Asks SPW to have obsidian specimens and book [Dieudonné de Gratet de Dolomieu, Voyage aux îles de Lipari (1783)] ready when he comes.
Down near Bromley | Kent
Would you oblige me by getting the following specimens, ready for my inspection on
Wednesday Morning about 12 oclock—viz. a set of obsidian &
other allied rocks, presented to the Soc: in 1838 by M
Perhaps, I may not be able to come till 2 oclock, but will you have them ready by 12 & I shall be much obliged.—
Your's very faithfully | C. Darwin
- f1 652.f1Woodward was sub-curator of the Geological Society 1839–45. CD was then writing Volcanic islands (14 October 1842 – 5 January 1844). CD visited London on Wednesday 16 November, as recorded in his Account Book (Down House MS).
- f2 652.f2In Volcanic islands CD was concerned to explain the laminated structure of volcanic rocks such as obsidian. The specimens in question were collected by Frederick Edmonds in Mexico and sent to John Taylor, Treasurer of the Geological Society, who presented them to the Society (Proceedings of the Geological Society 2 (1833–8): 686). In Volcanic islands (p. 66 n.), CD referred to the collector as ‘Edwards’.
- f3 652.f3Dolomieu 1783. CD cited Dolomieu's descriptions of laminated volcanic rocks in Volcanic islands (pp. 63–8).