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.
There is so little difference in the time of ripening of the Concord, Hartford Prolific, and Telegraph, that for amateurs there is little to choose between them. The writer made careful tests this season, in order to test the value of each, and would as soon have the Telegraph as any of them. The Hartford drops from the bunch so early as to amount to almost a defect, especially as a grape is not fully at its sweetest when merely black. The Telegraph is no better than a Concord or Hartford, when fully ripe; but a Telegraph sweetens sooner than any of these. Still there is little to choose between them, except where one is in the marketing business, when even a day in ripening is of consequence.