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OSBORN AND REEDS PREHISTORY OF MAN IN EUROPE 



level of the waters of the Seine — and overlaid by a series of tufa layers 

 of a combined thickness of 15 meters, which represent not only tufa 

 inclines (tuf de pente), but tufa of the valley bottom, local facies of the 

 Tyrrhenian alluvium of the valley of the Seine. In the middle portion 



Figure 8. — Excavations on the "high Terrace" [II] at Saint Aeheul 



This is known as the ancienne carriere Dupont and more recently as the carriere 

 Battel, showing eight geologic layers, from the Upper Paleolithic deposits of brick-earth 

 at the top (9) down to the sub-Chellean yellow gravels (2) overlying the chalk (1) at 

 the bottom. 



of the tufa there was discovered in 1893-1894 early Acheulean imple- 

 ments, somewhat more recent than the late Ohellean coups de poing of 

 Chelles. 



The section of La Celle-sous-Moret (compare Osborn, 1915.2, pages 

 118, 166) is as follows: 



