PAPERS OX BIOLOGY AND AGRICULTURE 



153 



From its point of first introduction and naturalization, 

 the shrub has spread westward across the continent, tra- 

 versing in its role of decorative shrub, dye-producer, 

 jelly-maker, and spreader of rust, the paths of migration 

 in company with the hardy pioneers of our early history. 

 In Illinois, its i^resence, both as old and large cultivated 

 shrubs and hedges and in extensive naturalized plantings, 

 still marks the pathway of the early settlers from east to 

 west and indicates those places which our forefathers con- 



:?r;i ■.:■■> 



<K' 





^.tlU^ 









/ 



-'' 



. ,/• 



.'\ 



V 





s^^^^m 



V.-'- 





I 



Map 



3. Boone County. Scale V^" = 1 mile. 

 Markings same as Map 2. 



