44 The Am eric an Geologist. July, i898 
recognized it as a terminal morainic belt, similar to the ter- 
minal moraines of the northern United States.* This most 
prominent European moraine series reaches nearly 300 miles 
from north to south and southeast in the peninsula of Den- 
mark, Schleswig, and Holstein; and thence it continues east- 
ward about 500 miles in broadly crescentic loops, passing 
through Mecklenburg, Pomerania, and West and East Prus- 
sia. Its course in these German provinces, to the Russian 
frontier, as outlined by Salisbury, has since been in part fully 
explored and mapped by Wahnschaffe, Keilhack, and other 
German geologists, especially for distances of 50 or 60 miles 
both to the west and east of the river Oder. Immediately 
eastward of that river, a great moraine loop incloses the 
southern and eastern sides of an area of most remarkably abun- 
dant drumlins.t 
On account of the general parallelism of this moraine belt 
with the coast of the Baltic sea, and because its drift was trans- 
ported by an ice-sheet flowing across the Baltic basin toward 
the west and south, it is commonly called the Baltic ridge. 
From its good development in Mecklenburg, Prof James 
Geikie has applied the name Mecklenburgian to the epoch or 
stage of the Glacial period when its morainic drift was 
amassed.^ In North America a correlative and probably con- 
temporaneous stage of glaciation produced the great series 
of moraines which has been mapped from Nantucket and 
Cape Cod to Wisconsin, Iowa, Minnesota, the Dakotas, and 
the Canadian provinces of Manitoba and Assiniboia. The 
Late Glacial time of accimiulation of these moraines had been 
somewhat earlier named by Chamberlin the Wisconsin 
epoch or stage ;§ and this term, as I have shown in a former 
]:)aper, jj may be better used, in accordance with the law of 
priority, for the moraine-forming stage of the Glacial period 
in Europe as well as in America. 
My first observation of the Baltic ridge last summer was 
*Am. Journal of Science, third series, XXV, 401-407, May, 1888. 
fNoticed in my third paper, Am. Geologist, XXI, 237, April, 1898. 
Jjournal of Geology, III, 241-269, April-May, 1895. 
§Chapter XLII in Geikie's Great Ice Age, third ed., 1894; Journal 
of Geology, III, 270-277, April-May, 1895. 
II Am. Geologist, XVI, 100-113, August, 1895. 
