The letters appear to be to John Murray II and to John Murray III. They are arranged chronologically.

1821, 1824, 1826-1829: folios 1-37 [Note 1];

1831-1835, 1839: folios 38-63;

1840-1842, 1844-1848: folios 64-121 [Note 2].

Notes.

[Note 1] Folios 28-29. Letter, [January 1829], of James Markland to John Gibson Lockhart.

[Note 2] Folios 118-119. Incomplete letter, 18 April 1848, of [? Charles Freeling] to James Markland. The letter was enclosed in James Markland’s letter to ?John Murray III of 20 April 1848 (folios 116-117).