Mr. Burbank at Work
In the foreground of this print it will be seen that three of the flowers are separated from the rest by being tied with white string. As he goes about his gardens, Mr. burbank picks out those flowers which come nearest his ideals and marks them thus that their seed may be saved. The entire process of marking and recording not only flowers but all other plants will be explained in the proper place.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 1 Chapter 6