text:  The difficulty in ascertaining the proportion of the produce of the soil taken as rent by the landlords in either country exists principally as regards the large holdings; because in England a great proportion of the farms are under tillage while in Ireland if not the whole by far the greater part of all the extensive farms are under grass; and the profits of the grazier vary so much that it is hard to form any correct estimate of the proportion of the produce taken by the landlord as rent and that left to the tenant as interest for the money employed in the purchase of stock