21 
x 
the Devonian system and on the other hand the Triassic (or 
Permo-Triassic) system. 
The distance from the Igaliko Sandstone to the nearest 
North American deposits of similar kind is even greater than 
the distance from Igaliko to King Oscar’s Fjord. In New Found- 
land Devonian sandstone occurs on the north side of White 
Bay; in Nova Scotia and New Brunswick we meet with exten- 
sive deposits of Old Red Sandstone and here also the Triassic 
(and Permian?) series is developed as red sandstone and reaches 
as much аз 800 meters in thickness‘. Coarse-grained igneous 
rocks younger than the Devonian sandstone occur in Nova Scotia, 
and the well-known igneous rocks of Montreal which belong to 
the alkali group are later than the lower Devonian *. 
Now the distances from Igaliko to Scoresby Sound in the 
north-east, and to Nova Scotia in the south-west, are so large 
that an agreement of the petrographic characters cannot be 
taken as a proof of an original direct connection between the 
sediments. But on the other hand we are taught by geological 
observations in many countries that the peculiar formations which 
are characterised by the abundance of red sandstones poor in 
fossils are not of a local nature, but must have originated under 
physical conditions which controlled the sedimentation over areas 
of a very wide extension. For this reason the presence of red 
sandstone deposits belonging to the same two geological periods, 
and the absence of red sandstones belonging to other periods, 
both in the south-east of Canada and in East Greenland — where 
almost the entire series of geological systems is represented by 
sedimentary deposits, — may be taken as an indication that if 
a considerable deposit of red sandstone occurs within the area 
that lies between these localities it must belong to one of the 
same periods. Igaliko is situated almost exactly on a line drawn 
' Henry A. Ami, Synopsis of the Geology of Canada. Trans. Roy. Soc. of 
Canada (2), Vol. Vi, Sect. IV (1900). 
? F. D. Apams, The Monteregian Hills. Journal of Geology, XI, р. 239 (1903) 
