50 
Tara range terminates. The strike of this quartz lode is about east and 
west, and its thickness is about 5 feet. The country rocks are ash beds 
of Devonian age. This lode is said to carry a little gold; it has not been 
much prospected. Close by is the boundary between the ash beds of 
Devonian age and Ordovician sandstone and slates, with much quartz strewn 
over the surface. A little prospecting has been done in these beds, and 
gold is reported to have been found. These rocks stretch in a belt for 
many miles, and are well worth a trial for gold. 
[Report sent in igth August , 1905.] 
THE GOOD HOPE SILVER MINE, NEAR BUCHAN. 
(no. 22 on locality map.) 
By E. J. Dunn , F.G.S., Director , Geological Survey. 
About 2 miles south from Dr. Mackieson’s house is the old shaft of the 
Good Hope Silver Mining Company, but I could obtain no particulars as 
to the results obtained. The rocks here are Devonian sandstones, studded 
with brachiopods. About half-a-mile further to the south the lode crops out 
on the southern bank of the creek, as a ferruginous gossan. On the western 
side of the shaft at the Good Elope the lode consists of ferruginous quartz 
at the surface. These workings were in search of silver, but I cannot obtain 
any account of the results achieved. 
Near Sandy’s, allot. 47, Parish of Nowa Nowa, and just south of the 
fence, is a lode of barytes, 3 feet thick. It is in ash beds, and does not 
appear to continue far. Limestone occurs close to the road on the eastern 
side of Sandy’s, and limonite a little further to the north-east, but 
apparently not in large quantities. 
At the schoolhouse, South Buchan, is an outcrop of Tertiary drift, in 
which are large boulders of red jasper, &c. These jasper boulders are 
probably derived from Heathcotian beds in the neighbourhood. 
From the variety of rocks and minerals met with, this tract of country 
promises to be productive later on of useful materials, such as limestone, 
ironstone, barytes, &c., and its geological features deserve to be traced 
out. Especially from the Heathcotian rocks valuable minerals may be 
expected, and probably good mines will be worked for ores of many kinds 
in these ancient beds. 
For much kindness and hospitaiitv, and assistance, in visiting the 
surrounding country, I am indebted to Dr. Mackieson, and to Mr. W- 
Mackieson, of South Buchan. 
\_Report sent in 19th August , 1905.^ 
THE CALEDONIA GOLD MINE, WARRANDYTE, NEAR 
MELBOURNE. 
(NO. 23 ON LOCALITY MAP.) 
By E. ]. Dunn , E.G.S., Director , Geological Survey. 
Warrandyte is 18 miles north-east from Melbourne, and the mines one 
mile by road, or half-a-mile direct, north-east from the toivnship. An 
engine shaft, 12 feet by 4 feet, has been sunk to a depth of no feet to 
the level, and a well is being sunk another 20 feet. Baling is done by 
means of a steam winch and vertical boiler. In sinking this shaft 30 feet 
of alluvial ground was first encountered; then about 30 feet of altered 
