243 
On formations of type (Z>) very little systematic work has been done of 
late years, but among former workings the Roberts lode, of the Old Llan- 
berris Company provided stone for crushing for twenty years above the 
400-ft. level, and this, from formations closely associated with the anticline.* 
Adjoining the Roberts lode workings on the north is the First Chance mine, 
and in this claim veins, &c., on the anticline and east of It have been 
exploited to a depth of 700 feet, paying dividends of over £&,ooo from a 
small tribute block. The Britannia United mine lies north-east of the 
First Chance, but a large cross-course near the boundary brings this same 
anticline into the Britannia United lease, and on this fold was worked 
Dunn’s lode, clearly a formation analogous to a saddle reef. 
The reefs associated with vertical slides, type (c), are numerous; they 
are invariably poor in gold, but veins and spurs crossing them are generally 
good, hence the verticals are used as guides on which to rise in order to 
pick up the auriferous veins. 
The formations classified as type (d), irregular spurs and veins, are 
to be found throughout the whole field, and occur as a necessary conse¬ 
quence of the twisting, faulting, &c., to which the field has been subjected. 
In places the veins are small and widely separated, in others they form 
stockworks, the whole of which pay for extraction and treatment. The 
indicator veins belong to this class, and vary considerably in size, at 
times veins under half-an-inch in thickness paying for extraction on The 
Indicator. 
Having reviewed the general structure of the field, it is only necessary 
to enumerate the main points in connexion with the mine under notice. 
The Britannia United shaft is sunk to its present depth in east-dipping 
strata, but at the bottom level the syncline, which has a westerly inclina¬ 
tion,, lies close to the shaft. The syncline also shows east of the shaft 
at the 720-ft. level. West of the syncline the favorable belt extends to 
Dunn’s lode, about 300 feet west of the shaft. A large leather-jacket, 
carrying a decomposed felsite dyke on the footwall with large bodies of 
solid stone and spurs, passed through the shaft at 560 feet from the 
surface, and has been worked to the present deepest level at 1,040 feet, 
but by no means exhausted. 
Only one series of centre country formations has as yet been worked, 
i.e., Dunn’s lode at the 720-ft. level; until quite recently between that 
point and the surface the quartz bodies on the anticline were left intact. 
During the last six months a rise on the anticline proved large bodies of 
stone to exist to the east, and one of these is now being worked with pay¬ 
able results about 50 feet above the 720-ft. level. This formation is 
exposed from 20 to 30 feet in width, with a thickness of from 2 to 5 feet, 
and has been followed for close on 150 feet. That other similar makes 
occur cannot be doubted, as the whole of the First Chance workings 
(to the south-west of the Britannia) lie east of the anticline and between 
the 700-ft. level and surface. The eastern cross-cut at the 720-ft. level, 
which was restarted on the advice of the Survey, proved a payable make 
of stone to exist in the cross-cut almost immediately after passing the 
eastern anticline. This, cross-cut is now being extended in country of 
highly favorable character, and the discoverv of stone in this direction 
increases the extent of the whole field. 
Veins crossing The Indicator were confined to the shallow levels, as The 
Indicator was not worked below its intersection by the leather-jacket. 
Comprised within the company’s lease is the old Sulieman Pasha shaft, 
from which over ^250,000 worth of gold was won. From information 
obtained I find that the lode there worked was of the leather-jacket type, 
* Lidgey. Report on the Ballarat East portion of the Ballarat Oold-fleld. Spec. Kept. Gcol. 
Surv. Viet., ! 894, p. 17. 
