(fols. 1-61) an essay by R.L. Edgeworth, c.1778, on Mrs. Barbauld's Lessons for children, from two to three years old (1778), written in the form of a letter to her (lacking fols. 1, 46-47, 50, 60-75 of the original foliation) (fols. 62-68) two copies of part of the essay in the hand of Mary Sneyd (fols. 69-70) comments on the essay in an unidentified…