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Figs. 1-4, portions of transverse sections of the cuticle, the cuticular processes shown only in outline ; 

 in Fig. i the outline of the fibrous cuticle is shown. (Zeiss homog. i mm. jV, oc. 2.) Fig. 5, sur- 

 face view of a portion of the cuticle, showing both tubercles and papillae (the latter darker) 

 (Oc. 4,obj. C.) Fig. '), surface view of the cuticle, seen in water, to show only the arrangement 

 of tin- groups of papillae, the tubercles not being shown. (Obj. A, oc. 4.) 



