Introducing Color to Pears
Here are pear seedlings that not only show wide diversity of form, but almost equally wide variation in color. It has previously been pointed out that the pear usually lacks color. Here, obviously, particularly in the specimen shown in the center, is opportunity for the development of pears having richly colored skins like those of the apple. Mr. Burbank's experiments in this direction have already had interesting results.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 4 Chapter 4