ON SUPHiVTIEXAL P.ODIES IX THE MOUSE. 



287 



Fig. 10. From the loth day embryo, llioht side. A. tlie 

 place marked ^ in the woodcuf 7. 2 x E. P». tlie pl.ice marked ^^ 



2xF. 



i'Vy/. ii. From the IGtli (hiy embryo. Left side. More 

 maonitied tii^nre of woodcut 8. oxJ)D. 



t'ig. 12. From the Killi (biy embryo. Rio-ht side. M..re 

 magnified fionre of woodcut Î) A. 3 x J^D. 



I'ig. IP). From tlie 18th day em1)i-yo. Fi-om the posterior 

 part of the left .suprarenal. 2xE. 



Fig. 11. From tlie IStli day embryo. Fi'om another em1)rvo. 

 Central portion oi a .section, taken near tlie j^ostci-ior end of the 

 right suprarenal. ox])D. 



Fig. IT). From the 1 day old mouse. Right su])rarenal. 



3xD. 



Fig. IC). From the o days old mon.se. 2xF]. 



Fig. 17. From the o day.s oM mouse. Another speeimen. 

 Rosterior end of the lefi suprarenal. Move magnified fioufe of 

 woodcut 2. R). 



Fig. IS. From a mouse about 10 days old. 2 x E. 



Fig. 19. From a mouse about 10 days old. Medulla is 



weakly developed. 2 x F. 



Fig. 20. From a mouse aliout 10 days old, another specimen. 

 The remnant of the connection with the sympathetic. 



2 X E. 



Fig. 21. From a mouse about 1 month old. 2 x E. 



Fig. 22. From an old wild mouse. 2xE. 



Fig. 2S. A p;u't of the right su[)rareiial from an old mouse. 



2xE. 



