Lesley.] OO [Jan. 2 and Feb. 6, 



wall of the excavation, see fig. 11, which is 180 yards long, by 40 wide on 

 an average, and shows nothing but wash ore in its banks. Its very ir- 

 regular depth may be called 10 yards ; water standing in the floor. 



This cut was worked to a depth of 40 feet during seven years, and 

 yielded richly. The first maps are lost. Mr. Bocking's underground 

 works on the north wall, commenced in 1865, are represented by his 

 Local Map, fig. 12, and thus described by him : — 



An old whin shaft was pumped out, and pillars robbed. The galleries 

 then caved in, and work stopped. Ore can still be reached from other 

 shafts, two of which are timbered. One body of ore lies between the old 

 cut and the underground works. It is not very rich, but is "good 

 natured, ' ' and mixes well with more refractory ores. Another body of 

 good rich ore remains standing to the deep of the works, and has a heavy 

 covering. Another body of very good ore, fifteen feet thick, occupies a 

 trough below the level of the pump-shaft, estimated at say 500 tons. 

 Shaft 5 has ore around it. Shaft 4 is in a fair vein of rock ore. The 

 deposit at shaft 3 is variable, and part of it stands. Old cvits and pits 

 show that the deposit runs on southwestward. 



That the ore extends northwards is shown by the late railway cutting 

 200 yards north of the open cut (see fig. 10), where ten feet of wash ore 

 is seen overlying white and red clays. 



Seventy yards southwest of the main open cut is another, 110 yards 

 long, 15 wide, and 8 deep (13,200 cubic yards), nothing now showing but 

 wash-ore in the side walls. It was originally much deeper, slides having 

 partially filled it. 



Three hundred yards west of the main open cut is the Old Phillips 

 Bank, 100 X 30 X 6 yards (18,000 cable yards), full of water. It was 

 once deep, and drained by a tunnel, the mouth of which is shown on the 

 Map (fig. 10), 140 yards from its west end. 



Calling the length of ground occupied by these three open cuts, with 

 their imperfect underground workings, 400 yards, and its breadth 100 

 yards, and assigning an average depth of ten yards for wash and lump- 

 ore, we get an original mass of 400,000 cubic yards, one-half of which 

 may be considered rich and accessible enough to work to advantage. 



But it must be considered that this Pennington Range of deposits 

 shows a much stronger tendency to develop lean layers and sandy masses 

 than the Dry hollow, Red, or Gratesburg Ranges, hereafter to be described. 

 Estimates of workable quantities are, therefore, hazardous. We are here 

 geologically at the bottom of the limestones, and close on the top of the 

 " calciferous sand-rock " formation, which accounts for the tendency to 

 sand-rock and sandy ore exhibited in these banks. 



Of the old Phillips bank Mr. Bocking says that it holds purplish easy 

 smelting ore, mixed with clay, and without discernible regular veins. 

 Quantities of wash- ore can be got here ; but dry screening is impractica- 

 ble. 



This gives the key to the problem of the future. The near presence of 



