This notebook, of brown leather contains diary like entries in full sentences, accompanied by illustrations; cross sections, detailed, labeled. Subjects include granite, schist, St Laure, Puy Gros, Cantal basalt, two pages cut or ripped near the end of the notebook. The front cover plate reads; "No. 4 France Mt Dor to Brassac June 16th to the 27th 1828"

The following table of contents is Lyell's own words, copied from Lyell's own "Index", found at the beginning and end of the notebook, transcribed from digital surrogates using the platform Transkribus. When known, Lyell's abbreviations and contractions have been expanded using brackets []. When writing is unclear, and transcription is not possible, this is denoted using [...]. Quotation marks are Lyell's own notation for ditto, as is the abbreviation "d'o". The inclusion of [sic] indicates the misspelling of a word is deliberate and taken from the notebook.

p. 1, St. Laure
p. 1, Village of Lussade foot of Puy Gros
p. 3, Bort
p. 4, Valley of La Roche - Salins
p. 6, St. Chamand (fine capping of trap)
p. 8, [St. Chamand] section
p. 20, Section bet[wee]n Polminbac + Aurillac
p. 25, Lavergnol section
p. 30, Belbet d[itt]o
p. 34, Crandille
p. 36, Bruel
p. 36, Queille (Aurillac)
p. 40, Bancou valley of Ce
p. 44, Vic en Carladez to Rouillac
p. 46, Thiezac
p. 62, S[ain]t Flour
p. 62, Brassac coal field