To make this plain, let us glance back at the principles which assuredly ought to have been kept in view, in coming to sound conclusions on the subject of 'fair rent.' It will be seen that the Sub-Commissioners either gave little or no attention to these, or directly violated them in, perhaps, tens of thousands of cases. They have never attempted to establish some kind of standard, which would form a general measure of 'fair rent;' they have completely ignored the definition of Mr. Law, precise and most valuable as it was; they have treated 'Griffith's valuation' as though it did not exist; they have regarded the Report of Mr. Gladstone's Commission, declaring that Ireland was not excessively rented, as mere waste paper; they have apparently taken hardly any account of the well-known distinction between the low rentals of the great and old landlords, and the rack-rents too often exacted by purchasers under the Encumbered Estates Acts. So, too, it would seem, they have refused to consider the strong presumption that rents would be 'fair' if not raised during a long series of years, and if reasonably well paid, within that period; and they certainly have given no real weight, as an element in adjusting rent, to the agricultural progress made by Ireland since the Great Famine. Innumerable complaints have been made against their decisions as to the exemption of tenants' improvements from rent; but my belief is that they gave great attention to this subject; the wrong that has been done was owing to the difficulty of the law, and of its application to given cases; and the law, besides, was not, I think, just. On the correlative and most important question of the deterioration of farms through the default of tenants, they have hardly ever inquired into this; they have repeatedly done the landlords wrong; they have made grave and palpable mistakes; and in many instances they have made no allowances for the expenditure of landlords upon their estates. Having thus refused to follow the principles which ought to have been their guide, they have widely deviated in the actual fixing of 'fair rents' from rules and methods they should have observed and made effective. They have given too much weight to the class of evidence that was least important and most open to question; they have attached little and sometimes no value to the class of evidence by far the most trustworthy, and that ought to possess the greatest influence. This has especially been the case, as we shall see, with respect to the sums paid on the transfer of farms, the strongest possible indication that their rents must be 'fair,' on the ordinary principles of human nature, and giving the purchasers credit for the simplest common sense.