File:Buletinul Societatii de Sciinte din Bucuresci, România = Bulletin de la Société des sciences de Bucarest, Roumanie (1892-1911.) (20233599849).jpg

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Title: Buletinul Societatii de Sciinte din Bucuresci, România = Bulletin de la Société des sciences de Bucarest, Roumanie
Identifier: buletinulsocieta14soci (find matches)
Year: 1892-1911. (1890s)
Authors: Societatea de Stiinte din Bucuresti
Subjects: Science
Publisher: Bucuresti : Societatea
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: American Museum of Natural History Library

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644 BULETINUL SOCIETĂŢII DE SGIINŢE Dans le schema B, III on observe que Ies ostia sont fermds et on voit persister seulement Ies levres (v) qui donnent naissance aux valves.
Text Appearing After Image:
,-.-.V X ur Schema B Figures theoriques representant la derivation des valves. V, V =^ Ies Idvres des ostia. Conclusions i) Le coeur de toutes Ies Arthropodes est un organe unitaire, c'est-â-dire non divise en chambres cardiaques. 2) Sur le trajet du coeur apparaissent, selon Ies necessites, des formations mecaniques (ostia, valves) dont le nombre et la dispo- sition varient. Les valves separent la portion contractile du coeur de la portion qui ne se contracte pas. 3) La forme primitive du coeur des Arthropodes est celle d'un tube avec un grand nombre d'ostia segmentaires. Deux processus s'accomplissent sur cette forme le processus de reduction des ostia (ostia rudimentaires) et le processus de con- centration. Cest grâce â ces deux processus qu'on obtient comme forme d^riv6e le coeur sacciforme. 4) L'absence du coeur chez les Arthropodes est un pheno- mane secondaire.

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https://www.flickr.com/photos/internetarchivebookimages/20233599849/

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Volume
InfoField
1905
Flickr tags
InfoField
  • bookid:buletinulsocieta14soci
  • bookyear:1892-1911.
  • bookdecade:1890
  • bookcentury:1800
  • bookauthor:Societatea_de_Stiinte_din_Bucuresti
  • booksubject:Science
  • bookpublisher:Bucuresti_Societatea
  • bookcontributor:American_Museum_of_Natural_History_Library
  • booksponsor:American_Museum_of_Natural_History_Library
  • bookleafnumber:650
  • bookcollection:americanmuseumnaturalhistory
  • bookcollection:biodiversity
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
9 August 2015



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current18:25, 21 September 2015Thumbnail for version as of 18:25, 21 September 2015228 × 384 (17 KB) (talk | contribs)== {{int:filedesc}} == {{information |description={{en|1=<br> '''Title''': Buletinul Societatii de Sciinte din Bucuresci, România = Bulletin de la Société des sciences de Bucarest, Roumanie<br> '''Identifier''': buletinulsocieta14soci ([https://comm...

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