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saddle-shaped quartz deposit is to be seen on one of the contortions, and 
at the north end of No. 3 level a vein of quartz has been worked for 
about 60 feet arfound another one. At both places the quartz was un¬ 
payable. At lower levels similar features can be seen. At No. 8, 180 
feet south of the main cross-cut, the saddle-shaped form of a small for¬ 
mation is clearly seen to be due to ; twisting; it occurs between the head- 
and foot-walls of the Rotten reef. 
Black or Sebastopol Reef. 
This reef is supposed to be the northward continuation of the famous 
Lord Nelson reef. It runs roughly parallel to the Rotten reef and 
about 320 feet to the eastward of it. It is composed generally of bluish 
quartz, but, in places of the crushed country through which it passes; this, 
where it is a carbonaceous slate, exhibits a blue-black appearance which 
has obviously suggested the name of the reef. It is comparatively small 
in itself (the conditions for ore deposition seem to have been more favor¬ 
able in the fractured rock on the foot-wall side, and the Black reef 
perhaps served as a channel for the percolating waters), but associated 
with it on the eastern or fcot-wall side is a massive spurry formation called 
the Sebastopol reef on which a large amount of work has been done. 
Most of the work was carried on by means of a large open cut, and, if 
one may judge from the amount of work and the thorough manner in which 
it was done, the shoot of gold worked from the surface to 200 feet was 
a rich one. 
At the surface the shoot was about 35 feet in length and 20 feet in 
width. In depth it gradually shortened and narrowed, till at 206 feet 
it was only about 20 feet in length and 2 feet in width and was not pay¬ 
able. This formation on the eastern side seems to have no definite limits ; 
it is situated in a much fractured zone bounded on the west by the Black 
reef and on the east by the Armenian reef. Between these two the 
country consists mainly of sandstone and irregular deposits of more or less 
auriferous quartz. One block of this having better withstood weathering 
than the surrounding country, now forms the crest of Sebastopol Hill. It 
is known as “The Pinnacle,” and is a marked topographic feature of 
the district. The Lands Department has reserved a quarter acre of land 
surrounding it. The downward continuation of the Black reef has been 
cut in the No. 8 crosscut at 90 feet west of the main shaft. Here it is 
composed chiefly of silicified country rock between polished walls of 
carbonaceous slate. To the eastward of the reef channel—where the 
downward continuation of the Sebastopol reef should be found—the 
massive sandstone beds contain quartz spurs, but not in such profusion as 
on the surface. The longitudinal section shows that to get under the down¬ 
ward continuation of the shoot worked from the surface in the Sebastopol 
reef formation it will be necessary to drive northward on the Black 
reef. 
Queen Zimmerimas Reef. 
The position of this reef is to the west of the Rotten reef. It 
has not been worked by the Lady Nelson Company, but is mentioned 
here as the manager of the Lady Nelson mine (Mr 1 . T. Cornelius). 
