The American journal of anatomy . a Figs. 3 and 4 mediate type. All gradations to perfectly equal division may befound. Something like 30 per cent of all eggs show markeddeviation from equality. On the other hand, cases in which thesecond plane divided the egg unequally are very rare, one of whichis shown in fig. 8. Konopacka (08), in centrifuged eggs, observed that the nucleusin eggs showing unequal first cleavages was displaced this has happened in these eggs. In the egg shown infig. 7, the formation of the second furrow was seen. Fig. 7a DEVELOPMENT OF SPELERPES BILINEAT
The American journal of anatomy . a Figs. 3 and 4 mediate type. All gradations to perfectly equal division may befound. Something like 30 per cent of all eggs show markeddeviation from equality. On the other hand, cases in which thesecond plane divided the egg unequally are very rare, one of whichis shown in fig. 8. Konopacka (08), in centrifuged eggs, observed that the nucleusin eggs showing unequal first cleavages was displaced this has happened in these eggs. In the egg shown infig. 7, the formation of the second furrow was seen. Fig. 7a DEVELOPMENT OF SPELERPES BILINEATUS 181 represents the beginning while fig. 76 shows later changes. Thefollowing day the cleavage was indistinguishable from ordinaryeggs. A normal embryo finally resulted. Another type calledBarock furchung by Hertwig, previously noted by Born (86),is shown in fig. 9, h representing a later stage of the same egg,
Size: 1597px × 1564px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1901
