Exposed Treasures 
Fortunately the 
bur of the chestnut 
opens spontaneously, when 
the nuts are ripe. Now 
they invite the squirrels to 
which they were hitherto 
altogether inaccessible, and 
the little rodents are cer- 
tain to drop a specimen 
here or there by accident 
or to bury it where it is 
forgotten, thus inadvert- 
enily helping the parent 
tree io scatter its progeny 
into. new territories. 
