James Wilson, The evolution of British cattle and the fashioning of breeds…
“ Eventually, as in the south of England, the Longhorn overran the most desirable parts of the country, and, at the time of Arthur Young's visit (1776-78) they and their cousins that had been graded up from the original black Celtic stock, and were now for the most part pure Longhorns, were in possession of the great central plain of Ireland, from one side of the country to the other, and of the fertile valleys and smaller plains running into it from both sides: the native cattle having been driven into the higher and less fertile regions to the north and to the south. ”
