Princes and sovereign states have frequently fancied that they had a temporary interest to diminish the quantity of pure metal contained in their coins; but they seldom have fancied that they had any to augment it. The quantity of metal contained in the coins, I believe of all nations, has accordingly been almost continually diminishing, and hardly ever augmenting. Such variations, therefore, tend almost always to diminish the value of a money rent. The discovery of the mines of America diminished the value of gold and silver in Europe. This diminution, it is commonly supposed, though I apprehend without any certain proof, is still going on gradually, and is likely to continue to do so for a long time. Upon this supposition, therefore, such variations are more likely to diminish than to augment the value of a money rent, even though it should be stipulated to be paid, not in such a quantity of coined money of such a denomination (in so many pounds sterling, for example), but in so many ounces, either of pure silver, or of silver of a certain standard. The rents which have been reserved in corn, have preserved their value much better than those which have been reserved in money, even where the denomination of the coin has not been altered. By the 18th of Elizabeth, it was enacted, that a third of the rent of all college leases should be reserved in corn, to be paid either in kind, or according to the current prices at the nearest public market. The money arising from this corn rent, though originally but a third of the whole, is, in the present times, according to Dr Blackstone, commonly near double of what arises from the other two-thirds. The old money rents of colleges must, according to this account, have sunk almost to a fourth part of their ancient value, or are worth little more than a fourth part of the corn which they were formerly worth. But since the reign of Philip and Mary, the denomination of the English coin has undergone little or no alteration, and the same number of pounds, shillings, and pence, have contained very nearly the same quantity of pure silver. This degradation, therefore, in the value of the money rents of colleges, has arisen altogether from the degradation in the price of silver. When the degradation in the value of silver is combined with the diminution of the quantity of it contained in the coin of the same denomination, the loss is frequently still greater. In Scotland, where the denomination of the coin has undergone much greater alterations than it ever did in England, and in France, where it has undergone still greater than it ever did in Scotland, some ancient rents, originally of considerable value, have, in this manner, been reduced almost to nothing.