FORMATIOxM OF THE FIRST SPERMATOCYTE CHROMOSOMES 



FERNANDUS PAYNE 



PLATE 1 





■ff^- 



Q 



a (J. 



JO n 



12 13 



!4 





16 



I C C C e 8 • 



^ 18 ^to 19 29 21 22 23 24 



C G G C 



2S 29 



30 



583 



