Canes of the Mayberry
The Japanese Mayberry is still undergoing development in Mr. Burbank's garden. Among other things, an attempt is being made to remove the thorns from the stems. Partial success has been attained, as these pictures illustrate. The tendency to variation here shown suggests indefinite possibilities of further improvement.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 6 Chapter 5