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.
In the Gardener's Monthly for January, Editorial Notes, page 20, you speak of the sugar-bearing quality of the sap of the butternut, Juglans cinerea, and ask if any of your readers know anything about it. I can answer for one. It produces as much sugar as the sugar maple, of a very dark color, but the sugar is reported a purgative a drastic as senna and manna.
[In addition to the above, we have this from Mr. W. F. Bassett, Hammonton, N. J. - Ed.]
"Sugar from the butternut. I have been informed by those who had tried it, that the sap of the butternut yields a large amount of sugar, but that it is decidedly purgative and rather harsh in its operation."