The Freestone Indian Peach
In his extensive experiments in breeding better varieties of peaches. Mr. Burbank has followed his usual custom of going to all countries for material with which to make crossbreeding or hybridizing experiments. This Indian peach has been utilized chiefly because of its freestone quality. The tendency to loosen the flesh about the stone as the fruit ripens is, fortunately, a hereditable quality.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 4 Chapter 5