206 llECIIEliCIIKS SCP, L\ COMPOSITION 



(U'lnonlro cliiireincnl (|ii(' Ics vcsiciilcs ic.insjKirciilcs ;i iiovaii rdfringonl , ol 

 (•('lies (|ui coiisliliKMil |)r('s(|ii(' (■\(liisi\ciii('iil Ic jaiiiic, ifoiil ricn (l(! conimuii 

 tn-cc (Ics (•(illiilcs dans Ic sens liislolo-iquc (in niol. 



III. -" Coiiiiiic ccllc tnuts/dniidlton drs fp-tuni/rs priiiii.l/fs da vilrllns vc 



(I.' r(.Mirs<Milcmni(, il en irsdllc (inc v^v. iKirlic ilii vilHIus, <nn coiismc 

 ,M's caniclrrcs primilils (cell.' (|ui riilomr iniiiinlialriii<-iil la vrsiculc i^rrmi- 



nalivc), sc (miivc hicniol irioiilrc <'ii M\ws dc coUc aulrc !)aHic, d I<'s 



<'l('iiiciils,('ii s(- iiKidiliaiil proiiTcssivcmciil,, voiiUonncr Ir jaiiiic on vilclliis 

 luilrilil' propiTinriil dil. I> fail iumis duiiiit- IVxplicalion dii mode dc Jonna- 

 lioii (!<■ la (•M'alncnlc; ell.' nVsl ([irnii.' parlic iioii modilioc dii vilrllns |n-i- 

 iiiilil', (UN, avcc la vrsiculo i,'(;nmiialivc, rsl, hiciilol iclouhr on iiii jioinl 

 do la surface do ToMd'; collo |»ailio osl ossoiiliolloiiK'iil, lonii.'o .lo j.n.lo- 

 |)lasino ol (roloinonis niili-ilils, do i^lobnlos vilollins, on siisponsion dans oo 



li(|Uido. 



Va\ rosnnio donr, los olonionls vosioidaiirs dn viu^llus d'nn (ouf nnir no 



-SOMI (|n<' dos ,-r; los vilollins niudilios; la oollnlo-(rnr, |)in-saii(, dans lo sani; 



(|ni la haiyiio los olonionls doni olio a hosnin, oial.oro nn prodnil pailion- 



lior, «|in osl do la sidislanoo nnlrilivo, ahsolnnioni oo lo loulo, aniro ooll.d<' 



j^landulairo pin'so ,l;n,s io li(|nid )nrrioior los nialoriaux nooossairos •, Tola- 



horalinn dos prniLnls (pfollo soorolo. Los olonionls vilollins sonl, pins on 

 nioins oonipl^-loni.Mil olalnnrs, .rapirs lo mio. <pi'ils ain-onl, a jonor dans lo 



ooiirs dn <lovo|opp <'nl : (piand ils sonl. doslinos a noiuTir los lonlos pro- 



niioros oollnlos oinlirvonnairos, ils oonsorvoni lour fornio, i\v ^:raiiulos ol i\v 

 polils -lohulos, (jiii rosloni snspondus dans lo pn.loplasnio ; (piand , an oon- 

 li'aii-o, ils sonl doslinos a iiuinTii- rondnyon, ils sonl olal.oros pins ooni- 

 ploloinonl; ils pronnoni in.o loniio vosionlairo ol, ooouponi dans Ju'iif luio 

 place dislinolo, on didiors ^\\y proloplasnio; ils oonslilnoni par lonr oiisonil)l(> 

 CO (|n(> Koicliorl a d(>si-n.' sons lo noni d(! r/7c///^v dr mlriunn. 



Jo forai ronianpior dos a pnvsoni (pio lo noin do vilcllns dr foriiialK),, , 



sidislanco dn jauno, nio parail Iros-nial choisi, pour co niolif surloni (pio, 



