130 
nearest outcropping Ordovician rock to tke survey south of the Werrihee 
is at the end of the Brisbane ranges, near Bowsley, and this is 9 miles 
from the Ordovician rocks marked on the sketch map on the north 
of the Werribee Biver, parish of Djerriwarrah. There may be a defined 
river channel in between, but it is more probable that marine or estuarine 
deposits rest on the bedrock, and any gold contained in the gravels 
would be too widely distributed to be payable. To offer a more decided 
opinion on this question, a more extended examination of the country 
to the north and north-west would be necessary. 
Caves. 
In the parish of Parwan, about half-a-mile to the south-east of the 
Parwan Bailway Station, there is a small cave. The opening is small, 
and the entrance is almost vertical for a few feet. On exploration, the 
cave was estimated to be about 20 ft. below the surface, and about 
150 ft. in a horizontal direction. The air in the cave was light, and 
with a candle I could find no sign of a draught, indicating a passage 
leading from the chamber. The only rock noted was basalt. I am 
inclined to think that the cave was formed by subsidence, as there is a 
slight hollow at the surface; and below, some large blocks of basalt are 
broken across. There are no stalactites to be seen. 
[26.3.12.] 
SOME MmES AT DAYLESEOBD. 
By H. S. Whitelaw, Field Geologist. 
The Loed Boberts Mine. 
The reef now known as the Lord Boberts, situated miles south¬ 
west of Daylesford, was discovered by one Stevens over thirty-five years 
ago, and worked by him from the surface to 40 ft. in depth. Mr. 
Gilbert, manager of the Lord Boberts mine, informs me that after 
400 or 500 tons had been crushed from the reef for an average return 
of half-an-ounce to the ton, it was abandoned owing to water troubles. 
LTo further work was done on it until about sixteen years ago, when 
a sum of £200 was granted by the Government, under the provisions of 
the Mines Development Act, to C. Yaples, who extended the old work¬ 
ings southwards, and proved that the payable run continued in that 
direction, but pitched under water at a point about midway between 
Stevens’ shaft and the present Lord Boberts’ shaft. The last crushing 
broken by ISTaples, Mr. Gilbert states, was one of 25 tons, which yielded 
13^ oz. A little over two and a-half years ago the Lord Boberts Com¬ 
pany was formed to work the reef below water level. A double 8-in. 
winch, a vertical 10-ft. by 5-ft. boiler, and 40-ft. wooden poppet-heads, 
with gear complete, were purchased and erected, and a 10-ft. by 4-ft. 
