A supplemental apology for the believers in the Shakspeare-papers: being a reply to Mr. Malone's answer, which was early announced, but never published: with a dedication to George Steevens, and a postscript to T.J. Mathias
The "Shakspeare papers" referred to were the Ireland forgeries.
"Has for its principal objects, the studies of Shakspeare, the chronology of his dramas, the history of the stage, during his age, and of the Office of the master of the revels."--Dedication.