160 



five Our an;: - - iw that thi tudy did not attain 



a diameter breast height of six inches until th« 



If we allow approximately one-half of the seven hundred and twenty-four, 



or three hundred and fifty, to remain at the age of seventy, and reduce 

 this number by a series of intermediate acceleration thinnings, to the final 

 forty at the age of one hundred and fifty, we get the following result: 



Number 





X umber 



Number 







Number 





Age, 





Tr. 



Age, 



F. • • 



Per A 



Years. 



B. M. 



Per Acre. 



Year-. 



B. M. 





f70 



3.. 500 





ling. 





350 



SO 



5 . 250 





160 



13,400 





90 



14.000 







170 

 180 



16.200 

 18,400 





Thinning. 









190 



21.400 





100 



11.375 



40 



■ 



200 



25 . 200 



175 



- 110 



17,500 







210 



29.000 





120 



24.500 







220 

 230 



33.200 

 38,200 





Thinning. 









240 



43 . 800 





'130 



14.450 









85 



• 140 



19.125 











150 



23 . 375 











While the problem of reforestation with oak is somewhat more difficult 

 than that connected with coniferous plantations. neAertheless these figures 

 look interesting, to say the least. It is true that there is little material that 

 *ually merchantable that can be looked for under one hundred years. 

 There are many poor plots of land, however, on nearly every farm in Indiana 

 which at present detract from the value of the whole property. If these 

 plots were planted with even so slow growing a tree as the white oak the 

 result would be an increase in the value of the entire property many years 

 before the trees themselves actuallv attained merchantable size. 



