ATLAS OF FERTILIZATION. 



PLATE IV. 



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13. 

 THE SPERM-ASTER ENLARGING (P. 17). 



APPROACH OF THE GERM-NUCLEI, GROWTH OF THE SPERM-ASTER (P. 17). 



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THE SPERM-ASTER AND GERM-NUCLEI IMMEDIATELY BEFORE 

 UNION OF THE LATTER (P. 171. 



FIRST CONTACT OF THE GERM-NUCLEI, EIGHT MINUTES AFTER ENTRANCE 

 OF THE SPERMATOZOON |P. I8i. 



