172 
GEOLOGY. 
Specimens fromCape Thomson . 
No. 1. Carboniferous or Derbyshire lime-stone, from the upper part of cliff A. 
No. 2. Ditto with chert. 
No. 3. Chert alone. 
No. 4. Lime-stone containing product* and encrinites. 
No. 5. Ditto. 
No. 6. Calcareous shale, from contorted stratification, containing selenite. 
No. 7. Coralline lime-stone. 
No. 8. Lime-stone containing tubiporite. 
No. 9. Black shale and coralline lime-stone, passing into each other and alternating, 
containing crystals of carbonite of lime, selenite, &c. 
No. 10. Veins of carbonate of lime, carbonate of iron and blende, in compact lime- 
stone. 
No. 11. Balls of argillaceous iron-stone, found in the shale. — B. 
Many specimens of this lime-stone from Cape Thomson, are not distinguishable from 
the entrochal marble of Derbyshire, being almost entirely made up of fragments of 
encrinite. Many shells and corallines also appear to be identical with those of the 
Derbyshire lime-stone, e. g. the producta Martini, and other product*, the species of 
which cannot be accurately made out, from the imperfect state of the specimens ; there 
are also many specimens of the lithrostrotion, or basal tiform madreporite (Vol. II. pi. V. 
fig. 3 and 6. Parkinson’s Organic Remains : Columnaria of Goldfuss), and specimens 
of flustr*. 
Mr. Collie, in his notes, speaks of impressions of trilobites also in the argillaceous 
slate of Cape Thomson, but I do not find any remains of these animals in the collection 
made by Lieutenant Belcher. — Ed. 
To the north-west of Cape Thomson, the coast runs out by means of a low spit to 
the distance perhaps of twenty miles into the sea. The low point itself seemed to be 
acquiring almost a daily accession to the basaltic gravel of which the beach was in 
greatest part formed. I remarked large blocks of angular clink-stone, used about the 
huts for retaining their turfy thatch on them. A low and apparently diluvial shore 
extends from this spit for several miles, to a considerable river, and to a rocky cliff 
beyond it, which Mr. Elson found composed of basalt. — C. 
CAPE LISBLRNE. 
We again approached the coast of Cape Lisburne, and found the brownish grey and 
black strata of the cliffs to the south-west of it dipping south and west, at various but 
generally at considerable angles. The whole surface of the country back from the sea 
is raised several hundred feet above the level of the water, and diversified by saddle- 
backed hills, separated by wide valleys, conical eminences and perpendicular cliffs. 
The perpendicular rocks appear to be composed of mountain lime-stone, the acclivities 
of slate and shale. 
