18i 
THE GEOLOGIST. 
Scotlaud, the author proceeded to describe the m orks of art which had 
been found in it. From their occurrence in beds of elevated silt and sand, 
containing layers of marine shells, it was evident that the change of level 
liad been effected since tlie commencement of the human period. The 
character of the remains likewise proved that the elevation could not be 
assigned to so ancient a time as the Stone Period of the archaeologist. Tlie 
canoes which had from time to time been exhumed from the upraised 
deposits of the Clyde at Glasgow clearly showed that at the time when at 
least the more finished of them were in use, the natives of this part of 
Scotland were acquainted with the use of bronze, if not of iron. The 
remains found in the corresponding beds of the Forth estuary likewise 
indicated that there had been an upheaval long after the earlier races had 
settled in the country, and that the movement was subsequent to the 
employment of iron. From the Firth of Tay similar evidence was adduced 
to indicate an upheaval possibly as recent as the time of the !Roman occu- 
pation. The author then cited several antiquaries who, from, a considera- 
tion of the present position of the Eoman remains in Scotland, had inferred 
a considerable change in the aspect of the coast-line since the earlier 
centuries of the Christian era. He pointed out also several circumstances 
in relation to tliese Roman relics, which tended to show a change of level, 
and he referred to the discover}^ of Eoman pottery in a point of the raised 
beach at Leith. The conclusion to which the evidence led him was, that 
since the first century of our era the central parts of Scotland, from the 
Clyde to the Forth and the Tay, had risen to a height of from 20 to 25 
feet above their present level. 
April 2, 1862. — The following communications were read : — 
1. '* On some Eemains of Chiton from the Mountain-limestone of York- 
shire." By J. W. Kirkby, Esq. 
These remains consist of eight separate plates of four species of Chiton, 
found by Mr. Burrow, of Settle, in the Lower Scar Limestone of that 
neighbourhood. These new species, determined by Mr. Kirkby, are 
Chiton Buri'oiL'ianus, Kirkby, Ch. coloratus, Kirkby, two species unde- 
termined, and a trace of ChitoneUus {?). These appear to be the first 
Chitons observed in the Carboniferous limestone of England ; but fourteen 
others, and a ChitoneUus, have been found in strata of the same age in 
Belgium and elsewhere, and have been described by Miinster, De Koninck, 
and De Eyckholt. 
2. " On some Fossil BeptiUa, of the Order GanocephaJa, from the 
Coal-measures of the South Joggins, Nova Scotia." By Professor Owen, 
F.E.S., F.G.S. 
The specimens described in this communication were (together with 
remains of Xylohius and Pupa) obtained by Dr. Dawson, F.G.S., in 1861, 
from two fossil stumns of trees, and were referred to in his communication 
read before the Society on November 6, 1861. Professor Owen has deter- 
mined among the specimens submitted to him the following small Eeptilian 
forms — Hylonomus Lyelli, Dawson, S. aciedentatus, Dawson, H. Wy)7iani, 
Dawson, Hylerpeton Dawsoni (nov. gen. et sp.), Owen, and Dendrerpeton 
Acadianum, Osven. 
3. " On the Occurrence of Mesozoic and Permian Faunae in Eastern 
Australia." By the Eev. W. B. Clarke, F.G.S. 
Mr. W. P. Gordon having been requested by the Eev. W. B. Clarke to 
search for fossils in his neighbourhood (between the Balonne and Maranoa 
Eivers) and in the Fitzroy Downs, Queensland, was successful in making 
a large collection of specimens at the Wollumbilla Creek. These he sent 
to Mr. Clarke, who forwarded them to Professor M'Coy, at Melbourne^ 
