7i: 



ROLLIN D. SALISBURY 



or little eroded, topography of the drift are considered, youthful 

 features are seen to abound. In such cases, youth has been super- 

 imposed upon maturity. It is proposed to call this phase of youth 



Fig. 3. — Superimposed youth, from the Orland, Me., quadrangle. Scale, about 

 one and one-fourth miles to the inch. 



superimposed youth. Fig. 3 furnishes an illustration. Good illus- 

 trations abound in the glaciated mountains of the East, and in 

 many areas farther west. 



In the foregoing case, youth was superimposed on maturity. 



