( 194 ) 



TABLE XXVI. 



Systematic Survey of the Organ- Systems of the Iluman Body. 

 (N.B. The origin of the separate organs from the four secondary gerrn- 

 layers is indicated by the Roman numerals (I. IV.) : I. Skin-sensory layer ; 

 II. Skin-fibrous layer; III. Intestinal-fibrous layer; IV. Intestinal-gland. 

 ular layer.) 



O. digestiva ) TTT ,., 

 0.respiratoriaj IIL + U - 



Cceloma, II. + III. 

 Vasalympha-i 



tica ill. + III. 



V. sanguifera | 

 Cor, III. 



Renes 



Urocystii III. + IV. 



Gonades 



(I.Ovaria)III. + IV.(:^ 

 (II. Testes) I. + II. (:)' 

 Gonophori . 

 (I. Oviduc- I 



tus) 

 (II. Sperma- 



ductus) / 

 Copuhitiva \ 

 H. Vagina) i I. + 11. 



