Englands happiness increased, or, A sure and easie remedy against all succeeding dear years : by a plantation of the roots called potatoes, whereof (with the addition of wheat flower) excellent, good and wholesome bread may be made every year, eight or nine months together, for half the charge as formerly : also by the planting of these roots ten thousand men in England and Wales, who know not how to live or what to do to get a maintenance for their families, may of one acre of ground make thirty pounds per annum /