This notebook contains short, individual indexes relating to Charles Lyell’s 13 notebooks [references Coll-203/A1/185-197] on his geological travels around Madeira and the Canary Islands, covering his arrival in Madeira in 1853 through to his manuscripts and letters created back in London in late 1854.
The first page details his route through the islands, by year and place, with the corresponding Scientific Notebook given. Each individual Scientific Notebook from 185-197 is then also given a short index. These indexes have been used to catalogue those notebooks in that series.
This Index Notebook also contains indexes to his later Manuscript [M.S.] notes and letters, created with Georg Hartung, and a on pg. 115, a list labelled “Madeira Drawer”, which lists items, maps, drawings, for example 'Eckensberg & Photograph Drawings' as well as a note of shell tracings by J.B, Horner based on Webb & Berthelot [a firm link back to Coll-203/2 Folio 399-412], an alphabeticised list of items [possibly letters?] and a list of the books.
This notebook then, is a comprehensive summary of all the data acquired by Lyell, and contributed or supplied by others, on his study of the Canary Islands and Madeira.

Index to
p.
1. Note Book 185. From p.74 Maderia 1853
7. [Note Book]. 186. Dec. 1853.
13. [Note Book]. 187. Jan[uar]y. 1852. Porto Santa [o?]
19. [Note Book]. 188. 1854. Maderia. S. Vincent.
27 [Note Book]. 189 – 1854. Madeira N. Coast -
36 [Note Book]. 190.- [1854 Madeira] Pico Ruvio– S. Jorge.
43 [Note Book]. 191 [1854] Cape Girau. Po. So. Shells. (116)
47. [Note Book]. 192 – 1854. Index to all s. gr [crossed out] Lagoa – Porta da Cruz
54. [Note Book]. 193. - 1854 Teneriffe [sic] - G[ran]d Canary
66 [Note Book]. – 194 – Grand Canary. Teneriffe [sic]. Palma
77 [Note Book]. – 195 1854 – palma – Tenneriffe [sic] p.83
84 [Note Book]. – 196 – Teneriffe [sic]. Guimar.
89. [Note Book]. 197 Tenneriffe [sic] to p. 9. & then London.
91. Index to M.S. notes with Hartung, Madeira etc.
104. - [Index to] Hartung, notes on Madeira. 264 pp.
115. List of Contents of Madeira Drawer.