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synclinal ; and tlic nia[) and section are constructed in accord- 

 ance with this view. The dip, for the most part, varies but 

 slightly from 90° ; but still, the advocate of the synclinal theory 

 can find some ground for its support in the attitude of the 

 strata. It should be pointed out, however, that the dip of the 

 lediie of slate on the north side of Beal Street is W. 85°, and 

 not E. 85°, as marked ; while the ledges southwest of this 

 point and east of the Alms House are vertical. According to the 

 map and section the western strata are a repetition of those on 

 the east side of the belt ; and the syncline, although closely 

 a[)pressed, is shallow, holding only the lower half of the con- 

 glomerate series, up to and including the second slate (<>) ; and 

 as it approaches the shore it is merged rapidly with the east- 

 west monocline or rather with the main syncline. 



Although this interpretation seemed the most satisfactory at 

 the time when the special map and section were drawn, sub- 

 sequent observation and reflection have caused the alternative 

 view to appear more acceptable; viz., that all the beds of the 

 Beal's Cove section pass in regular order around the granite, 

 the structure being monoclinal in both directions from the 

 granite. This later and present view is expressed on the 

 general map, and hence the two maps are not in agreement 

 here. The ledges of slate south of the Alms House and nearest 

 to the shore appear at first sight to stand in the way of the 

 later interj)retation. But the strike of these outcrops is really 

 much more northerly than mapped, being directly toward the 

 most westerly ledges east of the Ahiis House. Certain 

 irreo"ularities in the strike were made the most of to bring the 

 ledges into conformity with the earlier explanation ; and the 

 dip, which is W. 85°, was also regarded as a local irregularity. 

 I am now disposed to refer these ledges to the highest bed of 

 red slate (12), placing them on the northwest side of the great 

 bend, but very near the lurning point. And the still higher 

 beds, tlu! massive conglomerate (1-^) and the gray slate (14), 

 instead of l)earing away to the westward, as if to cross the river, 



