THE SYSTEMATIC ANATOMY OF A FCETAL SEA-LEOPARD. 473 



Fig. 3. Part of a section of lung, showing the branching tubules embedded in discrete masses of con- 

 densed connective tissue with rudiments of muscular and elastic layers lying next the tubules. The in- 

 terstitial connective tissue is also present in large relative amount. 



Fig. 4. Portion of a longitudinal section of the ovary : 



ep. Surface epithelium (germinal epi- 

 thelium). 

 e. Cortical" zone with primitive ova and 



s. Dense stroma forming a kind of tunica 



albuginea. 

 m. Medulla with a few masses of ova and 



some stroma. much stroma separating them. 



Fig. 5. Part of a section of the pancreas, showing typical arrangement of branching tubular acini, with 

 but little interstitial connective tissue. 



Fig. 6. Portion of a vertical section through the developing cochlea showing one turn of the spiral 

 in section : 



s.v. Scala vestibuli. 

 It. Membrane of Reissner. 

 c.c. Canal of the cochlea. 



B. Basilar membrane, with rudimentary organ 



of corti resting upon it. 

 S.T. Scala tympani. 

 G. Spiral ganglion. 



(ROY. soc. EDIS. TRAXS., VOL. L., 251.) 



