329 
at 8°. The coal is situated at the head of a gully about a 
hundred yards north- 
west of the shaft mentioned in my previous Eeport. The following is a proximate 
analysis of this coal : — 
Per cent. 
Moisture 
2-2 
Volatile hydrocarbons 
... 22-8 
Vixod carbon 
... 510 
Ash 
... 24-0 
lOO'O 
The coal cakes well on coking. The ash is light-grey in colour. 
The coke was much 
swollen up, soft, and black-coloured. The coal is laminated and friable. 
“ The analysis of the coal from the shaft was : — 
Per cent. 
Moisture 
... 1-32 
Volatile hydrocarbons 
... mo 
Fixed carbon 
... 47-37 
•^sh ... 
... 31-61 
100-00 
The coke was hard and compact, and the ash of a slightly 
reddish-grey colour. 
The high percentage of ash is probably due to the samples, in both cases, being taken 
from close to the surface. 
“The freestone overlying the coal is of a good white colour, medium in grain. 
It lies in beds averaging about four feet in thickness. Some of the layers are too 
laminated to make a good building stone, but others are massive and hard, and 
would make a good facing stone, though it is perhaps too coarse for fine mouldings, 
hitone from this ridge, which runs across to the Logan, was used for building a 
chimney in the Logan Village about twenty-three years ago. The stone has withstood 
the weathering action of the atmosphere well. 
“ A borehole was put down on the Timber Eeserve, about two miles north of the 
liOgan Village, to a depth of three hundred and fifty feet. After passing through the 
Ipswich beds, the schists were struck in the bottom of the bore. No thick coal was 
met with. 
“ In the cuttings on the Eailway, between the Logan Village and Jimboomba, 
nothing but sandstones and shales are visible. Close to Jimboomba, the sandstone is 
thick-bedded and nodular. 
“In Goertz’s Selection (No. 20) about three miles south of Jimboomba, I was 
shown a bed of highly carbonaceous shale, containing streaks of coal, which had been 
mistaken for a seam of coal. 
“ The country in the neighbourhood of Tambourine consists almost entirely of 
brown sandstones. 
“ Prom Tambourine up to Lahey’s Mill, on Cunungra Creek, nothing but 
sandstone ridges and black-soil flats are traversed. The higher ridges on either side of 
the creek are capped with basalt ; while, six miles above the mill, the country is 
almost entirely of basalt. 
“ Mr. Paine accompanied me over a low gap in the Darlington Eange, where 
there is a break in the basalt, on to the heads of the Coomera Eiver. The country was 
all sandstone. 
“ On Back Pine Creek, there is a section of blue and black carbonaceous 
shale, with streaks of coal, overlying a hardened sandstone, and dipping south-west 
at 15°. 
