20 



PHYSIOGRAPHIC GEOLOGY. 



course of the chain. The high land of the southwest terminates 

 in New York ; and just east stands the separate line of the Green 

 Mountains ; and still farther eastward, — east of the Connecticut, — 

 the range of the White Mountains. 



The general idea of this composite structure is shown in figs. 



Fig. 17. 



11 to 16, where each series of lines represents a series of ridges 

 in a composite range. In fig. 11 the series is simple and straight ; 



X 



