2S6 M. IX AB A. 



Explanation of Figures. 



tic. cor. = accessory suprarenal. A()= Aorta. Art. c.=cœliac artery. 

 Bv.=N'ciiis. cor.=cortical cells, c. Y.=central vein of Suprarenal 

 l)0(]ics. l)iai;'.=Dia[)liragni. <i. o.=Generative organ. Kid.= 

 kichu'v. Med.=Me(lulhu"y cells. Mes.=Mesentery. S. r.=Supra- 

 renal body. IS. t.= Segmental tuljules. Sy. f.=Synipatliedc nerve 

 fibres. Sy. g.=Synip;ithetic ganglion cells, v. car.=cardinal veins. 

 V. c.= \ ena ca\ a. \V. D. = Wolffian duct. 



Fig. 1. From the 11th day embryo. Right side. Taken from 



the level of the ind segmental tubule. 2 x E. 



Fig. rJ. From the 11th day endjryo. Left side. Taken from 



near the 1st segmental tubule. 2 x E. 



Fig. 3. From the 11th day embryo. Leftside. Near the 2nd 



seirmental tubule. 2xE. 



CT 



Fig. i. From the 12th day embryo, early stage. Left side. 

 Near the anterior ends of the suprarenal and generative organs. 



2xE. 



Fig. Ô. From the 12th day embryo, early stage. 10 sections 

 behind. 2 x E. 



Fig. (J. From the 12th day embryo, early stage. About the 

 level of anterior one third of the left suprarenal. 2xE. 



Fig. 7. From the 12th day embryo, late stage. Left side. 

 l>eyond the anterior end of the suprarenal bodies 2xF, 



Fig. (S'. From the loth day embr^^o, early stage. Right side. 



2xE. 



Fig. L>. From the 1-lth day embryo. Right side. Tlie [)lace 

 marked x in woodcut G. 2xF. 



