1 88 1. 25 Trans. N. V. Ac. Set. 



running S.E. and N.W. through Hunter Mt., 35 miles long. Toward 

 the S.E., the descent from the crest of Hunter Mt. (Alt., 4038 feet), to 

 Overlook Mt. (3150 feet), is 888 feet, in g% miles, equivalent to i in 

 56, or about 1° ; toward the N.W., from Hunter Mt. to Utsyanthe Mt. 

 (3203 feet), the descent is 835 feet in 25 miles, equivalent to i in 158, or 

 less than %°. 



Another similar series of maxima, however, occurs further to the 

 v/estward, consisting of Graham Mt. (3886 feet), Bear-pen Mt. (3545 

 feet), and Ashland Pinnacle (3420 feet), distant respectively 9, 12, and 

 15 miles westward. of the former series. This southward convergence 

 of the axes of these two folds may probably account for the increased 

 protuberance and greater elevations in the Southern Catskills, 



Newly determined altitudes. — Many new determinations have been 

 made of points in the vicinity of the Clove, by means of an excellent 

 aneroid, with constant reference to the numerous stations in the vicinity 

 whose altitudes Jiave been accurately obtained by Guyot. A few are 

 here subjoined : 



Feet. 



Hotel Kaaterskil], on South Mt 2466 



Parker Hill, summit • 2565 



Parker Mt., "high ledge." 2874 



Clifton House 2101 



Newman's ledge, on North Mt 2486 



Gap between E. and W. peaks, North Mt 3"^ 



Toll-gate on Mt. House road 760 



Glaciation of summits. — All the crests near the Clove have been 

 now examined. On none above an altitude of 2900 feet have glacial 

 stria; been found, in part because they consist of thinly laminated flags 

 deeply disintegrated by frosts. The highest striae discovered were 

 found on Parker Mt., -'High ledge" (2874 feet), runnmg S. 18° W. 

 (magnetic), and under the roots of a large tree on the SE. slope of 

 Round Top, at an elevation of 2871 feet, running S. 35° E. However, 

 in all cases, a maiked difference exists in the slope of different sides of 

 a peak, the E. and S.E. sides presenting a precipitous face, and the 

 other sides more cr less of a gentle slope, made up of low terraces. 



The highest stride yet found in the Catskills occur on Overlook Mt., 

 at an elevation of about 3100 feet, implying a depth of ice in the Hud- 

 son Valley Glacier of about or at least 3200 feet. Within the Kaaterskill 

 basin, several miles distant from the Hudson valley, the overflowing 

 ice stream became shallower, having an altitude of about 3000 feet. 

 It thus appears that the surface of the glacier inclined westward over 

 these mountains, with a slope of 200 feet in 3 miles, i in 84, say about 



The conclusions of the former paper have been confirmed by recent 



