Spinal cord 



Fig. 2 



Longifudinal^ / 

 Muscles /'"A-i 



Glomus 



Nephrost-ome-//^V:: 0_- ^ 





.,VNo^©cho^d 

 "^ • ^ j\Dorsal aor^a 



1 »/\ ^j].^^--\Nephrost"ome 



• ' y ■ ViPronephric 

 /fTr/ "T chamber 



Segmenra) 

 duel- 



'• Oesophagus 



Sfroma 



Fig. 3 



Fig I B 



v-jiyiin Mesenteric 

 Ari-eries 



O-'-fPancreas 



Exf- 



Pigmenf layer 



J J (!Cl 



Pig. J. A. Section of liviT, showiii.^ piiuci-cas i'duikI a vuiii. ■- '22.3. 

 Pirr. 1. B. Section of a iiai't of the nioscntpry, x 22. 

 Fig. 2. Part of a transverse section of a 12 flays' old laL\u, 

 Fiu. :3. Transvcvso «eutiou of ovunau wail, x 2(3. 



