Xll 



CONTENTS. 



PAGE 



CHAPTER X. 



THE SPLEEN. 



BY WILHELM MULLEK, 



OF JENA. 



General Structure .... 



,, in Reptiles . 



,, in other Vertebrata 



The Capsule of the Spleen 

 Septa and Sheaths of the Veins 

 Arterial Sheaths ... 

 Bloodvessels ..... 



Lymphatics ..... 



Nerves ...... 



Development ..... 



349 

 349 

 352 

 352 

 352 

 354 

 357 

 359 

 360 

 360 



General Characters 

 Capsule 

 Follicles 



Vessels 



CHAPTER XI. 



THE THYMUS GLAND. 

 BY E. KLEIN. 



365 

 365 

 367 

 368 



CHAPTER XIL 



THE THYEOID GLAND. 

 BY E. VERSON. 



General Characters 

 Vesicles . 

 Framework 

 Vessels . 

 Lymphatics 



370 

 371 

 372 

 372 

 372 



