160 



ILLINOIS STATE ACADEMY OF SCIENCE 



As a preliminary basis and to provide as substantiat- 

 ing evidence the fact that reasonably large numbers of 

 observations are available, the following tables are in- 

 cluded. 



TABLE 1. 

 Total barberry plantings found and removed in eight counties: 



Cities 

 Counties and 



Alphabetically Towns 



Boone 48 



Cook 1371 



DuPage 336 



Kane 490 



Lake 2298 



McHenry 209 



Stephenson 119 



Winnebago 631 



Total 5502 



Number of Properties in 



295 



677 



6179 



5791 



TABLE 2. 

 Total barberry plantings found and removed in entire state: 



Cities 

 and 

 Survey Towns 



Original 7724 



Resurvey 



Removals 



Total 7724 



Number of Properties in 



Country 

 Having 

 Escapes 

 346 



346 



Total 

 794 



Both, on which 

 bushes were 

 Found Removed 

 8518 5523 



.... 2250 



794 



8518 



7773 



TABLE 3. 



Total barberry shrubs found and removed in eight counties: 



Number of Bushes in 



Both Sprouts 



Cities Country cities and country Found 



Counties and Re- on Re- 



Alphabetically Towns Escaped Total Found moved survey 



Boone 2426 1 119 2545 2545 4 



Cook 10935 1610 5058 15993 14200 113 



DuPage 7232 84 3305 10537 7058 201 



Kane 9053 241 1119 10172 9314 222 



Lake 10784 18914 20706 31490 28379 462 



McHenry 3707 2480 3313 7020 4098 250 



Stephenson 1426 860 1320 2746 2746 705 



Winnebago 5825 281 686 6511 6511 320 



Total 51388 24471 35626 87014 74851 2277 



