262 



STUDY OF PIG EMBRYOS. 



to the ganglionic commissure which extends above the ^"'gin of the hypoglossal 

 nerve. On the left the continuity of this commissure is better shown than on the 

 right, where it offers two parts, one, com, entirely ganglionic, and another, com.II, 

 which comprises both the ganglionic portion and fibers which share in the forma- 



com.II '. 



JV.io. 



D.E. 



N. 7 ,8. 



Ven.IV 



F.b. 



FIG. 189. PIG, 12.0 MM. TRANSVERSE SERIES 5, SECTION 185. 



com, Ganglionic commissure between hypoglossal and vagus nerves. com.II, Ganglionic commissure with libers 

 of the root of the spinal accessory nerve. D.E, Ductus endolymphaticus. F.b, fore-brain. Md, Medulla 



1 ta. N.f,, Trigominal ganglion. N.-j,&, Acustico-facial ganglion. N.io, Jugular ganglion of the 



' >tocvst. Ven.IV, Fourth von*--'--'- ^' ^2 diams. 



TT large, some- 

 " hind- 



