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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 certain to drop a specimen here or there by accident or to bury it where it is forgotten, thus inadvertently helping the parent tree to scatter its progeny into new terrritories.

Exposed Treasures

This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 11 Chapter 4