Mines and Mineral Statistics. 
145 
No. 27. A specimen of wash-dirt from tlie Sugar-loaf Mountain, 
near Kangaroo Flat, Strathbogie, the property of Hall, Bros, 
and Company. (See Xo. 21.) 
No. 28. A sample of stream tin from the deep lead worked in 
O’Daly’s Claim (The Vegetable Creek Tin Mining Company), a 
full account of Avhich I gave you in my report on the Vegetable 
Creek Mines, of the 1st February.) 
No. 29. A sample of tin cement, as formed on top of the 
staniferous wash in O’Daly’s claim, and in som.e parts of the 
lead is four feet thick. 
No. 30. A specimen of wash-dirt from O’Daly’s claim. This 
piece was knocked out of the bottom of wash-dirt, and gives you a 
good idea of how thick the tin lies in this lead. 
Iron. 
The iron ores exhibited are principally from the deposits near 
Wallerawang, discovered by Mr. 11. AVinters, and now the pro- 
perty of the AFallerawaug Iron and Coal Company ; from the 
Lithgow A^alley Iron Mine at Eskbank, on the AVestern 
Hailway line ; and from Berrima, on the Great Southern Eail- 
wav. 
The AFallerawang Alines have been reported on by Professor 
Liversidge, of the Sydney University, whose analyses of the ores 
are fully given in his paj^er lately read before the Eoyal Society, 
and now republished. The ores consist of Alagnetitc averaging 
40'89 per cent, of metallic iron ; Garnet ironstone, containing 
20 per cent, iron ; Brown Ha'matite, 38’S4 to 51‘52 per 
cent, iron; clay bands, 4-9*28 to 5G per cent. iron. The 
magnetic ore sometimes associated M'itli tlic garnet rock occurs 
in large irregular masses in altered Devonian sandstones near 
their junction with granite. The brown luTmatite forms a vertical 
lode in Devonian shales. The clay bands (brown hoematitc) of 
which five have been counted, average in tliickness from (5 to 18 
inches ; they are inter-stratified Avith the coal measures im- 
mediately above the principal or lowest coal seam. Concre- 
tionary nodules of this ore lie scattered in considerable quantities 
on the sides of the rugged ranges where the clay bands outcrop. 
About two miles south-west from the coal mines and between it 
and the haematite and magnetic ore deposits, is abed, about thirty 
feet thick, of brcceiated marble limestone embedded with Devonian 
slates, so that within a radius of four miles Nature here presents 
the materials, iron-ore, coal, and limestone, for iron smelting. 
Si At Alt. Lambic other out-crops of Alagnetite with Alicaecons 
iron occur in altered Devonian beds near the granite, as on tlie 
AV'allerawang estate. The positions of these are all shown on 
my geological map of that district. The Lithgow Valley Iron 
Smelting Company propose to use the Alt. Lambie ore with 
G 
