TAliLES UF MEASUKKMENTS. 



115 



20 40 60 80 100 120 140 160 180 200 220 240 



fiGEOFD/Sf< 



riCi. o8. — Diagram allowing diameter growtb of domiuaut trees at various lu;igblH from grouii<l in Michigan. 



"0 20 40 60 80 100 120 J40 160 180 200 220 240 



/ICE OF DISK 



Flo. ;iU.— Diagram showing diamuLLT giowtla of (:odomiu;uit trutje at various Iiuighla irom ground in Michigan. 



