CHAP. Till. 



SECTION OF GRAVEL AT ST. ACHEUL. 



135 



is noticed as having been dug out of unstratified sandy loam 

 at the point a, eleven feet from the surface. This was found 

 at the time of my visit; and at a lower point, at b, seventeen 



Fig. 21. 



Section of a gravel-pit containing flint implements at St. Acheul, near Amiens, 

 observed in July, 1860. 



1 Vegetable soil and made ground, two to three feet thick. 



2 Brown loam with some angular flints, in parts passing into ochreous 



gravel, filling up indentations on the surface of No. 3, — three feet 

 thick. 



3 White siliceous sand with layers of chalky marl, and included frag- 



ments of chalk, for the most part unstratified, — nine feet. 



4 Flint-gravel, and whitish chalky sand, flints subangular, average size 



of fragments, three inches diameter, but with some large unbroken 

 chalk flints intermixed, cross-stratification in parts. Bones of 

 mammalia, grinder of elephant at h, and flint implement at c, — ten 

 to fourteen feet. 



5 Chalk with flints. 



a Part of elephant's molar, eleven feet from the surface. 



h Entire molar of E. primigenius, seventeen feet from surface. 



c Position of flint hatchet, eighteen feet from surface. 



feet from the surface, a large nearly entire and unrolled 

 molar of the same species was obtained, which is now in my 

 possession. It has been pronounced by Dr. Falconer to. be- 

 long to Elephas primigenius. 



10 



