Notebook No.168, 7 July 1851 - 21 or 22 July 1851

This notebook follows on from notebook 167, dates from 7 July to 21 or 22 July 1851 and relates particularly to Lyell’s visit to French Flanders and Belgium to compare Tertiary strata there with those of England, the results of which he published in 1852 “On the Tertiary strata of Belgium and French Flanders”, Quarterly Journal of the Geological Society, 1852, Vol 8, 277-370. Read at the Geological Society on 5 May 1852. The notebook starts before he left England, with to-do lists (“Mem.”) and notes on pages 1 to 5 including preparations for the trip. Geological notes start in Calais (these are not included in the publication) and mainly cover localities in the Cassel hill area south of Dunkirk where he explored several pits and quarries. Lyell makes frequent references to his friend Captain Le Hon, who accompanied him in exploring the Brussels area, had a fine collection of fossils and accurate knowledge of paleontology, and gave Lyell several fossils listed in the 1852 paper.

Index entry that appears in Index Book A5/5 (was A5/3) 1860:
1851
p.14 Old beach at Sangate [sic Sangatte] near Calais elevated 14ft above high water
p.16 - [Calais] subsidence of 100 feet indicated by Sangate [sic Sangatte] Cassel geol[og]y french flanders p.20 to 92

Index as appears in Notebook 168:
p.5 Burtin, index to his fossils
p.6 Calais, Artesian well section
p.10 [Calais] Sangate [sic Sandgate] section
The heading on page 10 ‘Sand gate, Calais’.
p.18 Calais, Ardres, St. Omer
p.20 Cassel, dip of beds
p.22 [Cassel] section of 7 hard beds, M. [Francois] Trepin [p.66 “Francois Treppin says that they sank a well at level of No. 3 p 22. I went down 100 ft.”][this may be a reference to Francois Crepin, Belgian botanist?]
p.24 [Cassel] fossils of No. 1 stony bed.
p.26 [Cassel] Caesar’s fort, yellow sand
p.26 [Cassel] Caton’s pit, fossils No. 4 p.22.
p.28 [Cassel] Nautilus, Turritella Nos. 2, 3, 7, 6.
p.30 [Cassel] Springs & clay
p.32 [Cassel] Black band, & No. 4
p.34 [Cassel] Cerithium giganteum
p.35 [Cassel] Caton’s pit, fossils of No. 1.
p.35 [Cassel] Flint pebbles in No. 4.
p.36, 27 [Cassel] Fossils of Caton’s pit [notes shells picked up by children]
p.38 [Cassel] Planque’s pit, fossils of
p.40 [Cassel] Planque’s pit faults
p.42 [Cassel] Planque’s pit drift
p.44 Cassel quarry, west slope, q[uer]y railway?
p.46, 47 [Cassel quarry] & fossils
p.48 Recollet, section
p.49 Railway pit fossils [notes specimens picked up by boys at Cassel]
p.50 Stone bed No 5. p. 22, fossils of
p.54, 52, 56 Nos. 2, 3, 4, 5, Caton’s pit, fossils of
p.58 Caton’s pit, beds between hard layers,
p.60 [Caton’s pit] No 6. larger series, fossils
p.62 Nos 7, 8, 9, 10, fossils
p.64 Nos 10 to 15. fossils
p.66 Caton’s pit, well sunk in
p.66 Chemin creux, smaller, fossils of [Chemin creux = sunken lane. Lyell (1852) refers to a deep lane in the Mont des Recollet area (p.330)]
p.68 Recollet, chemin creux, fossils of
p.70 Planque’s pit, bottom rock, fossils
p.73 Mr. Manners, fossils given by
p.74 Dunkirk road section
p.74 Cassel & Recollet section
p.76 Cerit, Gigant [sic Cerithium giganteum], in S.W. pit, fossils
p.78 No 5. p. 22. fossils of Caton’s
p.79 West pit, Arnic road section [page blank; notes are on p. 78]
p.80 Artesian well, railway station, London clay of
p.82 Cassel, hill, height of
p.83 No. 6. Caton’s pit, fossils of
p.84 Meugy, on Cassel beds
p.86 [Meugy] on Mons-en-Peville [sic Mons-en-Pévèle]
p.88 [Meugy] Instr[uction]s for Tournay
p.92 Cassel hill, 157 metres high
p.98 Boescheppe [sic Boeschepe] fossils, Meugy
p.98 Lille, & Mons-en-Peville, lowest tert[iary]. [sic tertiary]
p.100 Mons-en-Peville, excursion to
p.106 Cornet, Tournay, section
p.108 [Cornet] Landenian fossils
p.112 Brussels, Capt. Le Hon, Laeken beds
p.114 Galeotti, address of
p.114 Cerith. gigant. [sic Cerithium giganteum] Afflighem [sic Affligem]
p.116 St Gilles, excursion, plan of
p.118 Le Hon, on Bruxellian Localities
p.122 [Le Hon] on no London Clay at Brussels