Geoscience Reference
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Figure 8.1 Adam Sedgwick
(1785-1873) (from Geological
Magazine 7 (1870), facing p. 145).
Figure 8.2 Roderick Impey
Murchison (1792-1871) c. 1870.
On the table on his left lies a
copy of his Silurian System on
which is resting a geological
hammer. Photograph by Maull
and Polyblank, Piccadilly
(author's collection).
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