BIELBECKS. 
145 
The excavation presented the following section above the water. 
Ft. In. 
1. Black sand at the surface ... ... ... ... 0 9 
2. Yellow sand ... ... ... ... ... 1 6 
3. White gravel, consisting of small pebbles of chalk and angular 
fragments of flint, with a few pieces of gryphma incurva and 
finer pebbles of sandstone, varying in thickness, average ... 2 6 
4. Blue marl irregularly penetrated by the gravel, No. 3, and 
partially chequered by it ... ... ... ... 5 0 
5. Commencement of a blacker marl which had been excavated to a depth of ten 
feet, and contained most of the bones and shells. 
Under the direction of Mr. Harcourt, another pit was opened ; 
six or seven hundred loads of marl were removed; the deposit was 
penetrated to its lowest bed; the depth at which the several bones 
were found was measured ; and the nature and the location of all the 
contents of the pit were carefully observed. The following Table drawn 
up by Mr. Harcourt contains the chief details of this examination. 
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