Two years later, 1806, S. W. Johnson[64] and Bernard McMahon[65] published accounts of the cultivation of the vine. Johnson mentions three American varieties, the "Bull or Bullet grape, Bland's grape and the Alexander's or Tasker's grape." Johnson has nothing to say of the desirability of cultivating the above or other native sorts and confines his discussion largely to Legaux's work with European grapes. McMahon advocates the introduction of foreign grapes and says almost nothing about the native species. As American varieties he mentions those given by Johnson, omitting the Bull grape. One of the first, if not the first, extensive centers of native grape-growing in America was about York, Pennsylvania. In 1818, Mr. Thomas Eichelberger, an enterprising German vine-grower, set out four acres of grapes at this place and demonstrated that grapes could be grown successfully. The original vineyard was increased to about twenty acres and other plantations were made until in 1826 there were in the immediate neighborhood of the borough of York one hundred and fifty acres of vineyards. The account of these vineyards states further:[66] "In Adam and Westmoreland the culture of the vine is also attended to and one gentleman in Chester has a vineyard of thirty acres." The grape most commonly grown in this region was known to the growers as "Black or York Madeira" and was supposed to have been introduced from the Island of Madeira. Prince pronounced the grape to be a native and the then commonly grown Alexander. Other popular sorts in this region were the York Claret, a native resembling Alexander; and York Lisbon, described as "having considerable affinity to Alexander but having a larger and more acid fruit." Beside these there were several less well known sorts none of which is heard of now. Before the industry began to wane about York the Catawba and Isabella had taken the place of the first named sorts and these eventually succumbed for most part to grape diseases. In looking up the history of varieties of grapes for this work, a surprisingly large number have been traced back to this early center of the industry, so many that York and Lancaster Counties, Pennsylvania, must be counted among the starting places of American viticulture.