﻿Nichols: The vegetation of Connecticu 



Fig. 2. Diagrammatic vertical sections to represent the relation of topography 

 and level of ground water to character of lakes, ponds, and swamps. Surface of 



Ground represented by continuous line ( ), Level of Groundwater in Spring 



by long dashes ( ), Level of Ground Water in Late Summer by short dashes 



( ). A. Permanent Lake or Pond. B. Intermittent Lake or Pond. C. 



Permanent Swamp; cross section of a glacial drainage valley. From this diagram 

 the relations of topography and water table might at first thought appear identical 



