RECORD: Darwin, C. R. [1869-1874]. Abstract of Cox, Geological survey of Indiana, 1869. CUL-DAR88.162. Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 9.2021. RN2
NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volumes CUL-DAR87-90 contain material for Darwin's book Descent of man 2d ed. (1874-1877).
See CUL-DAR88.153[162]
Mr Rufus Haymond p 227 of Prof. Cox, Geolog Survey of Indiana says positively that the Bonasa umbellus or Ruffed Grouse drum by striking wings together behind back & not as Audubon thought by beating its sides.
(Used)
Vol. 2. p 61 of my book corrected
Cox, E. T. 1869. First annual report of the Geological Survey of Indiana, made during the year 1869. Indianapolis: Alexander Conner, State Printer. [CUL-DAR240 / CUL-DAR88.153] PDF
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 22 August, 2025