OF DENISON UNIVERSITY. 
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of amorphous substance full of minute needles (sillimanite ?) like those 
above mentioned. 
No. 1031 is the same gneiss where it intersects Mountain river. 
Here it is somewhat coarsely granular, containing more orthoclase and 
biotite mica. There is some (perhaps secondary) quartz in the confused 
portion. The transition to the schist is here very readily seen, there 
being no unconformity. 
No. 1029 is a phase of No. 1031, just at contact with the schist 
and partakes of its characters. It has biotite in large quantities in 
conspicuous masses surrounded by irregularly disposed augite grains. 
The most of the remainder being plagioclase and orthoclase, with 
some quartz and an occasional large grain of calcite. The augite is 
very brilliantly polarized, but chiefly in grains or much broken crystals. 
From the above it may be gathered that these gneissic rocks form 
really an integral part of the schists, being more highly metamorphosed 
than they. We incline to regard them as the axial part of the fold, 
the strata repeating to all appearances on either side, as indicated in 
our diagram. The relation of the strata is such as to permit us to 
consider the schist conglomerate a true basement conglomerate. 
Passing beyond the gneiss the same series seems to be repeated 
in reverse order, though more careful examination is needed on this 
point. 
No'. 1037 resembles closely 1009 and is followed by No. 1038, 
which is identified with the conglomerate No. 1023. This is followed 
by schists. The contact of these schists with the granite is very sug- 
gestive. At a little distance from the contact, the schist (No. 1045) is 
a shining green chloride mica schist, with light specks scattered 
through it. Under the microscope it is seen that the green mineral is 
arranged in wavy bands separating aggregates of quartz in a finely 
granular condition with large porphyritic brown grains, seemingly ag- 
gregates. Close examination shows however that the brown granular 
appearance masks calcite, with its cleavage and irridescence, and a 
comparison with the part more nearly adjacent to the granite shows 
the brown grains to have been feldspar from the latter. 
No. 1046 is on the granite side of the contact and is an altered 
granite, having the quartz and feldspar imbedded porphyritically in a 
magma like that of the schist. The orthoclase is much altered by heat 
and the crystals are margined by calcite. The quartz is less fractured 
than in 1045, but on the whole the two are much alike. The original 
