Many Steps Toward a Given End
Both of the flowers shown here are Shasta daisies, but the flower at the right, as compared with its mate, gives striking evidence of the improvement which may be wrought through selection - continuous, persistent selection. This flower is a recent Shasta, while the other represents the Shasta of a number of years ago.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 2 Chapter 1