NEW CREATIONS IN PLANT LIFE 
different in form from the parent nuts and far 
more abundant, while possessing a unique and 
delightful flavor. The leaves upon the trees, as 
is noted in another chapter, are of many inter- 
esting varieties, and when rubbed in the fingers 
or crushed, or even when merely handled, give 
out a delightful fragrance somewhat like that 
of the apple, but as powerful and lasting as 
that of a rose or a lily. 
But to come to the main life-plan of the 
new trees, it appears that they are in some 
ways the most important contribution Mr. 
Burbank has made to the specifically commer- 
cial life of the world. A simple computation 
will illustrate this,—the results are so remark- 
able as to challenge one’s credulity, but they 
are results based solely upon facts, unadorned 
by any speculation. 
Mr. Burbank says that for the best commer- 
cial purposes the trees of either variety should 
be set out not less than forty feet apart, in 
order to allow ample space for each. The 
root system is very extensive, and there must 
be plenty of room for each tree below ground, 
as well as large allowance for the spread of the 
branches. About thirty-six trees to the acre is 
50 
