103 
across the countrv-rock, which also' dips W. The country consists of red 
and yellow soft sandstones and mudstones. The thickness of these small 
parallel reefs is stated to be from 6 inches to i foot, and the quartz to 
yield 2J ozs. of gold per ton. Two of the shafts are nearly 100 feet 
deep; the others are much less. Messrs. Cooper (father and sons) have 
been continuously working here for the past twenty-five years, and state 
that £ 6,000 worth of gold has been obtained from the shallow ground 
so far worked. 
The Great Eastern Reef. 
The Great Eastern reef is about 2J miles to the north of Rutherglen. 
The rich claims formerly worked bv Messrs. Harris and Hollow were on 
this line, and they are said to have obtained ,£63,000 worth of gold* from 
their workings, which only extended to shallow depths. Within the last 
few years the line of reefs (for there are two parallel reefs about 80 feet 
apart) has been traced southward for several chains beyond where for¬ 
merly worked. The western reef is considered to be the richer. 
North of the old workings, the reef has been traced for many chains, 
and into the private propertv of Mr. Carl Butcher. Dr. Harris, of 
Rutherglen, has erected a plant on this property, and sunk a shaft, and 
obtained crushings from the reef, which here ranges from 6 inches to 
4 feet in thickness, and yields from 8 dwts. to 18 dwts. of gold per ton. 
The strike of the reef is N. 30 deg. W., and the dip W. 76 deg. This 
appears to be one of the best-defined reefs in the vicinity, and it should 
be still further tested in depth, and along its course. 
[. Re-port sent in 1st May, iqo6.~\ 
TIN ORE ON WILSON’S PROMONTORY. 
(no. II on locality map.) 
By E. J. Dunn, F.G.S., Director, Geological Survey. 
Mr. T. E. Williamson, Inspector of Mines, has left a sample of tin ore 
(cassiterite), which is stated to be from Wilson’s Promontory. This tin 
oxide is black in colour for the most part, but transparent red particles also 
occur (ruby tin). In size the grains range from half-an-inch long to fine 
sand. The sample is well water-worn, and it was probably obtained at 
some distance from its original source. It is of high quality, and a very 
valuable mineral, owing to the high price of tin, which has reached the ex¬ 
traordinary value of £,162 per ton. 
It is noticeable that the granite of the Strathbogie Range, where tin ore 
has been reported to occur; the granite tract around Marysville, in which tin 
ore has been, and is still being worked in alluvial ground; the tract of 
granite in which the southern branches of the Yarra rise, and in which al¬ 
luvial tin ore was worked at Beenak, and the granite of the Promontory, 
where tin ore also has been reported as occurring at different points, are all 
probably connected beneath the stratified rocks with one another, and with 
the granite of Flinders Island and the rich tin-bearing granites of the 
northern and eastern portions of Tasmania. 
In view of the abnormal!v enhanced value of tin ore, the granite areas 
specified are well worth the attention of prospectors, the more so because 
a proportion of tin ore in the wash that a few years ago would have been 
worthless, is now highly remunerative. As to whether such high values 
