The letters seem to be mostly to John Murray III.

1850-1851, 1853-1854, 1856-1859: folios 1-55;

1860-1861, 1863-1868: folios 56-88 [Note];

1870: folios 89-90.

[Note] Folios 83-84. Letter, 20 August 1867, of Roderick Murchison to Robert Cooke.

Undated letters of Roderick Murchison to ?John Murray II and to ?John Murray III: 91-101.

Related papers.

Manuscript note, in Roderick Murchison’s hand, headed “Murchison’s ‘Siluria etc’”. Folios 102-103.

Four pages (265-268) of marked proofs, ?1854, of “Siluria. The history of the oldest known rocks containing organic remains” (London: John Murray, 1854), by Roderick Murchison. Folios 104-105.

Letter, 4 August 1874, of K.R. Murchison to John Murray III. With the letter, as an enclosure, is a photographic portrait of Roderick Murchison by Edward Sims, Tunbridge Wells, from an original photographic portrait by John Watkins. Folios 106-108.

Photocopy, 1976, of a manuscript note, ?1845, in the hand of Roderick Murchison: “Honors to Geology”. Folio 109.