CONTENTS. ix 



CHAPTER XXL 



THE KIDNEYS. 

 BY C. LUDWIG. 



PAGE 



General Structure of the Kidney 83 



Tubuli Uriniferi 85 



Course and Diameter . . . . . .85 



Union into Primitive Cones . . . . .88 



Union of Cones into Pyramids 89 



Structure of Walls of 90 



Varieties amongst different classes of the Vertebrata . 96 



Bloodvessels of the Kidney . 97 



Of the Cortex 97 



Of the Medullary Portion 102 



Of the Fibrous Capsule . . . . . 104 



Lymphatics of the Kidney ....... 105 



Connective Tissue of the Kidney . . . . . .105 



Nerves of the Kidney 106 



History of the Anatomy of the Kidney .... . 106 



CHAPTER XXII. 



THE ADRENALS OR SUPRA-RENAL CAPSULES. 

 BY C. J. EBEETH. 



General position of the Adrenals in Vertebrata .... 110 



Parenchyma of the Adrenals . . . . . . .110 



Adrenals of Fishes . . . . . . . .110 



Batrachia . Ill 



,, Reptilia 112 



Aves . .112 



,, Mammals 112 



Cortical Substance 118 



Medullary Substance . . . . . . . .116 



Connective -tissue Stroma . . . . . . . 118 



Bloodvessels . . . . . . . . . .120 



Lymphatics 121 



Nerves . . . 121 



Bibliography 123 



