MSS.3356-3382 comprise journals and memorandum books documenting the various phases of McCormick's career, as follows: MS.3356, sketchbook relating to West Indies and South America voyages, 1824-1825; MS.3357, journal of voyage north of Spitsbergen in the Hecla, 1827; MS.3358, notes of lectures on natural philosophy by Robert Jameson (1774-1854) at Edinburgh University, 1830-1831; MS.3359, diary of voyages to West Indies and South America, 1830-1832; MS.3360, half-pay diaries (7 volumes), 1830-1838; MS.3361, diaries covering 1823-1830, fair copy; MS.3362, sketch book covering voyages in North Sea and West Indies, 1832-1833; MS.3363, diary covering blockade of Dutch coast and voyage to West Indies, 1832-1834; MS.3364, diary of a walking tour in Devon (apparently part of a longer journey of which the other journal volumes are not extant), 1834-1835; MS.3365, diary while fitting out the Antarctic expedition of the Erebus, 1839; MSS.3366-3368, diaries written during the Erebus Antarctic expedition (15 volumes), 1839-1843; MSS.3369-3370, meteorological and ornithological logs respectively of the Erebus Antarctic expedition, 1839-1843; MS.3371, half-pay diaries (4 volumes), 1843-1845; MS.3372, memorandum book on Arctic discovery, chiefly compiled during the voyage of the North Star as part of the search for Sir John Franklin, 1848-1852; MS.3373, diary while fitting out the North Star as part of the search for Sir John Franklin, 1852; MSS.3374-3380, diaries written during the voyage of the North Star as part of the search for Sir John Franklin, 1852-1853; MSS.3381-3382, meteorological tables and sketches respectively, made during the voyage of the North Star as part of the search for Sir John Franklin, 1852-1853. MS.8682 comprises loose miscellaneous material, chiefly printed, relating to various phases of McCormick's career: evolving versions of his Narrative of a Boat-Expedition up the Wellington Channel in the Year 1852 (London: Eyre and Spotteswoode, 1854), plus testimonials, printed items by other authors including the Arctic traveller Dr. Richard King, publisher's advertisements and newspapers.