. On the anatomy of vertebrates [electronic resource] . er part of theoviduct called the isthmus,denser layers of albumen areagain excreted, forming thef membrana putaminis, , A, d. So inclosed, andhaving acquired its ovateform with the small end to-ward the cloaca, the eggpasses into the i uterine orshell-forming dilatation, , k. Artificial coagulation ofthe albumen or white ofan egg enables one to de-monstrate its disposition inspirally deposited is at the latter stage ofthe eggs formation that thespiral structure of the cha-lazae becomes apparent. Thetime of the pass
. On the anatomy of vertebrates [electronic resource] . er part of theoviduct called the isthmus,denser layers of albumen areagain excreted, forming thef membrana putaminis, , A, d. So inclosed, andhaving acquired its ovateform with the small end to-ward the cloaca, the eggpasses into the i uterine orshell-forming dilatation, , k. Artificial coagulation ofthe albumen or white ofan egg enables one to de-monstrate its disposition inspirally deposited is at the latter stage ofthe eggs formation that thespiral structure of the cha-lazae becomes apparent. Thetime of the passage of theegg from the infundibulumto the uterus, in the Com-mon Fowl, is from four tosix hours. Here it may remain from twelve to twenty hours. Onentering the ( uterus, a thickish white fluid exudes from the innersurface of the cavity and condenses on the tf membrana putaminis,forming thereon a cellular matrix in which soon appear particlesof calcareous matter, which from the shape they assume in theinterstices of the matrix appear to be Stages of egg in oviduct, ccevm. 254 ANATOMY OF VERTEBRATES. 132
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