S84j Professor Jameson’s Account of the 
dant are sandstone and granite ; the next, in frequency, are clay« 
slate and gneiss ; and the rarest is greenstone. The strata in ge- 
neral have a direction from E. to W. that is, across the pe- 
ninsula. The southern and middle parts of the peninsula have 
been very imperfectly examined. Captain Basil Hall, in an 
interesting account of* some mineralogical appearances he ob' 
served near Cape Town, published in the Edinburgh Philo- 
sophical Transactions, remarks, that the same general structure 
and relations seem to occur all over the peninsula as in the 
mountains around Cape Town. More lately Captain Wauchope, 
an active and enterprising officer, pointed out to Mr Clarke 
Abel a fine display of stratification in a mountain that faces 
the sea, in the neighbourhood of Simon’s Bay. The following 
is the description, as given by Mr Abel : The sandstone, 
forming the upper part of the mountain, is of a reddish colour, 
very crystalline in its structure, and approaching, in some spe- 
cimens, to quartz rock. Immediately beneath the sandstone is 
a bed of compact dark red argillaceous sandstone, passing, in 
many places, into slate of the same colour. This bed rests up- 
on another of very coarse loosely combined sandstone, resem- 
bling gravel. Under this is another layer of* dark red sand- 
stone, terminating in a conglomerate, consisting of decomposed 
crystals of felspar, and of rounded and angular fragments of 
quartz, from the size of a millet seed to that of a plover’s egg, 
imbedded in a red sandstone base. Beneath the conglomerate 
commences a bed, which I at first took for granite, and which 
is composed of the constituents of granite in a decomposed state, 
intermixed with green steatite, and a sufficient quantity of the 
dark red sandstone to give it a reddish hue. The felspar of 
the bed is decomposed, and exactly resemble that of the conglo- 
merate above it. The mica seems, in a good measure, to have 
passed into steatite. The quartz is in small crystals, frequently 
having their angles rounded. This bed is several feet in thick- 
ness, and gradually terminates in the granite ; but the precise 
line of junction I was unable to trace. The appearances, then, 
were in the follovdng order : 
1. Horizontally stratified sandstone. 
Bed of compact dark red sandstone, passing into slate. 
3. A bed of coarser sandstone, resembling gravel. 
