Documents, depositions, etc., some incomplete, relating to the Petition of Walter Baker, Chymist, to vacate the Patent obtained by Dr. Robert James for the sale, use the benefit of 'James's Powder'. Contents: (1) Part Brief for Dr. James in the case Baker v. Dr. James. 'This contains only Baker's Proofs'. Initialed 'R.H.' (i.e. Robert Henley, 1st Earl of Northington [1708?-1772]). Written on the rectos only. (12 ff. atlas folio. 41 × 33 cm.). (2) Affidavits in support of Dr. James. Incomplete copy. Written on the rectos only. (2 ff. atlas folio. 41 × 33 cm.). (3) Answers by Dr. James to a series of 17 Questions. Incomplete, the first 2 ll. wanting, the last 3 damaged. (Pp. 5-26 + 7 bl. ll. folio. 37 × 23½ cm.). (4) James (R.). Holograph Deposition, incomplete. Written on the rectos only. (24 ff. 4to. 23 × 19 cm.). (5) James (R.). Fragments of a Deposition. Holograph MS. (4 ll. 4to. 26 × 20 cm.). (6) James (R.). Holograph notes for the preparation of his Defence. Written on the rectos only. (4 ll. folio. 23½ cm.). (7) Jackson (Humphry). Draft of an Affidait supporting Dr. James. With holograph[?] corrections. (13 pp. folio. 39½ × 25 cm.). (8) Drafts and copies of Affidavits in support of Dr. James: some damaged. (23 ll. v.s.). Produced in 104 ll. v.s. London.