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series of folds at about right angles to the former. This double sys- * 
tem of flexures makes the study of the geology of our vicinity difficult. 
Fissures in the Conglomerate. These have often been noticed 
and described. The best localities are “Purgatory” and the west 
side of Ridge VI in “Paradise.” The fissures are generally 
nearlv vertical and run W.NW. to E.SE. I believe the most 
satisfactory explanation of these is that after the conglomerate had 
been corrugated by the E.SE.—W.NW. pressure in folds striking 
N.NE.—S.SW., the transverse pressure, above referred to, 
acted upon it; but owing to the rigidity of the deposit and 
its previous flexure in the opposite direction or possibly to 
the continuance of the other pressure, the result was only a 
series of breaks running E.SE.—W.NW. The powerful pressure 
to which the conglomerate was or had been subjected is shown 
by the fact that these fissures cleft pebble and cement alike, which 
would not have been possible had not the rock been compressed 
into a mass of almost equal density and cohesion. Many of these 
fissures were then or afterwards filled with veins of milky quartz 
and it is these veins which furnished the Indians hereabout with 
so large a supply of white arrow heads. 
Dislocated Veins. These are mentioned by President Hitch¬ 
cock in the protogine, near the Boat House. They occur, also, in 
chloritic and epidotic schists near Fort Dumpling. The vein 
matter is a pinkish feldspar and quartz. One vein, but four feet 
long, is dislocated or faulted ten times, another shows pressure 
from two directions. The line of contact between these schists 
and the protogine is at that point much faulted, the two rocks 
being literally dovetailed into each other, repeating on a larger 
scale what occurs in the veins. 
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