This black Notebook is annotated with Lyell's name, address at 73 Harley Street, London. The Notebook begins with the end a tour of Devon - started in the previous Notebook 257 - with Lyell in Barnstaple. Mostly written by Buckley, there are sections of very poor writing at times, which could be Lyell's own. From Devon to Bristol Clifton Bridge and Bath. Time following up queries and visiting the British Museum in London is followed by train to Glasgow with Mary and Leonard, then to the Isle of Arran, first visited in Notebook 62. Returns to Glasgow then rail and steamer to Loch Lomond, Inversnaid, Loch Katrine and the Trossachs' They are at Shielhill before heading south to the Lake District. Lyell returns to London, to follow up various queries and meetings. Barton Hall then onto Downes, and a 'Second Devonshire Tour' touring and revisiting places as far south as Penzance. Lyell then corresponds with people who are in or have worked in, Australia. Notebook finishes with a list of people to whom he has given copies of Principles.

The following table of contents is Lyell's secretary Arabella Buckley's own words transcribed from digital surrogates using the platform Transkribus. When known abbreviations and contractions have been expanded using brackets []. When writing is unclear, and transcription is not possible, this is denoted using [?...]. The inclusion of [sic] indicates the misspelling of a word is deliberate and taken from the notebook.'Do' and " are replaced by 'ditto'. Brackets () indicates Lyell's own use of brackets.

1870
Index
Devonshire
p. 1.Barnstaple geology
p. 4 Biddeford
p. 6 submerged forest
p. 10 Westward Ho outlier of Red Sandstone
p. 12 Biddeford [sic Birdeford] carboniferous
p. 18 new Red of Crediton
p. 20 [At Bath] Mr. Winston [refers to Hooker and Captain Mansel] no glacial moraine on Lebanon [cedar not place]
p. 23 With Gunther on Ceratodus etc-
p. 24 No glacial action on Eifel.
p. 24 Huxley on age of Neanderthal man
p. 31 Carruthers British Museum on Prototaxites [sic Proteaceae]
p. 32 Mitchell on Bournemouth leafbeds
p. 35 Glasgow with Leonard
p. 35 Prof Young & Mr. Young [at Old College Museum]
p. 36 Erect trees in volcanic ash
p. 40 Corrie to Sannox- erratics
p. 40 – 44 Laggan tree-bearing beds
p. 44 Loch Ransa [sic Lochranza]
p. 46 [? Wunsch or Wuncht] on Arran granite
p. 50 Torridgneion [sic] junction of slate & granite
p. 52 Granite veins at Easchnabearach
p. 55 Goatfell 2856 Feet
p. 56 Knocken glaciated boulder
p. 58 Boulder-clay of Arran etc
p. 64 Drift- shells
p. 66 Corrie to Brodick
p. 68 Loch Lomond & the Trossachs
p. 72. Cardwell [is Coldwell in the Notebook] quarry with Orthocerata & Phacops
p. 77 Windermere lake & sec[tion]. of Coniston Limestone
p. 80 Queries for David Forbes as to mineral terms
p. 83 Volcanic rocks- notes -
p. 85 With Duke of Argyll on Quinnaig [in Notebook as Queenaig, sic Quinaig]
p. 87. with Dr Percy - Huxley on New Zealand coal
p. 90 Steenstrup on Proto-Lyelli
p. 92 Carpenter - Sunday lecture on deep- sea [on deep sea dredging in Straits of Gibraltar]
p. 96 Wexford Irish drift with Etheridge
p. 97. Phoetic Beds
p. 99 Specific gravity of Mediterranean
p. 103. Mr Moore-Conversation on radiation
p. 104 Darwin on Coquimbo Terraces
p. 106 Ramsay on Italian lakes once under the sea
p. 109 Second Devonshire Tour
p. 109 C. Moore on [? Telerpeton] beds
p. 110-113, 120 Blackdown Hills
p. 113 Minehead anticlinal of red sandstone
p. 117 Lynmouth to Barnstaple - quarries
p. 118 Contorted Culm measures on sea coast
p. 123 Batelock Mine [sic Botallack]
p. 125 Cretaceous series in Highgate Tunnel
p. 125 Launceston
p. 127 De la Beche on St Agnes sands
p. 126 Truro estuary
p. 128 Redruth
p. 130 Landsend granite columns
p. 131 Raised beaches & submerged forests
p. 132 Laur on gold mines - Diamonds
p. 134 Falmouth to Plymouth - Devonian
p. 136 Dartmouth granite – glossy slates
p. 140 Newton Bushel – Seaton etc
p. 142 Salisbury Red Marl & Greensand
p. 147 Foreign members of Geol. Society
p. 149 Brown - on Demerara Basaltic formations
p. 151. Sir G. Young - Waterfall of Esquibo
p. 151 Daintree – Diprotodon etc of Australia
p. 154 Queensland lavas & Wellington caves
p. 156 Presentation copies of Principles