Presidential Range of the White Mountains. 457 



between two amphitheatres of the Great Gulf glacier, which 

 is preserved down to the 4500-foot contour. Southeast and 

 east of Mount Jefferson is a longer remnant of the old 

 upland surface. At Monticello Lawn the presence of a con- 

 siderable patch of bowlderless ground in the mantle of glacial 

 drift prompted someone several years ago to put out a croquet 

 set, where visitors might play the game at the very top of 

 the ran^e. This lawn runs down the crests of the two 



Fig. 4. 



Fig. 4. View of the graded cone and "knees" of Mount Jefferson, 

 across the Great Gulf from Mount Washington. By E. H. Lorenz. 



"•Knees" of Jefferson as far as the 4500-foot contour, beyond 

 which, as in the case of Chandler Ridge, the ends of the 

 spurs have been trimmed off by the Great Gulf glacier, 

 leaving two large triangular facets (see figure 4). Around 

 Mount Adams and its subsidiary summits the sides of the 

 cones flatten perceptibly into graded lawns like those already 

 described. Southeast of the peak of Adams, in particular, the 

 graded surface reaches down to a broad shelf that overlooks 

 the Great Gulf directly opposite to Chandler Ridge. The 

 two remnants of the old graded slope agree perfectly in 

 altitude, standing 1 at 4000 feet. 



