In 1763, he read a paper before the Royal Society, on the "Effects of a Blow on the Heart," which was published in the _Philosophical Transactions_ of the year. And, in 1764 he established his character as a medical writer by an elegant and elaborate treatise on "The Dysentery," still, we believe, consulted for its information, and studied for the purity and precision of its Latin style. About this time, too, he commenced a recasting of his "Pleasures of Imagination," which he did not live to finish; and in which, on the whole, there is more of laborious alteration than of felicitous improvement. In 1766, Warburton, his old foe, who had now been made a bishop, reprinted, in a new edition of his "Divine Legation of Moses," his attack on Akenside's notions about ridicule, without deigning to take any notice of the explanations he had given in his reply. This renewal of hostilities, coming, especially as it did, from the vantage ground of the Episcopal bench, enraged our poet, and, by way of rejoinder, he issued a lyrical satire which he had had lying past him in pickle for fifteen years, and which nothing but a fresh provocation would have induced him to publish. It was entitled "An Ode to the late Thomas Edwards, Esq." Edwards had opposed Warburton ably in a book entitled "Canons of Criticism," and was himself a poet. The real sting of this attack lay in Akenside's production of a letter from Warburton to Concanen, dated 2d January 1726, which had fallen accidentally into the hands of our poet; and in which Warburton had accused Addison of plagiarism, and said that when "Pope borrows it is from want of genius." Concanen was one of the "Dunces," and it was, of course, Akenside's purpose to shew Warburton's inconsistency in the different opinions he had expressed at different times of them and of their great adversary. We know not if the sturdy bishop took any notice of this ode. Even his Briarean arms were sometimes too full of the controversial work which his overbearing temper and fierce passions were constantly giving him.