PLATE 5 



EXPLANATION OF FIGURES 



65 to 67 First spermatocyte late anaphases. Figure 65 is an oblique view. 

 Figure 66 shows polar views of the two poles. Figure 67 is an optical section at 

 one pole. 



68 Very late anaphase of first spermatocyte, a and c show the chromosomes, 

 while 6 is a cross section of the spindle fibers. 



69 First spermatocyte telophases, a and b show the upper pole; d and e, the 

 lower; c is a cross section of the spindle fibers. 



70 to 75 First spermatocyte telophases. 



76 to 79 Interkinesis nuclei showing nucleoli and chromosomes. 



572 



