A Practically Perfect Plum Tree
This tree has perhaps been allowed to run up a little too high, and its branches have not been quite adequetely thinned; yet on the whole it may be said to represent a practically perfect type of plum tree. Note the wide horizontal spread, bringing the main bulk of the fruit within reach of the picker when standing on the ground.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 5 Chapter 6