LUTHER BURBANK 
and some other conifers, retains its vitality for a 
short time only. If attention is given to the secur- 
ing of fresh seed, the experiments can scarcely fail 
to go forward successfully. 
There are, of course, almost numberless other 
species and varieties of conifers that hold out 
inviting opportunities for the plant developer. A 
beginning may be made with almost any varieties 
that chance to grow in your dooryard, and the 
facility with which the different varieties may be 
reproduced, together with the wide range of varia- 
tion, offer opportunity for selection and insure 
interesting developments, provided you have 
patience to wait for them. 
Some Decipvous Favorites 
But if there are no broad-leaved trees that 
quite equal the hardiest of the conifers in capacity 
to withstand cold and to draw nourishment from 
rocky soils under disheartening conditions, there 
are a few tribes of deciduous trees that make at 
least a commendable effort to rival them. 
Notable among these is the birch. But the 
beech and oak and maple and hickory and walnut 
also have representatives that are able to with- 
stand the winter in regions where the mercury 
freezes. 
All of these have a certain importance as orna- 
mental trees, but in the main they are valued 
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