196 Mining Report JYo. 1. [Nov., 



In addition to the working upon the right, at A, three or four 

 other openings were made, as a', a", and a"'. Considerable ore 

 was obtained from these apparent veins; but it was rather lean, 

 and the works were pushed more for the purpose of ascertaining 

 the direction the vein or veins took, than for the amount of ore 

 which they yielded. At a'" then, and the other points, except a, 

 and 4, the inclination of the mass was north-east; at a, to the 

 north-west: and at 4, a lean vein penetrates the rock in the di- 

 rection the veins usually pursue in this district. 



The ore was afterwards, however, pursued in the valley; and 

 hence it is proper to introduce a general plan of the workings, 

 and the phenomena which are disclosed by them. 



-|- is near the centre of the valley, which opens to the east, and 

 falls rapidly off, furnishing a drain for the surface water. A, B, 

 C, D, E, mark the position of five shafts which have been sunk; 

 A, 30 feet, from which ore was obtained; B, 25 feet, furnishing 

 ore, but there was none at the surface; C, 40 feet; D, ^50 feet, 

 and no ore; E, 45 feet. From the last shaft a large amount of 

 ore was obtained. The shaft struck a mass, or as it was termed, 

 ajlat of ore, dipping gently to north-east, and apparently coin- 

 ciding Avith the first mass worked upon the hill. This was fol- 

 lowed thirty or forty feet to north-east, when the respiration of 

 the miners became impeded, and it was abandoned. This mass 

 lay in the central part of the valley. 



In attempting to reach the vein at D, the project failed; or at 

 least was not found at the depth of fifty feet. But here the top 

 of the shaft is many feet above the valley, and hence the failure 

 is to be attributed to the early abandonment of the work. 



At this stage of the description of these workings, it is proper 

 we should attempt to obtain an idea of the construction, if we 

 may so term it of the vein, or veins themselves, and their relations 

 to the rock. 



1. The relations of the ore upon the hill to that found in the 

 valley. — Upon this point, we remark that, we regard the former 

 as having been originally in continuity with the latter, and that it 

 was broken off", by an elevating force. This appears first, from the 

 nature of the termination of the mass M'hich was first worked, 

 which as has been described as terminating in an abrupt manner; 

 and second, from the recurrence of a similar mass, which was struck 

 by the shaft E, or by minings from it. This it is true dipped 

 slightly to the northeast, while the former dipped to northwest 

 to about the same amount. 



Fig 2 represents the plan of the mine, as revealed by exposure 

 upon the surface, and by the shafts and workings below. 



A, shaft which penetrated the most castwardly mass of ore; B, 

 shaft which reached the ore, but no indications at the surl'ace; C 



