4 
SHEPPARD : INTER-GLACIAL GRAVELS OF HOLDERNESS. 
Occasionally pebbles are cemented together, though in smaller 
masses, by a calcareous cement. The stones in this case have a 
coating of lime, which has in all probability been derived from the 
weathering of chalk or other limestone boulders above. As, however, 
the chalk and other pebbles in this pit have a very fresh appearance, 
I was at first disinclined to regard this explanation as satisfactory, 
until recently, when searching above one of these clusters of lime^ 
coated stones, I had the fortune to find a boulder of chalk in a 
partially dissolved condition. 
Now with regard to the stones : we have here as great a variety 
of rocks as could be hoped for in so small an area. The gravel 
consists mainly of small stones, varying in size from that of a pea to 
that of an egg ; the larger boulders are generally found in layers, 
both pebbles and boulders in nearly all cases being well rounded. 
There are several boulders of gneiss, granite, &c., used as curbs, 
in the village of Burstwick ; no doubt some of them have been 
obtained from this pit. The following is a list of the rocks found 
here, in order of prevalence, those at the latter part of the list 
occurring only occasionally : — 
Chalk and Flint (British, with Belemnitella quadrata). 
Lias (with Ammonites communis and Gryphse incurva). 
Ironstone ( ? Liassic). 
Black Flint (Foreign). 
Pink Flint (Danish). 
• Carboniferous Limestone (Teesdale). 
Brockrarn (Permian conglomerate, from Vale of Eden). 
Porphyrite (from Fredericksvaarn). 
Quartz-porphyry (Armboth dyke). 
Basalt (Teesdale). 
Quartzite. 
Rhomb-porphyry (Norwegian). 
Red Granite (Norwegian ?). 
Gneiss (Norwegian ?). 
Lava (Lake District). 
I have not yet been successful in finding a piece of Shap Granite 
here, nor can I find any record of its having been noticed. - - — 
