23 



The following form (No. 3) shows how the measurements are finally 

 collated for computing the growing stock of the grove : 



Form No. 3. — Showing the computing of growing stock hy means of average sample trees. 





Diame- 

 ter at 

 breast 

 height. 



Number 

 of trees 

 of each 

 diame- 

 ter. 



Basal area 



of each 

 diameter. 



Sample tree. 







Name of species. 



(Average height, 



60 feet.) 



Average dimen- 

 sions. 



Sample 

 tree No. 



Volume. 



iug stock. 



Basal 

 area. 



Corre- 

 spond- 

 ing di- 

 ameter 



Cubic 

 feet. 



B. M. 



Cubic 

 feet. 



B. M. 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



Oak .. 



Inchet. 

 8 

 9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 



23 

 76 

 87 



172 

 43 

 97 



115 

 84 



164 



181 

 46 

 67 

 88 



118 

 78 

 32 

 64 

 85 



Sq.feet. 



8.03 



33.58 



47.45 



113. 52 



33.77 



89.41 



122. 94 



103. 08 



228. 99 



285. 31 



81.29 



131.92 



191. 99 



283. 83 



205. 91 



92.33 



201. 06 



289. 75 



Sq.feet. 





1 

 2 

 3 

 4 

 5 



46.2 

 48 3 

 44.8 

 47.5 

 42.1 



180 

 204 

 156 

 192 

 148 













































1.56 



16.9 





Total 



1,620 



2, 534. 16 









~~ 





74, 196 



285, 120 



A veragre 











45.8 



176 





10 

 11 

 16 

 19 















Hard maple 



26 

 75 

 91 

 21 



14.18 

 49.50 

 127. 06 

 41.35 



1.09 



14.1 



1 



32.7 



120 







Total 



213 



232. 09 













6,965 



25, 560 





12 

 14 













Hickory 



63 

 16 



49.48 

 17.10 



0.84 



12.4 



1 



25.5 



90 







Total 



79 



66.58 













2,014 



7 110 





16 















Ash 



56 



78.19 

 45.71 



1.46 



16.4 



1 



43.8 



168 









17 



29 





Total 





85 



123. 90 













3,723 



14, 280 





21 

 22 

 24 

 25 













Black walnut... 



5 

 12 



12.03 

 179. 51 

 34.56 

 40.91 



2.78 



22.6 



1 



83.4 



336 







Total 



96 



267. 01 







1 i 



8,006 



32, 256 











1 1 





Total contents, 94,904 cubic feet; 364,326 B. M. 



Having recorded in columns 1 to 9 the measurements and calcula- 

 tions of all the trees and of the respective sample trees for each species, 

 the volumes in columns 10 and 11 are found by multiplying the volume 

 of the sample tree by the number of trees of each species, and to obtain 

 the volume of the growing stock of the whole grove the last two col- 

 umns are added up, which addition shows the grove to contain 94,904 

 cubic feet of wood, from which 364,326 feet B. M. might be obtained, 

 the balance to be turned into slabs, sawdust, firewood, etc. 



