Adlum did not write from theory alone for he was the owner and cultivator of vineyards near Georgetown, in the District of Columbia, where he grew both native and foreign grapes. The latter he finally discarded with the statement that the way to success in America "is to drop most kinds of foreign vines at once (except a few for the table) and seek for the best kinds of our largest native Grapes". The best information from Adlum's pen regarding native grapes and their culture is to be found in the _American Farmer_, published in Baltimore. He wrote mainly during the years 1824 to 1830. He was neither a clear nor an accurate writer and his imagination and enthusiasm had full sway at all times; yet, notwithstanding these faults, he must be counted as one of the geniuses of his day, as devoted to the welfare of the country, as having almost a prophetic vision, and as actuated by the best of motives. His struggle for a national experimental vineyard, the work of his pen, his dissemination of the Catawba and other grapes, and his vineyard experiments, give Adlum a high place among the improvers of American grapes. John James Dufour gives the next glimpse of the beginnings of American viticulture in his _Vine Dresser's Guide_ published in Cincinnati in 1826. It is but a glimpse, however, for Dufour was a foreigner, and, as we have seen, came to America to grow the Old World grape. His efforts at grape-growing furnished the climax to the two centuries of failures in growing _Vitis vinifera_ in America but did not benefit the new viticulture of the country greatly.[70] His only contribution of note was one made in spite of himself, namely the introduction of the Alexander, which he incorrectly called Cape, an American grape, as a commercial variety, Legaux having first brought it prominently to notice. Dufour would never admit that this variety, the only one to succeed in his vineyards in Kentucky and Indiana, was a native grape and says of it in the preface of his book: "I will also try to save the character of our Cape grapes from being made merely wild grapes, because some are now found in the woods; and, to put any one in the way to distinguish wild from tame grapes, I will give the description of the botanical characters of the blossom of both sorts." In his text he fulfills the promise in the preface and devotes some pages to "save the character of our Cape grapes." Dufour's visit of inspection of the vineyards of the country in 1799 has been noted in discussing the Old World grape. In this trip only foreign grapes interested him and he mentioned the wild species but to condemn them for cultivation. In his book published twenty-seven years later he shows no change of opinion and though at this time there were a number of meritorious native sorts he describes only European varieties. Dufour was a true foreigner and could find little of value in the New World that did not come from the Old World.