476 Reports and Proceedings—British Association— 
Professors Rothpletz! and Andree,? Dr. Pohlig® and others, do not 
now hesitate to correlate with those beds the old ossiferous and 
implement-bearing alluvia which lie altogether outside of glaciated 
regions. 
The relation of the Pleistocene alluvia of France to the glacial 
deposits of that and other countries has been especially canvassed. 
Roihpletz, in the paper cited below, includes these alluvia amongst 
the inter-Glacial deposits; and in the present year we have an 
interesting essay on the same subject by the accomplished secretary 
of the Anthropological and Archeological Congress, which met last 
month in Paris. M. Boule correlates* the Paleolithic eave- and 
river-deposits of France with those of other countries, and shows 
that they must be of inter-Glacial age. His classification, I am 
gratified to find, does not materially differ from that given by myself 
a number of years ago. He is satisfied that in France there is 
evidence of three Glacial epochs and two well-marked inter- 
Glacial horizons. The oldest of the Paleolithic stages of Mortillet 
(CHELLEENNE) culminated according to Boule during the last inter- 
Glacial epoch, while the more recent Paleolithic stages (MousrErt- 
ENNE, SOLUTREENNE, and MagpaLénieNNE) coincided with the 
last great development of glacier-ice. ‘The Paleolithic age, so far 
as Europe is concerned, came to a close during this last cold phase 
of the Glacial period. 
There are many other points relating to Glacial Geology which have 
of late years been canvassed by continental workers, but these I cannot 
discuss here. I have purposely, indeed, restricted my remarks to 
such parts of a wide subject as I thought might have interest for 
glacialists in this country, some of whom may not have had their 
attention directed to the results which have recently been attained 
by their fellow-labourers in other lands. Had time permitted I 
should gladly have dwelt upon the noteworthy advances made by our 
American brethren in the same department of inquiry. Especially 
should I have wished to direct attention to the remarkable evidence 
adduced in favour of the periodicity of glacial action. Thus Messrs. 
Chamberlin and Salisbury, after a general review of that evidence, 
maintain that the Ice Age was interrupted by one chief inter-Glacial 
epoch, and by three inter-Glacial sub-epochs or episodes of deglaciation. 
The same authors discuss at some length the origin of the loss, and 
come to the general conclusion that while deposits of this character 
may have been formed at different stages of the Glacial period, and 
under different conditions, yet that upon the whole they are best 
explained by aqueous action. Indeed a perusal of the recent geo- 
logical literature of America shows a elose accord between the 
theoretical opinions of many transatlantic and European geologists. 
Thus as years advance the picture of Pleistocene times becomes 
' Rothpletz : Denkschrift d. schweizer. Ges. fiir d. gesammt. Nat., bd. xxviii. 
1881. 
* Andrew ; Abhandl. z. geolog. Specialkarte v. Elsass-Lothringen, bd. iv. heft 2, 
1884. 
3 Pohlig : op. cit. 4 Boule: Revue d’ Anthropologie, 1889, t. i. 
