comparatively small extent, and have not, perhaps from less 
complete observation, yielded antiquarian results of much 
consequence. 
In the east of England a characteristic form of the peat 
deposits occurs in the Fens of that region. These have 
yielded many relics of the stone period. 
In the western extremity of Cumberland, the River Ehen 
runs down from Ennerdale Lake, past Cleator to Egremont, 
and thence southerly almost parallel to the sea-coast, 
through which it breaks near Sellafield, along with the 
River Calder. 
For the last three miles of its course the Ehen has cut a 
considerable valley, with precipitous sides, through a moss 
of marine deposits of clay, gravel, and sands, and in pro- 
cess of time has levelled the bottom for a width of a quarter 
to half a mile, through which it now meanders. This level 
tract in its lower part nearest to the sea is characteristically 
called the Bogholes. It is in fact a typical instance of the 
low level river formation above alluded to. 
A precisely similar valley bottom lies in the remarkable 
depression which cuts off the headland of St. Bees from the 
higher land towards the east, running from Whitehaven 
southwards, past St. Bees to the sea-shore, where its water- 
course, called Pow Beck, debouches. 
Each of these tracts when excavated shews many prostrate 
stems of fair sized oak trees. Bog oak is to be found in 
great abundance below the sands at the mouth of Pow Beck 
and throughout the Bogholes. Mr. D. described and shewed 
a cast of a polished celt of greenstone found in a drain in 
this latter tract, and now belonging to Dr. Clark, of 
Beckermet. 
Between the Ehen River and the sea the marine deposits 
form an elevated promontory, generally pretty level, at a 
height of from 50 to 70 feet above the sea, known as Low- 
side Quarter. Above this table land are numerous isolated 
