Giant and Dwarf Peas
These pods illustrate variation in peas of the same race. By selecting among the different plants grown from the same handful of seed, Mr. Burbank was able to make a dwarf variety, and at the same time to develop also several other varieties, including one or two very large ones, of quite different type. And progress was so rapid that the experiment was carried to a practical conclusion in three seasons.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 7 Chapter 3