“The principle upon which the whole matter depends is the same both in English and in Scotch law, and I should be inclined to think that it would be very much the same in every country, for it is the nature of things that causes it to be so. Where there is “produce,” such as minerals, which, when once taken away, is never replaced, it is in a very different position from, I may say, apples or fruits of that kind, which are annually reaped and which replace themselves. That they are different in the nature of things is obvious enough. When there is an estate consisting partly of minerals or things of that sort, and partly of annual produce in the other sense, such as fruits and the like, and that estate comes to a person with a limited interest, the remainder being in somebody else, the question would arise, What is to be done with the produce? The law of England, and I believe of every country, the feudal law and the civil law too, would say that in that case the person who has the limited interest takes, beyond all doubt, the annual produce, the grass, the apples, and things of that sort, and applies them to his own use as he pleases, as long as his interest lasts. But it would follow, from the strict rule which I have mentioned before, that minerals, whether the mines had been opened or not, would remain a part of the soil belonging to the person who was to have the ultimate interest in the soil: the remainderman, as he would be called in England, or the fiar as he would be called in Scotland, would take them all. “But very early there was introduced this in favour of the person who takes a limited interest,—that where, at the time when the person having a limited interest comes into possession, minerals have been already opened, whether coal-pits or quarries, or the like, the person who has that limited interest shall be at liberty to continue to work those coal-pits or quarries which have already been opened.... “I am inclined rather to agree ... that the original ground of all that was that there was supposed to be an irresistible indication of intention that he who conveyed the property for a limited time to a person with a limited interest intended him to work the opened minerals. I am inclined to think that it was upon that ground that the Courts originally acted throughout; and I quite agree with what Mr. Davey has said, that where there is a sufficient appearance of intention in the instrument to shew either that that should be restricted or that it should be extended, that intention would govern....”
“But I think it is a totally different case when you come to those works which were dealt with after the death of the testator. Whatever he left after his death, and had not dealt with during his lifetime – whether complete manuscripts or incomplete manuscripts – were necessarily of the nature of estate left behind by him, which it was the duty of the trustees to realise to the best of their ability.... I am clearly of opinion that the works which passed into the hands of the trustees as part of the testator’s estate, and which he had not dealt with except by leaving it to them, form part of the capital of the estate.”