98 Geological Society of London. 
Changes in the relative level of land and water, in the estuary of 
the Clyde, are indicated by facts described in another paper by Mr. 
Smith of Jordan Hill, near Glasgow. Superficial deposits, in which 
a great number of marine shells of recent species are imbedded, are 
found on the banks of the Clyde below Glasgow, at the height of 
thirty or forty feet above the sea. I had myself an opportunity of 
verifying during the last summer several of these observations of Mr. 
Smith, and found equally clear proofs that the Island of Arran had 
participated in the upward movement, so that a circle of inland cliffs 
_ may be traced all round that island, between the base of which and 
the present high-water mark a raised beach occurs, and in some 
places beds of marine marls, formed of recent shells, as in the bay of 
Lamlash. Mr. Smith has also traced sea-worn terraces on each side 
of the Clyde below Dumbarton and between the Cloch Lighthouse 
and Largs. 
We are indebted to Sir Philip Egerton for some new details re- 
specting. the shelly gravel of Cheshire, of which he had previously 
treated; and to Mr. Murchison and Prof. Sedgwick for a joint pa- 
per on “a raised beach in Barnstable Bay on the northwest coast 
of Devonshire.” ‘This beach puts on for several miles where it is 
best exposed, the form of a horizontal under terrace resting upon an 
indented and irregular surface of the older formations. It presents 
a cliff towards the sea, in which beds of calcareous grit, sandstone, 
and shingle are seen perfectly stratified. ‘The bottom of the deposit 
is chiefly composed of indurated shingles resting on the ledges of the 
older rocks, and filling up their inequalities. ‘Through the whole 
cliff, but especially in the indurated grits, shells are abundantly dis- 
persed, identical in species with those now living on the coast, and 
well preserved, though sometimes water-worn. 
The authors point out that these beds cannot have been formed 
by accumulations of blown sand. ' They demonstrate an elevation of 
the coast during the modern period ; and there are phenomena both 
on the north and south coasts of Devonshire and Cornwall, which 
afford proofs of modern changes in the level of the land, both of 
upheaval and depression. The raised beach of Hope’s Nose, cor- 
rectly described by Mr. Austen, is the most striking instance in 
South Devon. 
* The quantity of rise of land in the modern period is from ten to 
forty feet in South Devon and Cornwall, nearly seventy feet in North 
Devon, while in Lancashire, Cheshire, and Shropshire there are 
