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NEW YORK STATE MUSEUM 



commences near the Little Chazy river at the 640 foot level and 

 runs to the north for some distance along the base of Pine ridge. 

 The ridge was followed for over a mile, and that seems but a small 

 part of its length. The boulders are all fairly well rounded. 

 No material of less size than an inch in diameter is found, and the 

 range in size is from that up to from 9 to 12 inches. Only an 

 exceptionally strong current could have moved material of this 

 size and carried away everything smaller. As the belt is followed 

 northward, it broadens somewhat, suggesting that there may 

 have been some creep down the hillside. For the mile that it 

 was followed the belt appears to be horizontal instead of lying 

 on a grade, a fact also noted by Mr Gilbert and mentioned in con- 

 versation. It was at first thought that this cobble belt furnished 

 strong corroborative evidence of a spillway channel, its present 

 position marking the ice edge down against which the material 

 was washed, since, had the ice not been there, it should have been 

 washed farther down the slope on which it lies. But it is hard 

 to explain the unchanging altitude on this view, since a suffi- 

 ciently strong current to account for the phenomena would seem 

 to require considerable grade. However, the altitude has not 

 been carefully leveled; so there may be sufficient fall to have 

 given a stream of large volume in a restricted channel the requi- 

 site velocity. Xo alternative explanation has occurred to the 

 writer. 



Economic geology 



There is little of economic importance within the area of the 

 Mooers sheet. There may be deposits of magnetic iron ore in the 

 extreme southwest, but no disturbance of the compass has been 

 noted, and it is exceedingly improbable that there are any of 

 large size or economic importance. 



The Calciferous and lower Chazy limestones about West Chazy 

 do not produce a quality of lime that will compare with that ob- 

 tained from the Black river and middle Chazy limestones along 

 the lake, and have no importance in view of the nearness of the 

 latter. Much of the Calciferous will furnish an excellent road 



