'J^130 NEW YORK STATE MUSEUM 



ment earlier on the east and successively westward; in other 

 words, the ice front inclined to the escarpment, with an open 

 angle toward the east. This agrees also with the known move- 

 ment or flow of the ice body from the northwest in its last stages 

 in this region, the front of the glacier being at right angles to 

 the direction of flow. 



Relative age of the channels 

 The eastern channels are older than the western, and prob- 

 ably in regular succession westward. It does not follow how- 

 ever that all the channels of a group, both higher and lower, 

 were cut before even the highest of the next group on the west. 

 Such may have been the case with the Eaton hill channels, as 

 they lie south of the parallel of the next westward group, on 

 West Stockbridge hill. The latter group and the Cranson hill 

 group were probably cut more nearly together, since they all 

 trend north of east, and the Cranson hill channels show rela- 

 tively less effect of plunging. The latter two groups were 

 largely completed before the Eagle hill group, as these latter 

 have gorges and cateracts which indicate low water on the east. 

 A similar statement applies to the groups of large channels 

 southeast of Syracuse, or west and east of Jamesville, for they 

 belong to the sub-Warren drainage of later time, though they lie 

 farther south than the Eagle hill group. 



3 CATTARAUaUS-CHAUTAUQUA DISTRICT 

 Field of special study 



The work in this large district during the summer of 1900 was 

 largely in the nature of a careful reconnaiseance, but some of the 

 resTiltfi of the study are sufficiently complete to allow present 

 publication.^ 



The particular field of study was a belt along the divide between 

 the waters flowing to the Ohio river and those flowing to Lake 



^ In the study of this region the writer was generously assisted by his 

 friend and college mate, B. W. Law, who has his summer house at Collins, 

 near Gowanda, and is intelligently interested in the Pleistocene geology 

 of the Cattaraugus district 



