
on) 
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Northern limits of Pinus Banksiana (broken lines) and of Thuja occidentalis (heavy 
spots): calcareous regions dotted. 
Pinus BANKSIANA. 
As Hutchinson states, on the Labrador Peninsula the Banksian 
Pine “extends northward to 56° N. lat. on the dry uplands east of 
Hudson Bay.” This statement is supported by Low, from whom it 
was derived, and Low states with positiveness that “The soil of the 
greater part of the peninsula is derived from the underlying Archaean 
rocks,” i. e. the acid granite-gneiss (Low, n. s. viii. 30L). West of 
the Labrador Peninsula the rocks on which the Banksian Pine grows 
are likewise invariably acid or neutral. The detailed accounts of the 
scores of areas described in the Annual Reports of the Geological 
Survey of Canada are replete with this evidence and a few brief but 
characteristic quotations are here included from the almost endless 
Series of notes to the same effect, the name of the recorder and the 
number and page of the report being indicated in parentheses. 
the Noddoway River, emptying into Rupert Bay, an arm of 
James Bay, “Banksian pine is found, where suitable conditions exist, 
as far as Mattagami Lake, but its range towards James Bay is not 
restricted on account of the latitude, but by some other circumstance, 
for in a slightly more easterly longitude this tree ranges northward to 
Great Whale River, a distance of about 450 miles in a straight line 
from Mattagami Lake” (Robert Bell, n. s. viii. 79A). In the region 
southeast of Mattagami Lake “a considerable proportion of the area 
- Consists of granitic rocks,” but “from the above-mentioned point 
