STRUCTURE AND MODE OF ACTION OF "OVAL." 



565 



'in-net* Iay*** 



Layev* 

 Mas<l<S 





Oj'cftJ'w^ cj- Oval 

 [■nTo ^e.riet'o.l 

 ififtddter CAv'ily 



OvaI 



&ADUS 



POLLACHIUS 



-CA|5illAfy 



"CircuUr 

 Mu&cles 



Fig. C. Sem;. Jc6eA Oval . R^.^ q^^'^' q^^, 



