This dark brown leather notebook with yellow edged pages contains notes by Charles Lyell primarily in ink and include lists, sketches, and longer form essays, chiefly notes on the Crag and Crag fossils. The index is located on p. 71, the final leaf and back inside cover.

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.

No[tebook] 71 Index May to Aug[us]t 1838
p. 5,11,12, Meulien, Made[Madame or Mademoiselle]
p. 1,4,5,12,62,97, Mem[orand]a
p. 8, Margaric acid
p. 11, Silkiman, sheets sent to
p. 10, Silurian fossils, list of
p. 12, Elements, N[umber] of pages of
M.S. + type in
p. 28, [Elements] to whom given -
p. 12, Box Moor + Watford geol[ogy]
p. 13, Ivinghoe + Steps hill
p. 13,14, Chalk escarpment
p. 13,14 [Chalk] outlier
p. 16, Hartwell n[ea]r Aylesbury
p. 17, Tertiary, absence of
p. 16,18, Aylesbury limestone
p. 18, Leighton buzzard
p. 23, [Leighton buzzard] + Tring, stratif[iactio]n of the
country between, nearly
horizontal
p. 24, Linsdale section
p. 25, Charlesworth's notes on
Crag district
p. 29, Grays fossils, Sowerby on
p. 31, Stutton d[itt]o
p. 32, Shells, works on
p. 37, Bunbury, M[oun]t on Crag
p. 47, Gibsons pits, Ilford
p. 50, Fairholme, extract from
p. 51, Pairfleet, Greenhithe
p. 52, Ipswich Museum
p. 54,56, Sudbourn park
p. 56, Brinkley's farm, pit
p. 58,60, Chaplins pit
p. 64, Sudbown, diagonal
stratification
p. 64, [Sudbown] London Clay at
p. 64, Clarke on dip of London
Clay + Crag
p. 54,66, Collections of fossils
p. 66, Aldringham pit
p. 66, Friston, pit at
p. 68, Haslewood pit
p. 68, Aldborough pit
p. 68,70, Thorpe pit
p. 72, Southwold sect[io]n
p. 72, Alexander, Capt[ai]n on D[itt]o
p. 83,95, [Alexander, Capt.] on Easton fossils
p. 86, [Alexander, Capt.] on Elephants tusk
with serfule[?]
p. 94, [Alexander, Capt.] on Happisboro' [sp] fossils
p. 76 to 83,94, Easton Bavent section
+ fossils
p. 84,118,122, Mastodon
p. 86,88,120,106, Bramerton, fossil verte[-]
brata
p. 88,90,92,98,106, [Bramerton] foss[il] shells
p. 91, Whale, earbone fossil
p. 95, Reydon pit, Southwold
p. 96 Foss[il] bones bought at
Kessingland

p. 112 Postwick section
p. 97,102,105,109,123 - fossils
p. 106 Fitch, Mr on Brameston fossils
p. 120 [Fitch, Mr] on foss[ils] marn[?] in alia
p. 104,108 Norwich Crag
p. 110,123 Cassis fossil
p. 110 Whitlingham
p. 112,114,116,118,68,70 Thorpe section & fossils
p. 118,122,124 Wigham's Collection
p. 122 Echini in flint
p. 122 Bird, fossil at Thorpe
p. 124 Cement to join shells
+ bone

Addresses
p. 11 Arago
p. 7 Cantor, Dr
p. 88 Callcott
p. 9 Dixon
p. 33 Flower
p. 88 Fitch
p. 5 Grant Capt[ai]n
p. 72 Gurney
p. 6 Holst
p. 12 Ingham
p. 104 King
p. 6 Sly
p. 66 Self
p. 104 Wigham