30 A. 8. Packard on the Drift Phenomena of Labrador, etc. 
fested by the plant which was supplied with uric acid. “Wheth- 
er this is more than accidental is worthy of study. 
From these experiments the writer concludes that the amids 
resulting from the disorganization of protein compounds, as well 
as ammonia salts and nitrates, are capable of direct passage into 
the plant, and there serve for the reorganization of albumen, &c. 
ameron, in the investigation alluded to, remarked that his re- 
sults demonstrate that it is not necessary that urea should de- 
compose into carbonate of ammonia in order to become ayailable 
to vegetation, and the above facts warrant the generalization 
that all the amids existing in the urine of animals are ready for 
assimilation, without any further resolution by decay. So far as 
they are directly concerned, then, any “fermenting” of manures 
of which they are ingredients is useless. 
865. 
Art. VI.—Resulis of observations on the Drift Phenomena of Lab- 
rador, and the Ailantic coast southward; by A. S. PACKARD, 
Jr., M 
THE whole surface of Labrador has passed through a denuda- 
tion of great extent by continental’ glaciers. In the southern 
part of the peninsula, bordering on the gulf of the St. Lawrence, 
the glaciers evidently moved southward down the slope from 
_ sea, at which point they occur in profusion. Below this point 
they have been rolled, rounded, and rearranged into ancient sea 
depressions, being glacial troughs filled with water and forming — 
countless pools, and on the rounded syenitic hills which assume _ 
dome-like or high conical sugar-loaf forms, we see everywhere — 
_ traces of ancient 
, below a level of 2000 feet, the 
eae 
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