136 Geological Society. 
and the Coniston flags form an important group as much as 1200 or 
1400 feet thick, and correspond with the Denbigh flags of North 
Wales and the Wenlock shale and limestone of the Silurian system. 
The Ireleth slate and grits succeed and occupy a considerable space, 
and must be of very great thickness. These higher beds in Cumber- 
land abound with Terebratula Navicula, but above them are remark- 
able bands with Astevias, while the upper portion is full of fossils, 
the prevailing type of which is Upper Ludlow. 
April 2.—A paper was read by Mr. Austen, “On an Aérolite 
said to have fallen near Lymington, Hants.” 
A paper was also read by Capt. Bayfield, R.N., ‘‘On the Junction 
of the Transition and Primary Rocks of Canada and Labrador.” 
April 16.—A paper was read by Mr. Macintosh, ‘‘ On the Sup- 
posed Evidence of the former existence of Glaciers in North Wales.” 
Mr. Macintosh combated the opinion of Dr. Buckland as to the 
origin of scratches and grooves on various rocks, referring these ap- 
pearances, in many cases, to structural phenomena. 
April 830.—A paper was read by Mr. Murchison, ‘ On the Pale- 
ozoic Deposits of Scandinavia and the Baltic provinces of Russia, 
and their relations to Azoic or more ancient crystalline rocks, with 
an account of some great features of dislocation and metamorphism 
along their northern frontiers.” 
In this paper Mr. Murchison gave a general outline of the result 
of his recent examination of Northern Europe, and the conclusions 
to which he has arrived, chiefly with reference to the classification 
of a large tract of country before undescribed on a large and compre- 
hensive scale. 
May 14.—An extract was first read from a letter by Dr. A. Ges- 
ner, ‘‘ On the Gypsiferous Red Sandstone of Nova Scotia.” 
A paper was read by Mr. Austen, ‘On the Coal Beds of Lower 
Normandy.” 
The chief object of the author was to describe the actual geolo- 
gical position of these small basins, and suggest that they might 
rather be of the Permian than the true Carboniferous period. 
Dr. Mantell read a paper, entitled ‘* Notes of a Microscopical Ex- 
amination of the Chalk and Flint of the South-east of England, with 
remarks on the Animalcules of certain Tertiary and Modern Deposits.” 
This paper is given entire in our present Number, p. 73. 
A paper was read by Mr. Bowerbank, ‘“‘ On some specimens of 
Pterodactyl recently found in the Lower Chalk of Kent.” 
May 28.—A communication was read, “‘On the Geology of Lycia.” 
By Prof. E. Forbes and Lieut. Spratt, R.N. 
The authors stated, that the rock forming the greater part of Lycia 
consists of the scaglia, or Apennine limestone, a series not very di- 
stinctly defined, and that near the river Xanthus another rock of 
greenish sandstone, whose age was not determined, rested conform- 
ably on the scaglia. In other places true tertiary beds, both marine 
and freshwater, overlie the scaglia ; and of these the marine are the 
most ancient, and, from the fossils which occur in the different beds, 
they are found to be all of the same age. The authors then described 
