This section is from the book "The Gardener's Monthly And Horticulturist V23", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
An intelligent and well-known contributor to the London Journal of Horticulture, Mr. G. Abbey, has examined a supposed successful case and seems to believe that it has been done. He can see where the grafting was done, but some room for doubt is furnished by his statement that the plum stock " has assumed the character of the bark and wood of the apple tree." It is easier to believe that the apple scion was originally set into an apple stock, than that the stem of a plum became transformed into an apple tree, for this must be an impossibility, or all we know of cell growth is wrong.