Vol. IX.. (ff. 56). Contains:-(a) Letters from C. B. Vignoles to his son Charles, 25 Jan. 1836 (f. 4), from William Fairbairn, F.R.S., to C. B. Vignoles, 18 May, 1838 (f. 7), and from others whose names are given in the index;-(b) Accounts of Vignoles, when a lieutenant quartered at Edinburgh, 1...