Mary Scott's The Female Advocate; a poem occasioned by reading Mr. Duncombe's Feminead (1775) is both a celebration of women's literary achievements, as well as an impassioned piece of advocacy for women's right to literary self-expression.
Title page of Mary Scott's The Female Advocate (1775)
John Duncombe (1729-1786) published his "canon-forming" celebration of British women writers as The Feminiad in 1754, though the title was revised as The Feminead in the second, 1757 edition.
Title page of John Duncombe's The Feminead (1754), 2nd edition (1757)(Google Books)