I. 17, Biological Survey, U. S. Dept. of Agriculture. 



Plate II. 



Marshall Hall 

 [I Wharf 



-J 



O 



o 



4 H ^ H PINE. 



■^^^m OAK. 



^^^^^^ WILLOW. 



L^kL^L'-LL'-a'-c LAUREL 



#*-^*J SWAMP OR MARSH. 

 — — = ROAD. 





Map of Bryan Farm, where the Investigations were Carried On. 



