PLATE 10 



EXPLANATION OF FIGURES 



72 Section of the germ gland of a larva 50 mm. long, showing only cell nests. 



73 Section of the germ gland of a larva 71 mm. long, showing only one grow- 

 ing oocyte. 



74 Section of the germ gland of a larva 65 mm. long, showing very few cell 

 nests, but numerous growing oocytes. 



146 



