RECORD: Darwin, C. R. n.d. Temp 38° 40° C / Hydrochloric / Propionic / Butyric / Valerianic acids. CUL-DAR60.2.50. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 12.2022. RN1
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-DAR 54-61 contain material for Darwin's book Insectivorous plants (1875).
[50]
[table not transcribed]
[50v]
From these experiments
We see that both with [Hydro] & Butyric acid the powers of digestion is less than half of what it is at a temp of 38°-40°; & we speaking roughly these 3 acids are of with the acetic series are about one third as powerful for digestion as Hydrochloric acid
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 19 February, 2023