This section is from the book "The Gardener's Monthly And Horticulturist V21", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
A vagrant vine of Isabella that came straying over to a trellis by which I had recently planted some vines, entwined a vine of feeble habit, and thus suggested to my mind the idea of joining the robust and well established vine with the weak one. As soon as the vines were about ready to enter mid-summer rest, or were through active growth, I carried the idea out by cutting from each vine a thin slice of corresponding size and binding the cut surfaces together. The union was prompt and solid. I make this note not to announce anything new. but to suggest to those who have vines they do not desire to keep, and who want to start young and feeble vines into quick growth, that grafting grape vines is a very simple operation if done when the sap is thick or as growth has about ceased.