DEVELOPMENT OP TAPE.W0RM8. 



155 



through multiplication by division of the nucleus (germi- 

 native cell). In the eggs of Tcenia baciUaris E. Van Beneden 



Fie im.— Tfmin solbim. Nat. size, 

 with the liead maguilied. Slrobila stage. 

 —After BeDeden. 



Fig. 104.— Head and proglottieof 

 T. solium. — After Benedeu. 



saw the nucleus subdivide ; after passing through a morula 

 condition the cells are arranged in two layers, and the outer 



