8 MR. J. T. HOTBLACK ON STONES ON MUNDESLEY BEACH. 
ill what I shall say later about carnelians, these pink and red flints 
have nothing to do with those very different stones, but are just 
flints and nothing more, and I think that we need only visit the 
present red chalk, or marl, or gault, or whatever it is (for it has 
been very much discussed and variously described), at Hunstanton 
to see that they need not have come very far, and probably they 
have not come far, for Mr. Jesson, of the Danish Geological 
Survey, states that the pink flints of the English Drift are not 
known in Denmark, which I think proves that they did not come 
like so much else in the drift, from the farther North. 
There is yet another source from which some of the flints have 
come, including, perhaps, a few of the red or pink, the iron pan 
of what is known as the Forest-bed, of which there are several 
exposures at Mundesley, and about which 1 shall have something 
to say later in this paper. 
Having disposed of the flints which are, as it were, native to 
the district, we come to a vast assortment of rocks which are 
quite foreign to this part of England, some of them such as the 
well-known rhomb-porphyry, being almost certainly of Scandinavian 
origin. 
What an assortment of these rocks, either foreign or from the 
North of England or from Scotland, do we find. 
There are the granites to represent the Plutonic or oldest rocks 
in such variety that it seems quite impossible to say whence 
they may all have come or how far they must have travelled. 
Then we have the Metamorphic Rocks represented by the 
gneiss, mica-schist, and hornblend-schist, all of which have come 
from the country north of the Forth and Clyde ; much of the 
quartzite, of which there are so many specimens, and which, being 
native to so many districts, we cannot at all say how far they may 
have come, also belongs to this series. 
Then there are the Trap Rocks, represented by basalt, greenstone, 
serpentine, porphyry, &c., in considerable variety. 
How have all these igneous and volcanic rocks come here, for it 
is certain that there is not, and never was since the earliest ages of 
the world, an outcrop of any one of them within many miles 1 
We must go at least beyond the region covered by the chalk for 
such an outcrop to be possible. 
There are two agencies which I know of, and of these the one 
