CRANIAL SYMPATHETIC GANGLIA IN THE PIG 



85 



SP-^ 



M a 



Fig. 10 Photuinicrograph of pura.sagittal section near median surface of max- 

 illary nerve, embryo of pig 27 mm. in length. Ma, maxillary nerve; S, semilunar 

 ganglion; Sp, sphenopalatine ganglion. 



6,0^,5 



S 



Ot 





Fig. 11 Parasagittal section near median surface of mandibular nerve, embryo 

 of pig 17 mm. in length. E, eustachian tube; Jug, jugular vein; Man, mandibu- 

 lar nerve; Ot, otic ganglion; *S, semilunar ganglion. 



Fig. 12 Parasagittal section near median surface of mandibular nerve, embryo 

 of pig 21 mm. in length. Jug, jugular vein; Man, mandibular nerve; Ot, otic 

 ganglion; S, semilunar ganglion. 



