After a Year in the Dark
The big cactus leaf shown here lay forgotten for one year, in a dark closet in Mr. Burbank's old homestead. By accident, the door of the closet was left open for a few days, allowed a faint light to reach it, and the slab responded by throwing out a large but sickly looking baby slab toward the light. During its year in the dark, this slab of course had no moisture except what was contained within itself and the only evidence of its deprivation is shown by the fact that at the bottom of the slab and in other spots the fiber has begun to turn to wood.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 1 Chapter 1