During Pope's last illness, it is said, a squabble happened in his chamber between his two physicians, Dr. Burton and Dr. Thomson, who mutually charged each other with hastening the death of the patient by improper treatment. Pope at length silenced them by saying, "Gentlemen, I only learn by your discourse that I am in a dangerous way; therefore, all I now ask is, that the following epigram may be added after my death to the next edition of the Dunciad, by way of postscript:-- 'Dunces rejoice, forgive all censures past, The greatest dunce has kill'd your foe at last.'" TRANSFUSION OF BLOOD. The experiment of transferring the blood of one animal into the vascular system of another, by means of a tube connected with a vein of the receiving animal and an artery of the other--which had been unsuccessfully attempted in 1492 in the hope of saving the life of Pope Innocent VIII.--was first tried in England in the year 1657 by Clarke, who failed in his attempts. Lower, of Oxford, succeeded in 1665, and communicated his success to the Royal Society. This was on dogs. Coxe did it on pigeons; and Coxe and King afterwards exhibited the experiment on dogs before the Society, transfusing the blood from vein to vein. It was again performed from a sheep to a dog, and the experiment was frequently repeated. The first attempts at transfusion appear to have been instigated merely by curiosity, or by a disposition to inquire into the powers of animal economy. But higher views soon opened themselves; it was conceived that inveterate diseases, such as epilepsy, gout, and others, supposed to reside in the blood, might be expelled with that fluid; while with the blood of a sheep or calf the health and strength of the animal might be transferred to the patient. The most sanguine anticipations were indulged, and the new process was almost expected to realize the alchemical reveries of an elixir of life and immortality. The experiment was first tried in France, where the blood of a sheep, the most stupid of all animals, according to Buffon, was transfused into the veins of an idiotic youth, with the effect, as was asserted, of sharpening his wits; and a similar experiment was made without injury on a healthy man. Lower and King transferred blood from a sheep into the system of a literary man, who had offered himself for the experiment, at first without inconvenience, but afterwards with a less favourable result; the Royal Society still recommending perseverance in the trials. These events were not calculated to maintain the expectation of brilliant results that had been raised; and other occurrences produced still more severe disappointment. The French youth first mentioned died lethargic soon after the second transfusion; the physicians incurred great disgrace, and were judicially prosecuted by the relations. Not, however, discouraged by this unlucky event, they soon after transfused the blood of a calf into a youth related to the