NERVOUS SYSTEM OF THE EARTHWORM 147 



J . 1 UllUCl \JL Ht-LlllAlVlH-ill-J. j '"jT* i*^J-' J - ii - 1 - \j-iv* "^ 7 7 - ~ i \ 



ps, prostomium; r.s., seminal receptacle; 5.<f., sperm duct; s.f., sperm tunnel; 



5../., lateral seminal vesicle; *, testis; v.g. and w.w.c., ventral nerve cord, (fl 

 Sedgwick and Wilson.) 



