And now vile poets rise before the light, And walk, like Margaret's ghost, at dead of night. The allusion was to the ballad of William and Margaret, written by Mallet. He was the ally of Pope and Bolingbroke, and when Pope was dead he was employed by Bolingbroke to blast the memory of their former friend.[1] The mention of Margaret's ghost gave Warburton the opportunity of appending a bitter note upon Mallet, whom he accused of "arraigning his dead patron for a cheat," and the leaf was cancelled to get rid of both note and variation. Mr. Croker believed that Warburton "forged" the variation to gratify his spleen against Mallet, whom he detested, and that before the volume was published "either his own conscience, or some prudent friend, suggested that such manifest fraud would not be tolerated." The conjecture was unfounded. Pope presented several of his manuscripts to the son of Jonathan Richardson, the portrait-painter, for his trouble in collating them with the printed text. Richardson's interlined copy of the first quarto volume of Pope's poetry passed into the hands of Malone, and was ultimately bought by Mr. Croker. The manuscripts which Richardson possessed in the handwriting of Pope were purchased by Dr. Chauncey, and are still the property of his descendants. Among them is the Prologue to the Satires, and it contains the couplet Mr. Croker believed to have been forged. In every instance where the manuscripts exist the variations printed by Warburton are found to be authentic.