A, S. Packard on the Drift Phenomena of Labrador, etc. 31 
sea level. 
The fossil Invertebrata, found abundantly in these beds, afford 
excellent material for compafison with the present marine fauna 
of Labrador, and throw new light on the distribution of marine 
life during the close of the Glacial epoch. The assemblage is 
thoroughly Arctic in character, but, when compared with lists of 
the glacial shells of the north of Europe, it is found to bear a 
Cyr 
were abundant formerly, seem to be dying out at the present day. 
In Maine the change is still more marked. Thus, the most char- 
stricted as now to the eastern coast of North America from t 
Arctic archipelago to the banks of Newfoundland, and shading 
