FOKEST ADOKNMENT 



ture and contain valuable chemical con- 

 stituents which they return to the soil. 

 The pine barrens of ^N^ew Jersey 

 illustrate these principles. In close 

 proximity to the sea a welcome mois- 

 ture enters the forest with the ocean 

 breezes. Penetrating farther inland, it 

 is not so entirely dissipated as to pre- 

 clude a varied undergrowth of shrub- 

 bery, which in turn renders a welcome 

 aid to the forest by the protection it af- 

 fords to the porous, sandy soil, which 

 would soon dry out under the scant 

 shelter of the pervious pines. Underv 

 neath these the kalmia or calico bush^ 

 with its large and showy bunches of 

 flowers, is abundant. In late summer 

 the sweet pepperbush is there, laden 

 with its fragrant racemes ; in winter, the 

 cheerful evergreen holly of glossy green 

 67 



