220 SUPEKFICIAL DEPOSITS. 



miles from the nearest part of the coast, rounded stones have 

 been found from time to time*. The owner of the works, 

 Mr. Champion, gave me, some years ago, five pebbles which 

 had been taken out of the clay at depths of from five to nine 

 feet. Three were of fine red granite, one was of diorite, and 

 one of f elsite ( ?) Again, at a brickfield at Five Oaks, about 

 240 feet above spring tide high water mark, three smoothly 

 rounded stones were found near the bottom of the clay, where 

 it attained a depth of from fourteen to twenty feet. These 

 stones, like most of the pebbles found in the clay, were of fine 

 red granite, and one of them, a large fragment of which I 

 saw, must have measured above fourteen inches in its longest 

 diameter. So far, I have not discovered isolated flint pebbles 

 in the clay, though, as already noticed, I have found them 

 occurring in a bed of rolled stones or raised beach included in 

 it. The occurrence of rolled flints at the bottom of the clay 

 in Guernsey is to me an important and interesting fact. 



So far as I am aware, the only fossil found in the clay is 

 the lower part of a femur, indentified as that of Bos primi- 

 geneus. It was found in making a cutting for the Eastern 

 Railway near Pontac, and it is now in the museum of the 

 Societe Jersiaise. It may be mentioned, however, that 

 Mr. W. Nicolle (Jurat) has in his possession parts of a 

 remarkable skull, which was said to have been dug out of the 

 clay at La Motte Island. Unfortunately no details of the 

 discovery are now obtainable. There are two portions, the 

 larger consisting of the occipital bone, most of the right 

 parietal, and dome of the left ; while the smaller is formed by 

 part of the frontal bone, with the upper part of the right orbit. 

 The supercilliary ridge is strongly developed, and the fore- 

 head is low and retracting, recalling the Canstadt type. So 

 far as could be ascertained the cephalic index was 74*3. It 

 may be noticed here that in the low-lying district on which 

 most of the town of St. Helier is built the yellow brick earth 

 lies on blue clay. This is a tenacious true clay, which has 

 accumulated to a considerable depth. Many years ago Mr. 

 Green, a well-sinker, gave me the subjoined sectionf : — 



Yellow clay 15 feet. 



Large angular gravel 15 inches. 



Stiff blue clay 27 feet. 



Blue sand, with rounded and sub- 

 angular rock fragments a few inches. 



* See " On Raised Beaches and Rolled Stones at High Levels in Jersey."— Quar- 

 terly Journal Geological Society, November, 1893. 



t "On Jersey Brick Clay."— Quarterly Journal Geological Society, Feb., 1889. 



