436 ON THE SUPERFICIAL STRATA, 
c, Stratum of red sandstone. 
Alveus of Forth. 
Carse-elay resting on sand and gravel. 
fif-. Red sandstone, as supposed. 
The Map contains a general delineation of the boundaries 
of the carse-claj, gravels, and old red sandstone. 
Sp. 23. consists of carse-clays. The lamellar is from the 
section on the Teath, near its junction with the Forth. Si- 
milar appearances are presented at other points y the thin 
filmy layers of clay, with still thinner of fine quartz-sand 
interposed, admitting of separation, when recent. The ex- 
terior boundaries and relations of the tills have not yet been 
fully examined. 
^Sth October 1823. 
those of Strathearne ; towards the left, the Grampian range of mountains 
crowns the prospect, here presenting their boldest front. la very clear wea- 
ther the eye penetrates into the dark -blue and deep recesses of their many 
narrow glens, contemplating every feature of their varied, erect, and magni- 
ficent forms, so closely grouped as to suggest the idea of an immense /orest 
of mountains-) rather than the more common and cumbrous aspect of hills, and 
particularly when then: lofty summits, elevated from 3000 to 4000 feet 
above the valley, are capped with snow. 
On the right, are Stirling Castle, and the finely shaped Ochils, whereof 
Dunmyat, the most westerly, has been justly noted for its fine prospect, ah 
t]iough probably in some respects inferior to this. 
