448 George Arnold, The Prophase in the Ovigenesis and Spennatogenesis etc. 
Fig. 39. Late prophase of 2nd. matnration division. 
Fig. 40. Metaphase of 2nd. maturatiou division. 
Figs. 41 & 42. Daughter cells of 2nd. maturatiou division (spermatids). 
Figs. 43 & 44. Two nuclei showing stages in the formation of the archo- 
plasmic vesicle. 
Figs. 45—46. Breaking down of the ckromatic body (c) to form an outer 
covering to the vesicle. 
Figs. 47 a — 53. Farther stages in the formation of the Spermatozoon. 
Fig. 49 b. Transverse section of fig. 49 a. 
Figs. 52a & 52b. Transverse secticn, Spermatozoon (nuclear region , lying 
close to the cytoplasmic remains. 
Fig. cb. Chromatic body of the Ist. maturation division. 
Fig. c. 
2nd. 
Fig. a. 
Archoplasm. 
n ?» 
