B 

 Fig. 52. — Myriapods. A, Centipede, Lilhobius forfwatus; B, Millipede 



Julus. (Modified, after Koch.) 



Fig. 53. — Primitive Insects. A, Silver-fish, Lepisma; B, Springtail, Podura. 



(From Parker and Haswell.) 



92 



