19 



the trees have been badly injured by leaf -beetle. (Lina scripta) 

 for three successive seasons, very few have died, though the 

 growth has been greatly checked. Owing to the excellent stand 

 in this plat, a good shade has been formed, and weed growth 

 has been less than in plats where the box elder has been used, 

 but has not grown well. Certinensis poplar is more dense and 

 upright than the cottonwood, and so makos a heavier shade. 

 Both the elm and ash have thus far grown well with the poplar. 



SUMMAKY. The plat contains 688 poplars (in a few rows the 

 poplar was substituted for elm or ash), average height 6 feet 

 tallest 8 ft- 2 inches, average growth this season 2 feet; 277 

 white ash, average height 3 ft. 9 inches, tallest 6 ft. 6 inches; 

 344 white elm, average height 5 feet, tallest 8 feet, average 

 growth this season 2-| feet; total 1309 trees. 



PLAT 7. 

 E B P A B W P E B 



PBBBPBBBP 



PABWPEBC 



BPBBBPBBB 



A B W P E B C 



B P 



W P 



B P 



E B 



B P 



B B B 

 E B C 



P A B 



n 



P B B B P 

 P A B W P 



BBBPBBBP 

 CPABWPEB 

 P B B B P 



B B B 



E White Elm, ( Ulmus Americana). 



B Box Elder, (Negundo aceroides). 



B Black Wild Cherry, (Prunus serotina). 



A White Ash, (Fraxinus Americana). 



W Black Walnut, (Juglans nigra). 



P Poplar (Russian varieties). 



