MOVEMENTS OF THE EARTH'S CRUST AT ST. JOHN. 35 



thin eovoring of soil, but in some places the covering has 

 been removed, and the smooth, glaciated surface of the 

 slates is visible. "^ (See plate). 



The glacial striie here have a course south, five degrees 

 east, -which is more than the usual easting, because the 

 crest of the Hospital ridge slopes downward to tlie north- 

 east near here. The slates are full of fault planes, running 

 in several directions. The prevailing ones are parallel to 

 the hillside and have a course north, sixty degrees east. 

 It is along this line of fault planes that the princix)al 

 displacements have occurred. Movement has also occurred 

 along a set of planes having approximately a south-west 

 (south, thirty-five degrees west) course. 



The rough measurement of the spaces between the 

 faults, and the amount of displacement, gave the follow- 

 ing results, beginning at the Cit}' Road : 



11 7 10 



In the half nearest the road, toward the western end 

 of this exposure, there is a diagonal fault, course south', 

 thirty-five degrees Avest, of about one inch, having a hade 

 of seventy degrees to the south-east, and having the down- 

 throw on the north side. 



Other measurements were taken at Rock Street. 

 Back of Fowlers mill on this street, there are quite 

 distinct faults, some with a throw of three to five inches. 



*I am indebted to Mr. Gilbert Van Ingen of Columbia College, New York, for 

 the photographic view from which the accompanying plate has been made ; it 

 shows the faults described in the firtt of the tables given above. 



