15 
In Table VII is given the board foot content per acre for an 
ideal stand of each diameter class. The bole has been taken 
at forty-five feet and all the trees have been assumed to have 
the same taper. 
TABLE VII. ASH 
Yield per Acre 
D.B.H. Board Feet 
Bi faeces eae eee eae 29,300 
iO scaaias hic duke S Se MASA Rew eedelt aca aS Gua dl aden lalincs 27,400 
MON lid. nad babe in ieee eeseens ates 25,400 
HED Oe ccs tenons Aart Aine Atentacemieaita noe doteeN ae cath Remo eRS 24,700 
T2O eat ev eerie gene witha ade mand Me waa naeas 24,400 
DBO wresicye seed raptor et sate sed ue RoE ny gon nya ace gama 23,200 
The yield decreases with increasing diameter of stem. In 
the table we have not considered cordwood, which would 
increase the yields of the larger diameter classes. This, 
however, need not be considered as the volume of the wood 
involved is slight and the aim of the investigation was to as- 
certain the greatest financial return from saw timber. 
Before considering the ash further, the results for oak will 
be given. It has already been mentioned that ash differs 
materially from oak when grown in high forest. This is fully 
borne out by a consideration of Table VIII, which gives for 
oak the relations between diameter, height, clear bole, and 
crown radius. 
TABLE VIII. OAK 
Height Bole Crown Radius -_ Equivalent 
D.B.H. in Feet in Feet in Feet Trees per Acre 
11.2 78 40 8.8 179 
12.1 80 38 9.7 147 
13.0 82 37 10.6 123 
14.0 81 34 11.4 107 
15.0 83 33 12.5 89 
16.0 84 31 13.6 75 
17.1 83 29 14.8 63 
17.9 84 28 15.5 58 
19.0 83 27 16.6 50 
20.0 83 22 17.5 45 
Basis 193 trees. Age 60-70 years. 
