Bythetimethatthebaseoftheeleventhcellisreached,thetransversalpartitionisoncemorealmostperpendiculartotheaxis。
Herewhathappenedatthebottomisrepeated。Thereisnolongitudinalpartition;andthespaciouscell,coveringthewholediameterofthecylinder,receivesafemale。Theedificeendswithtwotransversalpartitionsandonelongitudinalpartition,whichmarkout,onthesamelevel,chamberstwelveandthirteen,bothofwhichcontainmales。
Thereisnothingmorecuriousthanthismixingofthetwosexes,whenweknowwithwhatprecisiontheOsmiaseparatestheminalinearseries,wherethenarrowwidthofthecylinderdemandsthatthecellsshallbesetsingly,oneabovetheother。Here,theBeeismakinguseofatubewhosediameterisnotsuitedtoherwork;sheisconstructingacomplexanddifficultedifice,whichperhapswouldnotpossessthenecessarysolidityiftheceilingsweretoobroad。TheOsmiathereforesupportstheseceilingswithlongitudinalpartitions;
andtheunequalchambersresultingfromtheintroductionofthesepartitionsreceivefemalesatonetimeandmalesatanother,accordingtotheircapacity。
CHAPTER5。PERMUTATIONSOFSEX。