Table 

 The Genealogy of Blastomeres 



Comparison of Warnek's designations— stage numbers (in paren- 

 theses! in comparison with the recent literal-numerical. Cln 

 the square brackets the designation of the resulting blasto- 

 meres of the previous stage are repeated.) 



Key: 



558 



1 . Stage of division by Warnek 



5. The sixth 



2. The third 



6 . The seventh 



3. The fourth 



7. The eighth. 



4. The fifth 





