16 
BFLLETIX 933, IT. S. DEPARTMENT OF AGRICTTLTr/EE. 
Fig. 3. — Forest-crown black walnut tree. 
small end have been 
cut. and heights of 
125 to 150 feet are 
on record, although 
to-day trees 100 feet 
tall are rare. The 
average tree that is 
cut at present con- 
tains about 15 feet of 
merchantable length. 
When it has grown 
in the open, black 
walnut has the ap- 
pearance of an or- 
chard tree, with a 
short, clear bole and 
a round, spreading 
crown, which in sum- 
mer exhibits a mass 
of beautiful' foliage. 
In the . winter the 
coarse branching 
habit and the large, 
dark twigs usually 
make it easy to iden- 
tify the tree even at 
consider able dis- 
tances, although 
young and abnormal 
trees may sometimes 
be mistaken for ash 
or hickory. In the 
forest a typical 
black- walnut tree 
presents a tall, clean 
bole of little taper 
up to the lowest 
branches. At this 
point the identity of 
the main trunk is fre- 
quently lost, and a few 
large limbs spread out' 
to form a rounded 
crown at the level 
