1. Observations upon Cato, a tragedy by Mr. Addison : in a letter to ***. Creator: Sewell, George, -1726, author Published / Created: MDCCXIII [1713] Call Number: 1974 986 Image Count: 13 Resource Type: text Found in: Beinecke Rare Book and Manuscript Library > Observations upon Cato, a tragedy by Mr. Addison : in a letter to ***.