1870.] HARKNESS—WASTDALE-CRAG BLOCKS. 521 
intersect the area of distribution, one of which, that of the Lyven- 
net, is comparatively small, and runs nearly from south to north to 
beyond Cliburn, where it joins the Eden; the other is a wide vale, 
having little high ground on its west side, but on the east it is 
margined by the Pennine chain. The course of the Eden in West- 
moreland is from S.E. to N.W. 
In the areas drained by the Lyvennet and the Eden, the occur- 
rence of Wastdale-Crag boulders varies according to locality. The 
Lyvennet has its origin in Crosby Ravensworth Fell, at a spot a 
little more than a mile N.W. of the town of Orton. Here granite 
blocks are abundant, and they are also common in the neighbour- 
hood of Orton, but not to the same extent as on Crosby Ravens- 
worth Fell, and south of Orton they are comparatively rare. North 
of Crosby Fell they become very common, being seen in great 
quantities near‘ the villages of Crosby Ravensworth and Maulds 
Meaburn, on the Lyvennet. They are also common about the vil- 
lage of Reagill, but not so abundant as to the south thereof. Be- 
tween the portion of the country just alluded to and the western 
margin of their distribution, they occur in enormous profusion, and 
it is in this district that they are found in the greatest abundance. 
Following the valley of the Lyvennet northward, we find them 
comparatively rare north of Reagill. They are, however, to be met 
with between that place and Morland, a village about three miles 
further north, and also in the country to the east thereof. North 
of Morland they are rarely seen, but, as before stated, they can be 
recognized in the walls of the farm-buildings at Cliburn, 14 mile 
still further northward. 
In the valley of the Eden, which is further removed from their 
original source than the Lyvennet, they are not so profuse in their 
occurrence. It has already been stated that they are unknown in 
this valley as far.south as Kirkby Stephen; and it is immediately 
north of the river Bela where they are first recognized. The buildings 
at Brough Sowerby furnish them in considerable quantities, and 
some are here also to be seen on the surface. A few occur near 
Brough itself, and they are abundant near the village of Great Mus- 
grave. The neighbourhood of Warcop exhibits them in consider- 
able profusion, but north of this they begin to become rare; they 
can, however, be found in the country round Appleby, and are 
occasionally seen in the walls. 
From Appleby northwards their occurrence is uncommon. There 
are, however, a few spots near Kirkby Thorpe and Temple Sowerby 
which afford them; and, as before mentioned, Professor Philips 
has recognized them as far north as Long Wathby. 
In the valley of the Eden, the area of their greatest distribution 
has a W.S.W. and E.N.E. course, and passes between Great Mus- 
grave and Warcop. This area, if extended westwards into the val- 
ley of the Lyvennet, and from thence to the parent source of these 
blocks, would give us the region of their greatest distribution, be- 
tween the valley of the Eden and Wastdale Crag. If we extend 
this area eastwards from the valley of the Eden, it would mark the 
VOL, XXVI.—PART I. 2P 
