The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. Abstract of Müller, Facts and Argument for Darwin. CUL-DAR81.155. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 2.2022. 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-DAR80-86 contain material for Darwin's book Descent of man (1871).

Darwin cited this in Descent 1: 328-9, n4: "'Facts and Arguments for Darwin,' English translat. 1869, p. 20. See the previous discussion on the olfactory threads."

[155]

F. Muller Crust. Sexual Select

p 29 on inequality of legs

p 30 smelling Threads

31-32 Dimorphic males

39 2d case of Dimorphism How easily Lucanus cd be formed into 2 forms, great Pincers

41. Melita, with legs modified for pincers of male to hold on by

(62. zig-zag folding of antennae sexual)

116. Sexual differences great

117 not till adult & in some case - more female more abnormal than male, & young then resemble female.

118 goes on after sexual maturity

Used

/over

[155v]

Begin, sexes placed in distinct genera or Families owing to differnt habits as parasitic - not concerned with

Furnished with olfactory hairs - or organ for seizing - even females adapted to be caught - This perhaps necessary for procreation, & not dependent much on struggle between male & male

Then go on to unequal claw, & argue case. Fighting Then to colours.

Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)