This brown leather notebook contains diverse notes on British geology, and lists of queries for correspondents Blackadder, Humboldt, and Dr. Fleming. The front 3 pages are missing. Lyell's writing is a combination of steady, small copy hand, and hasty pencil observations. On p. 59, Lyell writes, "Hutton did not go as far as Moro". The list of questions on page 68 includes note 'Mrs. Murchison To ask Mary Anning for rate of waste at Lyme'.

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.

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p. 7, Capt[ain] Hall on Mississippi
p. 17, Mica schist, lines in a bolder
p. 17, White Buron, quarry sect[ion]
p. 18, Turfechy, n[ea]r Shelhill, sect[ion]
p. 20, White Buron + S[outh] Esk
p. 22, Red Sandst[one] of Angus fiss[ure] vert[ical] and diag[onal]
p. 24, Mr. Blackadder on basaltic debris at Kirkcaldy [et cetera]
p. 26, Dikes S[outh] of Kinross
p. 26, Forfar quar. shift.
p. 27, Fife, spotted tuff
p. 27, Powgain? section
p. 27, Dicotyl[edon] wood in coal
p. 28, Mytilus with Serpula in Fife coal field
p. 28, Tay, plan of the river
p. 29, [Tay] width of its estuary
p. 30, Clashbinnel shift
p. 31,32, [Clashbinnel] sections
p. 34, Zoolog[ical] epochs, Chalmers
p. 35, Ruthnea + Smithfield, veget[ation] impressions
p. 37, Noran, sandst[one]
p. 37, Auchlochy quarry, veget[ation] impressions
p. 38, Moran, old + present valleys of
p. 40, Addresses in Edin[burgh]
p. 41, Angus Map
p. 41, Primary rocks
p. 44, Craig Luth
p. 45, Corstorphine, sect[ion]
p. 45, Allans collect[ion]
p. 46, [Allans] quartz in lava of Somma
p. 46, Nice breccia, bones in,
p. 47, Steeles history of Peat.
p. 48, River deltas
p. 51, Calc. gross [...]
p. 54, Artistotle, extracts from
p. 60, Humboldt on volcanic erupt[ion] off Lancerok [et cetera]
p. 60, [Humboldt] on new isl[and] in Azores
p. 61, [Humboldt] on convuls[...] in Qiuto
p. 62, earthq[uak]e of Cumana
p. 62, [Humboldt] on Indian festival
p. 65, River of Falls of Niagara
p. 68, [...] delta of Ganges, reference to work
p. 68, Travelled blocks, d[itt]o
p. 68, Flood in Kent, d[itt]o
p. 69, Lake Ontario size, depth of
p. 69, North cliff, Yorksh[ire] bones [et cetera]
p. 71, Bow island, Capt. Foster on,
p. 73, Ducies island
p. 74, Matilda's wreck
p. 75, Jorullo erupt[ion] 1810
p. 76, Pyramid No. of cub[ic] feet in
p. 87, Goslau, chalk
p. 89, Turin Alps, double axis of elev[ation]
p. 95, Blackadder, Mr. Queries for,
p. 96, Fleming Dr, queries for