Another cause for the increased cultivation of the potato may be found in the poverty of the English colony itself. Whilst the people of whom that colony was composed, through the Parliament that represented them, pursued the Catholic natives with unmitigated persecution, they were themselves the object of jealous surveillance, both by the Parliament and the commercial classes of England. Long before the times of which I am writing, the English always showed uneasiness at the least appearance of amalgamation between the descendants of the Norman invaders and the natives, although their fears on this head were to a great extent set at rest by the change of religion in England, which change extended in a very considerable degree to the English colony in Ireland. After the Reformation there was not much danger of a union between the Catholic Celt and the Protestant Norman. Still another jealousy remained—a commercial jealousy. The colonization of Ireland meant, in the English mind, the complete extirpation of the natives, and the peopling of this island by the adventurers and their descendants; but it is a strange fact, that even had this actually happened, we can, from what we know of the history of the period, assert with truth, that still their commercial prosperity and progress would be watched, and checked, and legislated against, whenever they would even seem to clash, or when there was a possibility of their clashing, with the commercial supremacy of Great Britain. Not to go into all the commercial restraints imposed on Irish manufactures by the English Parliament, let us take what, perhaps, was the most important one—that imposed on the woollen manufacture. For a long period this branch of industry had flourished in Ireland. We not only manufactured what we required for ourselves, but our exports of woollens were very considerable. This manufacture existed in England also, and the Englishmen engaged in it were determined to have the foreign markets to themselves. After many previous efforts, they at length induced both Houses of the English Parliament to address William the Third on what they were pleased to consider a grievance—the grievance of having foreign markets open to Irish woollens equally with their own. To those addresses the King replied that he would do all in his power to “discourage” the woollen trade in Ireland, to encourage the linen trade, and to promote the trade of England.[41] Accordingly, a duty equal to a prohibition was imposed upon the exportation of