Excerpt from American Journal of Botany, 1921, Vol. 8: Official Publication of the Botanical Society of America The 1919 experiment was a partial duplication an

This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawe

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced