SUPPLEMENTARY MITCHELL PAPERS. Vol. XLIX (ff. 60). Correspondence and accounts, chiefly concerning fishing; 1742-1751. Contents: 1. ff. 1-40v. Correspondence and accounts of John Burnett, of Aberdeen; 1742-1748. 2. ff. 41-60v. Letters from John French of Aberdeen; 1749-1751.
SUPPLEMENTARY MITCHELL PAPERS. Vol. LIII (ff. 189). Correspondence and accounts with Splitgerber and Daum, bankers, of Berlin; 1756-1770. French and German.
SUPPLEMENTARY MITCHELL PAPERS. Vol. LIV (ff. 93). Receipted accounts for general merchandise; 1756-1768. French and German. Contents: 1. ff. 1-84v. From J. Kirkland and Blanck, of Berlin; 1756-1766. 2. ff. 85-93v. From Peter Joachim Blanck, of Berlin; 1766-1768.