CHAP. VIIT. 



SECTION OF GRAVEL AT ST. ACHETJL. 



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, eighteen 



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 



fragments 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 b, and flint implement 

 at c, ten to fourteen feet. 



5 Chalk with flints. 



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



b 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 mo 

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

 session. It has been pronounced by Dr. Falconer to belong 

 to Elephas primigenius. 



