19G 



the south shore, howevei*. where the hind is raised liy an ice beach, 

 the lalce is bordered by the button busli (Cepliahmthus oecidentalisi, osier 

 dogwood (Cornus stolonifera). Rosa Carolina. Cottonwood (Populus moni- 

 lifera) and willow. A region similar in vegetation is shown in Fig. 2. 

 This succession of societies is carried a step further on the west shore 

 of the lake southwest of Yarnelle's landing. In addition to the foregoing 

 are swamp white oak (Quercus bicolori. silver maple (Acer dasycarpum), 



Fig. 2. View across lake from Yarnelle's landing. The basin effect is more apparent 

 here. The transition in vegetative types is very rapid at this point, owing to the somewhat 

 abrupt rise in the topography. It quickly passes from hydrophytic through the marsh stage 

 to mesophytie. On the shore, zones of the button bush and osier dogwood are followed by 

 those of Carolina rose, willow and, lastly, elm. The coming of this tree means permanent 

 conditions looking to the mesophytie types. 



and sycamore (Platanus occiden talis). The land adjoining this on the 

 west, which is slightly elevated and better drained, and which might 

 show a still higher stage o£ development, has been cleared and cultivated. 

 ;So we must look toward the south where the hand of man has not 

 interfered with the work of nature. Here, as we might expect, in the 

 same relation as to position, that is a step further from the lake, higher, 

 -drier, and well drained, we find the hazel (Corylus Americana), the grape, 

 3Iayapple (Podophyllum peltatum). Catnip (Nepeta Cataria), Smilacina 



