BULLETIN 580, U. S. DEPARTMENT OF AGRICULTURE. 

 Table II. — Damage by height classes. 





Num- 

 ber of 

 trees. 



Character of injury. 



Damage. 





Year. 



Average for three-year 

 period. 



Height class. 



1912 



1913 



1914 



Total 

 trees 

 dam- 

 aged. 



Per cent of 



total trees in 



each class. 





Dam- 

 age 

 of all 

 classes. 



Severe 

 dam- 

 age 

 only. 1 





2,153 



3,294 



1,468 



1,212 



324 



293 



201 





Num- 

 ber. 

 272 

 322 

 166 

 91 



Num- 

 ber. 

 152 

 352 

 212 

 121 



Num- 

 ber. 



131 



143 



43 



19 



Num- 

 ber. 

 185 

 272 

 140 

 77 



9 

 12 



7 

 4 







Severely browsed 



Moderately browsed... 



Lightly browsed 



Severelv rubbed 



21 









Moderatelv rubbed 

















[Lightly rubbed 



















385 

 365 

 553 

 293 



232 



365 

 587 

 351 



203 

 229 

 301 

 119 



273 

 320 

 480 

 254 



8 

 10 

 14 



8 





1-foot class 



Severely browsed 



Moderately browsed. . . 



Lightly browsed 



Severelv rubbed 



18 









Moderatelv rubbed 

















Lightly rubbed 

















("Injured 



135 

 195 

 356 



207 



69 



75 



212 



159 



1 

 1 



81 

 125 

 154 



54 

 1 



95 



132 



241 



140 



1 



6 

 9 

 16 

 11 



]• 



2-foot class 



Severely browsed 



Moderately browsed. . . 



Lightly browsed 



Severelv rubbed 



j 







Moderatelv rubbed. . 





1 





Lightly rubbed 











f Injured 



55 

 104 

 238 

 165 

 2 

 1 



37 



73 



229 



183 



23 



6 



4 



1 



9 

 30 

 73 



9 



7 







32 

 96 

 156 



84 



26 



4 



11 

 29 

 42 

 40 

 3 



41 

 91 

 208 

 144 



17 

 4 



1 



2 

 10 

 31 

 68 

 17 



3 



s 



8 



17 ! 

 12 



1 







1 



10 



21 



s 







Severely browsed 



Moderately browsed... 



Lightly browsed 



Severely rubbed 



Moderately rubbed 



Lightly rubbed 



12 









Injured 



5 

 11 

 35 

 89 



3 







Severely browsed 



Moderately browsed... 



Lightly browsed 



Severely rubbed 



Moderately rubbed 











Lightly rubbed 









(Injured 



1 

 3 

 21 

 40 

 20 

 9 

 2 



1 









1 





Severely browsed 



Moderately browsed . . 



Lightly browsed 



Severely rubbed 



Moderately rubbed 



, Lightly rubbed 



2 



20 

 36 

 18 



3 



1 



5 

 14 

 42 

 35 



6 



3 

 18 

 39 

 24 

 7 

 2 



1 



i 



15 

 9 

 3 

 1 



9 













Above 5-foot class 



Moderately browsed... 



Lightly browsed 



Severely rubbed 



Moderately rubbed 



(Lightly rubbed 



72" 



12 



25 



9 



1 

 16 



9 

 20 



12 



1 

 21 

 14 

 22 



1 

 20 

 12 

 22 



7 



"io" 



6 



3 







1 Determined by adding per cent injured, per cent severely browsed, and per cent 

 severely rubbed. 



