This Thing Of Darkness (113 page)

As to the geographical descriptions, the vast majority were obtained by personal visits to the actual locations. FitzRoy and Darwin themselves provided plenty of supplementary assistance, as did
A Journey in Brazil
by Louis Agassiz (1868, modern ed. by Praeger, Westport, CT, 1970),
Giants of Patagonia
by Captain Bourne (Ingram, Cooke & Co., 1853), and
The Narrative of the Honourable John Byron
(Baker & Leitch, 1778). John Campbell’s
In Darwin’s Wake
(Waterline, 1997) provided specific information regarding the
Beagle’s
South American anchorages.