LUTHER BURBANK 
even though they be insipid, and see if, between 
the two, by matching heredities, there is not to 
be found some new berry which is luscious, large 
and beautiful. 
Or, supposing that in our own particular soil 
there are varieties we should like to grow which 
fail to prosper, while other less desirable varieties 
do well. 
Our problem then is but the combination of 
heredities to bring the desirability of one with the 
hardiness of another into a single new plant which, 
as it were, we make to order. 
Or, if there is a variety which will not 
withstand the rigor of our winters, perhaps it can 
be combined with a poorer variety which has been 
educated to them. ; 
Or, the other way around, if there is a plant 
which withers in the heat of our summers, perhaps 
some combination can be effected with an already 
existing brother or cousin, which, throughout the 
generations, has conquered the obstacle of heat. 
And so on throughout the whole world-wide 
range of environment. 
We shall find plants which have grown accus- 
tomed to the wet, and plants which are hardened 
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