Let me first quote from Brande’s Dictionary the opening definition that shows how naturally, and as it seems, unconsciously, writers speak of “processes,” as the great or only subject-matter:— “The word Patent is commonly used to denote a privilege accorded to an inventor for the sole use of some process by which an object in demand may be supplied to the public; or some product already familiar to the public may be made more easily and efficiently.” So the commencement of a Paper on Patents, in the last volume of the Proceedings of the Association for the Promotion of Social Science—in the following words, “The point asserted in the following paper is, that in a grant of Letters Patent, the subject of the grant is a ‘process,’ and not ‘product’”—shows as decisively the complete change that has taken place, and, let us not forget it, without consent of Parliament, who indeed have never been consulted. The alteration of the practice, which is nothing less than a new law—a law diametrically opposed to the spirit of the statute—is the work of the courts of judicature. Better principles might have been expected to prevail, for how just is the following reflection, taken from the most important “Treatise on the Law of Patents:”— “Every member of the community receives many benefits from the society in which he lives, and he is therefore bound, by every means in his power, to advance its interests. And it seems to be but reasonable that he should be expected to promote the public weal by putting the community in possession of any discovery he makes which may be for the public good.”