Various, Popular Science Monthly (1913)
“ Because of these points of superiority in the Old World grape, since Valk, Allen and Rogers showed the way, American grape-breeders have sought to unite by hybridization the good characters of Vitis vinifera with those of the American grapes. Nearly half of the fifteen hundred grapes cultivated in eastern America have more or less vinifera blood in them. Yet despite the efforts of breeders few of these hybrids have commercial value. Whether because they are naturally better fixed, or long cultivation has more firmly established them, the vine Leaf and Fruit of a White Cultivated Labrusca. ”
