APPENDICES. 
-♦ — — 
APPENDIX I. 
AGE OF THE MOUNT ALBION AND CHILLAGOE BEDS. 
My Colleaguo leans to the opinion {See pp. 118-120) that these beds are equivalent to 
those of (he Palmer and Hodgldnson, which he provisinnallj refers to tlie Gympie Scries, but 
remarks on the paucity of organic remains. Mr. William Thompson, Government Minoral- 
ogical Lecturer, appears to have been more fortunate in the discovery of fossils, and says*:— 
t Iv ing to the alteration the limestone has undergone the fossil remains are generally 
so crystalline that beyond the outline nothing indicative of the original organic structure 
remains. Corals and encrinite stems are everywhere common, though, as a rule, very 
imperfect ; in pilacos, however, bands of rock exist containing remains more or less distinct, 
and from these several fossils have been derived. Amongst them are examples of Avieufo- 
feeten and Euomphalus, Cyathucrinus, Litliosirotion hasaltiforme, Zaphyentis, Cyathophyllum, 
and numerous ether corals. Two or three poor specimens of what appear to be small Triiobites 
and a fine example of an Annelid were also found. I would remark that these are named 
with reserve ; as I have no means of comparing them either with recognised specimens or 
diagrams.” 
_ The assemblage of fossils named by Mr. Thompson might be present in a Carboniferous 
deposit, but I have never seen Litliosirotion hasaltiforme in Australia, nor have I seen 
Cyathophyllum in the Queensland Permo-Carboniferous. Zaphrentis, however, does occur in 
the latter, as welt as close allies of Oyathocrinus. Allowing for Mr. Thompson’s “reserve ” in 
naming the fossils as he had done— a reserve which would be justifiable on the part of any 
Palajontologist without “means of comparing them either with recognised specimens or 
diagrams ’—the supposition of the Permo-Carboniferous age of the beds in question appears 
still to be the most probable. 
E 
APPENDIX ir. 
THE GLASSHOUSE MOUNTAINS. 
The difficulty of determining the nature of the rock composing these mountains is con- 
siderably increased by the conflicting testimony of various writers on the subject. Mr. Stutch- 
bury, in 1 854, regarded the rook as a “ metamorphic sandstone ” (See page 73). The Honourable 
A. C. Gregory [See page 5) referred to it, in 1879, as an “ outburst of porphyry.” Finally, 
the Pev. J. E. Tenison Woods, in 1888, in his Paper on the Desert Sandstone, t published 
a view of Prismatic Basalt, Glasshouse Mountains,” but without any reference in the text. 
Decently Mr. Henry G. Stokes has presented to the Geological Survey a series of 
specimens collected in the Mountains themselves, from which it appears that the staple rock is 
trachite, although it is possible that basalt or porphyries may be present as intrusive masses. 
The mountains are accordingly marked in the Geological Map as trachite. 
J. 
• APPENDIX III. 
ARTESIAN WELLS. 
Referring to the remarks on page 418, regarding the possible diminution of the supply 
from Artesian Wells, the Charleville Well furnishes some suggestive facts. 
In 1890 the pressure • per square inch had increased from 95 lb. to 100 lb., and the 
temperature was 10G° Fahr.J On 10th July, 1892, the pressure had decreased to 87 lb., and 
the temperature to 101°. The last-mentioned measurements were made by Mr. J. B. Henderson, 
Hydraulic Engineer, in my presence. 
^ 
* In Annual Report of the Department of Mines for 1891, p. 135. Brisbane : by Authority : 1892. 
t Proo. Roy. Soc. N. S. Wales. 
t Sec page 427. 
