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Title: The descent of man, and selection in relation to sex
Identifier: descentofmansele187301darw (find matches)
Year: 1873 (1870s)
Authors: Darwin, Charles, 1809-1882
Subjects: Evolution; Natural selection; Sexual selection in animals; Human beings -- Origin; Sexual dimorphism (Animals)
Publisher: New York : D. Appleton and Co.
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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Text Appearing Before Image:
SG6 SEXUAL SELECTION. (Part II. with any other family of theColeoptera or beetles. With some species the males are provided with weapons for lighting; some live in pairs and show mutual affection • many have the power of stridulating when excited; many are furnished with the most extraordinary horns, apparently for the sake of ornament; some which are diurnal in their hab- its are gorgeously colored; and, last- ly, several of the largest beetles in the world belong to this family, which was placed by Linnaeus and Fabri- cius at the head of the Order of the Coleoptera.67
Text Appearing After Image:
Fig. 23. — Chiasoenathus grantii, reduced figure, male ; lower figure, female. Stridulating organs. — Beetles belonging to many and widely-dis- tinct families possess these organs. The sound can sometimes be heard at the distance of several feet or even yards,68 but is not comparable with that produced by the Orthoptera. The part which may be called the rasp generally consists of a narrow slightly-raised surface, crossed by very fine, parallel ribs, sometimes so fine as to cause iridescent colors, and having a very elegant appearance under the microscope. In some cases, Upper for instance, with Typhceus, it could be plainly seen that extremely mi- 67 Westwood, ' Modern Class.' vol. i. p. 184. es Wollaston, On certain musical Curculionidae, ' Annals and Mag. of Nat. Hist.' vol. vi. 1860, p. 14.

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Flickr tags
InfoField
  • bookid:descentofmansele187301darw
  • bookyear:1873
  • bookdecade:1870
  • bookcentury:1800
  • bookauthor:Darwin_Charles_1809_1882
  • booksubject:Evolution
  • booksubject:Natural_selection
  • booksubject:Sexual_selection_in_animals
  • booksubject:Human_beings_Origin
  • booksubject:Sexual_dimorphism_Animals_
  • bookpublisher:New_York_D_Appleton_and_Co_
  • bookcontributor:MBLWHOI_Library
  • booksponsor:MBLWHOI_Library
  • bookleafnumber:380
  • bookcollection:biodiversity
  • bookcollection:MBLWHOI
  • bookcollection:blc
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
25 August 2015

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