LUTHER BURBANK 
develop on their own roots. Unlike most other 
trees, the chestnut should not be grafted until just 
before the bark begins to slip in the spring. If 
grafted much earlier it is necessary to protect the 
grafts by tying a paper sack over them until they 
start growth to prevent evaporation; but in every 
case it is better to wait till shortly before the bark 
begins to slip. This is unlike the cherry, which 
must be grafted very early or success is extremely 
doubtful. 
When grafting is performed after the bark 
begins to slip, it is necessary to tie down the bark 
against the graft with a string to keep it in place, 
otherwise it rolls away from the graft and union 
does not take place. If grafting is done at the right 
time and with reasonable care, it is usually 
successful. 
In the main, very little attention has been paid 
to the chestnut by cultivators of nuts, Until very 
recently, such chestnuts as have appeared in the 
market have been gathered from wild trees, or, 
imported from Europe. Recently, however, the 
possibility of cultivating the chestnut has gained 
a good deal of attention and in a certain number 
of cases orchards have been started. I have intro- 
duced three different varieties of hybrid chestnuts, 
one of them known as the Hale, another as the 
Coe, and the third as the McFarland, and these 
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