We have, in violation of our usual practice, transcribed Mr Sadler's title-page from top to bottom, motto and all. The parallel implied between the Essay on the Human Understanding and the Essay on Superfecundity is exquisitely laughable. We can match it, however, with mottoes as ludicrous. We remember to have heard of a dramatic piece, entitled "News from Camperdown," written soon after Lord Duncan's victory, by a man once as much in his own good graces as Mr Sadler is, and now as much forgotten as Mr Sadler will soon be, Robert Heron. His piece was brought upon the stage, and damned, "as it is phrased," in the second act; but the author, thinking that it had been unfairly and unjustly "run down," published it, in order to put his critics to shame, with this motto from Swift: "When a true genius appears in the world, you may know him by this mark--that the dunces are all in confederacy against him." We remember another anecdote, which may perhaps be acceptable to so zealous a churchman as Mr Sadler. A certain Antinomian preacher, the oracle of a barn, in a county of which we do not think it proper to mention the name, finding that divinity was not by itself a sufficiently lucrative profession, resolved to combine with it that of dog-stealing. He was, by ill-fortune, detected in several offences of this description, and was in consequence brought before two justices, who, in virtue of the powers given them by an act of parliament, sentenced him to a whipping for each theft. The degrading punishment inflicted on the pastor naturally thinned the flock; and the poor man was in danger of wanting bread. He accordingly put forth a handbill solemnly protesting his innocence, describing his sufferings, and appealing to the Christian charity of the public; and to his pathetic address he prefixed this most appropriate text: "Thrice was I beaten with rods.--St Paul's Epistle to the Corinthians." He did not perceive that, though St Paul had been scourged, no number of whippings, however severe, will of themselves entitle a man to be considered as an apostle. Mr Sadler seems to us to have fallen into a somewhat similar error. He should remember that, though Locke may have been laughed at, so has Sir Claudius Hunter; and that it takes something more than the laughter of all the world to make a Locke.