November 22, 1895.] 



SGIENGE. 



675 



Upon examining the region soutli from 

 Corinth, a remarkable passage is observed 

 west of Mt. McGregor following in the 

 main the upper portion of the valley of the 

 Kayaderosseras River. For the first five 

 miles this is occupied by numerous kames 

 and kettle holes holding small bodies of 

 water and very imperfectly drained to the 



forms the watershed the small stream run- 

 ning into the Kayaderosseras meanders 

 through a shallow, broad valley occupied by 

 horizontally stratified sand and gravel. 

 Without doubt this was temporarily the 

 outlet of the Hudson Eiver during the re- 

 cession of the ice sheet. I did not have 

 time to follow this valley down to see the 



Fig. I. Dotted portion sliows gravel deltas and kames. The cross ends abandoned channels 

 Figures, feet above tide. 



northward. At South Corinth, at an eleva- 

 tion of 604 feet above tide, there is an ex- 

 tensive swamp about a mile wide, fi-om 

 which the water drains both ways. On the 

 west of this swamp and stretching south- 

 ward extensive deposits of gravel and sand, 

 which may be a lateral moraine, flank the 

 Kayaderosseras Mountains. This moi-ainic 

 belt is 300 or 400 feet above the valley. 

 Immediately south of the swamp which 



dh-ection and limits of the gravel deposits 

 derived from this sovirce. So far as I could 

 see, there was here ample space for a pre- 

 glacial channel conducting the drainage in 

 the upper Hudson along a more direct line 

 than that which is now followed from Co- 

 rinth to Glens Falls and Fort Edward and 

 thence southward. 



At Fort Ann the channel from Fort Ed- 

 ward to Whitehall is nearly crossed by 



