5) 

 J) 



116 CLARK— ON WATER CONTENT 



woods, its southern one was a shallow stream 10 feet in width, fed by a 

 spring 300 feet farther east; its western boundary was a fence, dividing 

 the woods from a broad, open pasture; its eastern border was an ima- 

 ginary line about 20 feet long running between the cart-road and the 

 stream. The plot thus irregular, had its greatest length of 70 feet, and 

 its greatest width of 30. 



During the previous summer (1914) a bhghted chestnut tree had 

 been removed from the western end of the plot, leaving a large, solid, 

 two-foot stump. The removal process had resulted in the destruction 

 of most of the secondary growth of the plot, as well as of many young 

 beech saplings. In the plot were found the following species: 



(1) Trees: 



Fagus americana 15 individuals 



Quercus alba 13 



Cornus florida 7 



Hamamelis virginiana 7 



Liriodendron tulipifera.... 6 



Castanea dentata 4 



Acer rubrum 4 



Prunus serotina 3 



Fraxinus americana 1 



Nyssa sylvatica (60 it.).... 1 " 



(2) Shrubs (few and scattered:) 

 Vaccinium stamineum 



Rhus toxicodendron 

 Viburnum acerifolium 

 Diervilla lonicera 



(3) Herbs (few and scattered :) 

 Lysimachia punctata 

 Polygonatum biflorum 

 Impatiens pallida 



The forest floor was covered with leaf-mold to a depth of 10-15 

 inches. During the whole season there was no scarcity of water supply, 

 for not only did the stream run on two sides of the plot, but the season 

 was one of exceptionally great and frequent rainfall, as the following 

 table shows :^ 



«U. S. Department of Agriculture, Weather Bureau, Monthly Meteorlogical 

 Summary, 1915, Philadelphia, Pa. 



