(a 
Spinal cord 
i] 
FiGe2. 
Longitudinal f- 3) \WX& , 
Muscles 7 
ae: be Dorsal aorta 
Salto (ae 
ke Segmental 
op eee [i> auick 
a A She EL ot a \ 
Se Palos ed aS 2 | 
\s_(\. -4Qesophagus 
\ ), 
) } 
pS cate ar 
RMepaticiissuc=:_ss-5—< 9 
Fic ILA 
K, .- Portal vein 
'~\ Mesenteric 
~\? Arteries 
/-Pancreas 
———— Muscle layer 
= Pigment layer 
J.J del. 
Section of liver, showing pancreas round a vein, x 225. 
Fic. 1. B. Section of a part of the mesentery, x 22. 
Fic. 2. 
Part of a transverse section of a 12 days’ old larva. 
Fic. 3. Transverse section of ovarian wall, x 26. 
ree AN. 
