304 



KEY. E. HILL ON TRANSPORTED BOULDER OLAY. [May 1 896, 



is bent up, and both ends thin out ; it is only 6 feet below the 

 top of the cliff, and there is a layer of large flints above. In the 

 masses at League Hole there are signs of slipping, yet here also 

 there is sand overlying them, which I could not distinguish from 

 the adjacent Mid-Glacial sand. 1 Along the beach, among the masses 



Fig. 3. — Section in the little headland, near League Hole. 

 {Diagrammatic.) 



Loam pbout I'/zfeet 



about I'/z feet 

 gravel 



Sand 



B.C. only just seen 

 under slip. 



[Looking west.] 



BC = Boulder Clay. S = Sand. 



fallen from the cliff, pieces of Boulder Clay here and there occur, 

 where none can be seen on the cliff-top ; these also probably have 

 come from the interior of the sands. The cliff is annually wasting, 

 so that the visible sections and their appearances are in a state of 

 constant change. 



All the masses within consist of normal Chalky Boulder Clay 

 crowded with fragments of chalk. They all pass into the sands in 

 tongues, strings, or separate patches of a dark wet mud, like the 

 clay of the matrix, but containing no chalk. The mass nearest 

 Gorleston has many such streaks and patches, usually about 12 inches 

 by 2, in the underlying sand, to a depth of about 3 feet. Even 

 the mass first described, which, seen from the beach, seems to end 

 abruptly, on near inspection is found to have some of these patches 

 lying close to it in the sands. I do not see how these masses could 

 have been formed in situ. The appearances agree, however, in all 

 respects, with what would be expected if masses of Boulder Clay 

 surrounded by ice had been floated over the waters in which the 

 sands were being deposited, and had sunk where we find them. The 



1 [For figs. 1, 2, and 3 my thanks are due to Prof. Bonney, who kindly 

 furnished them from his note-book. The sections at League Hole show that 

 the masses terminate in the interior of the cliff as well as in its face.] 



