446 OSBORN AND REEDS PREHISTORY OE MAN IN EUROPE 



A very important difference is that Obermaier now agrees with Penck 

 (1909.1) and shifts the beginning of the Chellean industry (that is, pre- 

 Chellean) back to Second Inter glacial time. The same conclusion is 

 expressed by Mayet in his table of 1919 (compare Mayet, 1921.2, page 

 486) : 



TABLE VII 



Glacial and Archeologic Correlation of Lucien Mayet, 1919 9 



Neolithic. 

 Azilian. 



(Glaciation, neo-Wiirmian) Magdalenian (late). 



Postglacial Magdalenian. 



(Fourth period of regression of f Magdalenian (early) "1 



glaciers. ) [Aurignacian (late) J 



[IV] Glaciation of Wiirm rAurignacian. 



(Fourth period of extension oix Aurignacian (early). 



glaciers. ) iMousterian (late) . 



[Third] Interglaciation, Riss-Wiirni . Mousterian. 

 (Third period of regression of 



glaciers. ) r Mousterian (early) . 



Close of Acheulean. 



[Ill] Glaciation of Riss Acheulean. 



(Third period of extension of 



glaciers. ) Close of Chellean. 



[Second] Interglaciation, Mindel- 



Riss Chellean. 



(Second period of regression of 



glaciers.) pre-Chellean? 



[II Glaciation of Mindel.] 



[First nterglaciation. Giinz-Mindel.] 



fclOD 



-4- r*i 



The most recent (1921) correlation is that of the eminent paleon- 

 tologist of the Paris Museum, Marcellin Boule (1921.1), who, adhering 

 to his opinions of 1888 (1888.1), (1) places the I Glaciation in Pliocene 

 time, (2) unites the II and III Glaciations and the Second and Third 

 Interglaciations of other authors into a single glacial and interglacial 

 cycle (Boule, 1921.1, pages 48, 49) and correlates the human stages as 

 follows : 



9 Enseignernent de l'ann£e 1919-1920 a la Faculty des Sciences de Lyon. 



