68 BULLETIN" 285, U. S. DEPAETMENT OF AGEICTJLTXJEE. 



Table 43. — Form of yellow birch in the Lake States — Continued. 



80-FOOT TREES. 













Height above ground— 



feet. 













Diame- 

 ter, 



breast- 































1 



2 



3 



4.5 



9.15 



1"3 ! 

 1/.3 , 



25.45 



33.6 



41.75 



49.9 



58.05 



66.2 



74.35 



Basis. 



high. 































Diameter inside bark — inches. 





Inches. 





























Trees. 



8 

 9 



10.3 

 11.7 



8.7 

 9.7 



8.0 

 9.1 



7.6 

 8.6 



7.1 

 8.0 



6.5 

 7.3 



6.1 

 6.9 



5.4 

 6.3 



4.7 

 5.4 



3.7 

 4.3 



2.7 

 3.1 



1.7 

 2.0 









1 



10 



12.9 



10.8 



10.0 



9.5 



8.9 



8.2 



7.6 



6.9 



6.0 



4.8 



3.6 



2.3 







2 



11 



14.3 



11.9 



11.0 



10.4 



9.7 



8.9 



8.3 



7.7 



6.8 



5.4 



4.0 



2.5 







3 



12 



15.6 



13.1 



12.1 



11.3 



10.5 



9.6 



9.1 



8.4 



7.4 



6.0 



4.5 



2.8 



.... 



9 



13 



17.0 



14.1 



13.0 



12.3 



11.4 



10.3 



9.7 



9.1 



8.1 



6.6 



4.9 



3.1 





9 



14 



18.4 



15.3 



14.0 



13.2 



12.2 



11.1 



10.4 



9.7 



8.7 



7.3 



5.4 



3.5 





10 



15 



19.7 



16.3 



15.1 



14.1 



13.1 



11.8 



11.2 



10.5 



9.4 



7.9 



5.9 



3.7 





6 



16 



21.1 



17.5 



16.1 



15.1 



13.9 



12.7 



11.9 



11.1 



10.1 



8.4 



6.3 



4.0 





11 



17 



22.5 



18.6 



17.1 



16.0 



14.8 



13.4 



12.6 



11.8 



10.7 



8.9 



6.8 



4.4 





413 



18 



24.0 



19.8 



18.1 



16.9 



15.6 



14.2 



13.3 



12.5 



11.3 



9.6 



7.3 



4.7 







12 



19 



25.4 



20.9 



19.1 



17.8 



16.4 



14.9 



13.9 



13.1 



11.9 



10.1 



7.8 



5.0 





9 



20 



27.0 



22.2 



20.2 



18.8 



17.3 



15.6 



14.7 



13.7 



12.5 



10.7 



8.3 



5.4 





o 



21 



28.5 



23.4 



21.2 



19.7 



18.1 



16.4 



15.3 



14.3 



13.1 



11.3 



8.7 



5.6 





2 



22 



30.2 



24.6 



22.2 



20.6 



19.1 



17.2 



16.0 



14.9 



13.7 



11.8 



9.2 



6.0 





1 



23 



31.8 



26.0 



23.2 



21.5 



19.7 



17.8 



16.6 



15.5 



14.2 



12.3 



9.7 



6.4 





2 



24 



33.5 



27.4 



24.1 



22.4 



20.5 



18.5 



17.3 



16.1 



14.7 



12.9 



10.2 



6.8 





1 



25 



35.3 



28.9 



25.3 



23.3 



21.3 



19.3 



18.0 



16.8 



15.3 



13.4 



10.6 



7.0 





2 



26 



37.0 



30.3 



26.3 



24.2 



22.1 



20.0 



18.7 



17.4 



15.9 



13.8 



11.0 



7.3 





1 



27 

 28 

 29 



38.7 

 40.5 



31.8 

 33.4 

 34.9 



27.3 

 28.3 

 29.3 



25.1" 

 26.0 

 26.9 



23.0 

 23.7 

 24.6 



20.8 

 21.5 

 22.3 



19.3 

 20.0 

 20.7 



17.9 

 18.5 

 19.1 



16.4 

 17.0 

 17.5 



14.3 

 14.8 

 15.4 



11.4 

 11.8 

 12.3 



7.6 

 7.9 

 8.1 













1 



30 





36.6 



30.3 



27.8 



25.3 



23.0 



21.3 



19.7 



18.0 



15.9 



12.7 



8.5 









100 













9( 



KFOO 



T TE 



EES. 















16 



20.6 



17.7 



16.4 



15.1 



13.9 



12.9 



12.1 



11.3 



10.3 



9.3 



7.9 



6.3 



4.3 





17 



22.3 



18.9 



17.4 



16.1 



14.7 



13.5 



12.7 



11.9 



11.0 



9.8 



8.4 



6.6 



4.5 





18 



24.0 



20.0 



18.4 



16.9 



15.6 



14.3 



13.4 



12.5 



11.6 



10.4 



8.9 



7.1 



4.8 





19 



25.6 



21.3 



19.4 



17.9 



16.3 



15.0 



14.1 



13.2 



12.2 



11.0 



9.4 



7.5 



5.1 



2 



20 



27.3 



22.6 



20.5 



18.8 



17.2 



15.7 



14.7 



13.8 



12.8 



11.5 



9.9 



7.8 



5.3 



3 



21 



29.0 



24.0 



21.5 



19.8 



18.1 



16.5 



15.5 



14.6 



13.5 



12.1 



10.4 



8.1 



O.D 



3 



22 



30.6 



25.3 



22.6 



20.7- 



18.9 



17.2 



16.1 



15.2 



14.1 



12.7 



10.9 



8.5 



5,7 



1 



23 



32.5 



26.7 



23.6 



21.7 



19.7 



17.9 



16.8 



15.9 



14.8 



13.3 



11.3 



8.9 



6.0 



3 



24 



34.2 



28.1 



24.7 



22.7 



20.6 



18.7 



17.5 



16.5 



15.4 



13.9 



11.8 



9.3 



6.3 



2 



25 



36.0 



29.6 



25.6 



23.6 



21.4 



19.5 



18.2 



17.2 



16.1 



14.5 



12.3 



9.6 



6.5 



1 



26 



37.6 



31.0 



26.6 



24.5 



22.2 



20.3 



18.9 



17.9 



16.8 



15.1 



12.9 



10.1 



6.8 



1 



27 



39.6 



32.6 



27.7 



25.5 



23.2 



21.1 



19.6 



18.6 



17.4 



15.7 



13.3 



10.5 



7.1 





28 



41.7 



34.2 



28.8 



26.5 



24.0 



21.9 



20.4 



19.3 



18.1 



16.2 



13.8 



10.9 



7.3 



i 



29 





35.9 



29.9 



27.5 



24.9 



22.7 



21.1 



19.9 



18.8 



16.9 



14.3 



11.2 



7.6 



l 



30 





37.5 



30.9 



28.6 



25.8 



23.5 



21.8 



20.7 



19.5 



17.5 



14.9 



11.7 



7.9 





18 



