SPERMATOGENESIS OF THE CHICKEN 



ALICE M. BORING AND RAYMOND PEARL 



PLATE 6 



^ ^ ^ it i 



70 



71 72 73 ^^ 



<^ •> f 



75 



76 



77 



78 7 9 



iH ^ 



80 



81 



82 



83 84 



!► * A 



85 



86 



87 



^ 



«^ 4^ 



W^ 91 



88 



89 90 



83 



