STATU Kij: \oTi:s o\ hast yokksiiikj: rouldkiis. 
eiglity feet in height fur up\var(Js of two miles, and are entirely 
composed of glacial material, chiefly boulder - clay. Here were 
noted 334 boulders of twelve inches and upwards in diameter. 
(ii.) liedcliff is on the north shore of the Humber, near 
North Ferriby, and is twentj^-four miles west-north-west of 
Dimlington. The cliff continues along the Humber side for 
two-thirds of a mile with an average height of eighteen feet, 
and together with the adjacent beach is composed of boulder- 
clay. The boulders recorded here were 373 in number. 
(iii.) Upgang is one-and-a-half miles north of Whitby; the 
cliff sections are one hundred feet or more in height, and con- 
sist largely of boulder-clay. In this neighbourhood Mr. Lamplugh 
counted and classified two hundred boulders of twelve inches and 
upwards in diameter, the majority of which were oi local origin ; 
the percentages given in the table below are based on his list. 
(iv.) The cliffs between Saltburn and Kedcar present the 
most northern exposure of boulder-clay on the Yorkshire coast. 
These sections yielded 133 boulders of twelve inches and up- 
wards in diameter. 
After eliminating all the local boulders from the lists, at 
the above-mentioned localities, the relative proportion betw^een the 
several groups of far-travelled boulders is as follows : — 
Table IT. 
Groirs. 
Diiuliugtoii. 
II. 
Redcliff. 
III. 
L'pf-aiig. 
IV. 
Saltburn. 
Per cMit. 
Per cent. 
I'er cent. 
Per cent. 
1. 
Carboniferous limestones 
and sandstones 
o5 
r,9 
70 
73 
2. 
Basalt (Whin Sill) 
32 
30 
24 
20 
3. 
Magnesian limestone ... 
0 
0 
o 
7 
4. 
Granite, gneiss, &e. 
13 
11 
1 
0* 
100 
100 
100 
* Several large boulders of Shap granite were seen in the gardens 
and about the town, which had probably been derived from the neigh- 
bouring drifts. 
