730 THE JOURNAL OF GEOLOGY. 



Falls. From there it is traced with some difficulty along the 

 road to Sage's Ravine, between garnetiferous schists on the east 

 and Everett Schists on the west. The garnets of the eastern 

 schist belt were found to extend northward into the contracted 

 part of the tongue of schist. Immediately north of Sage's 

 Ravine the graphitic rock is distinctly calcareous. West of this 

 point the garnetiferous rock occupies the bed of Sage's Ravine 

 as shown on the map and in sections, while the Everett Schists 

 occur on the road above. To the south of Sage's Ravine and at 

 the altitude of the summit plain, opens a wide bench fully a quar- 

 ter of a mile in width with the Everett Schists rising abruptly 

 from its western edge in Mt. Bear. To the east of it are thin 

 caps of Everett Schist, then small outcrops of graphitic schists, 

 alternating for a short distance with garnetiferous and staurolitic 

 schists, and finally the latter occurs alone, clearly showing that 

 in the bench and for some distance east of it, the thin bed of 

 graphitic schist lies at the surface. These relations are exhibited 

 in section G ; of Fig. 2. Still farther south this bench is extended 

 into a broad swampy tract on the two sides of which the two 

 schist horizons are shown in outcrops, the garnetiferous rock 

 being on the east and the other schist on the west. This swampy 

 plain outlining the area occupied by the graphitic belt, crosses 

 the north and south Mt. Riga road just north of Mt. Riga (Bald 

 Peak), its northern and southern limits being marked by sharp 

 turns in the road and abrupt rises in the land, as well as by out- 

 crops of the two schist horizons. In the almost continuous areas 

 of exposures in the vicinity of the Mt. Riga Lakes, its course is 

 carved out sharply though the rock is not found in outcrop. Be- 

 yond South Pond the belt narrows and begins to be followed with 

 difficulty. The graphitic rock has been found in outcrop in the 

 bed of a stream flowing toward Mt. Riga Station. Farther down 

 this stream is joined by another from the east flank of Mt. Thorpe, 

 Containing likewise a belt of graphitic schists (here calcareous) 

 in contact with garnetiferous rock on the west. This belt of 

 graphitic rock is soon cut off to the south, but it is found to join 

 the ( ,main valley through a depression of the ridge to the north- 



