shaft there are of course no cage-roads, and the two 

 skip-roads occupy the space of the four hoisting compartments of the 

 vertical portion. In the new vertical shaft of the Champion Reef Mine 

 (see PI. 2), the skip-roads are 3 ft. g inches by 3 ft. 6 inches ; the cage- 

 roads, 4 ft. 2 inches by 3 ft. 9 inches ; the capstan and engine shaft, 

 7 ft. 6 inches by 5 ft. 6 inches; and the ladder-way, 7 ft. 6 inches by 

 2 ft. 1 inch. In the Ribblesdale shaft of the Mysore Mine (see PI. 2), 

 which within timbers measures 12 by 6| feet, the skip-roads are 3 ft. 

 by 3 ft. ; the cage-roads 3 3 ft. 4 inches by 3 ft. ; and the engine shaft 

 5 ft. by 4 ft. 8 inches. The inclined portion of the shaft is four feet 

 longer than the vertical portion, to provide an extra road for a trolley 

 or gig to raise and lower men, and for hoisting deads from develop- 

 ment work for filling in the old stopes, the power being furnished by 

 a small air hoist at the top of the incline. The new shaft (Edgar 

 shaft) which is being sunk to develop the deeper levels of the 

 Mysore Mine is circular, the diameter inside the brick walling being 

 18 feet; the details of the division into compartments have not yet 

 been fixed. 



As a general rule the inclined shafts follow the true underlie of 

 the vein, but in two cases in the Mysore Mine (Crocker's and Ribbles- 

 dale's shafts) they have been sunk along the dip of the ore-chutes. 

 This method has the advantage of obviating the driving of long levels 

 through barren ground, when the chutes have dipped away from the 

 underlie shafts. The same plan is followed in regard to winzes which 

 are sunk to develop the big and rich folded sections of the vein. The 

 method usually adopted for transferring the skip during its passage 

 to the surface from the runners of the inclined portion to the guides 

 of the vertical portion of the shaft is shewn in fig. 4, 



