CONTENTS. xv 



PAGE 



THE PIGMENTS OF THE URINE 291 



Urochrome 291 



Isolation 292 



Uroerythrin 292 



Isolation 293 



Urobilin . . . 293 



Tests * . . . 293 



The blood-pigments 294 



Hsematin 295 



Hsematoporphyrin 295 



Urorubrohsematin and urofuscohaematin 296 



Melanins 296 



The bile-pigments . . 297 



The bile-acids 297 



Fats, cholesterin, and lecithins 298 



Ferments 298 



Oases 299 



Ptomains . . 299 



CHAPTER XIII. 

 THE ANIMAL CELL. 



Protoplasm and nucleus 301 



Chemical changes 302 



CHAPTER XIV. 

 THE BLOOD. 



General considerations 306 



PHYSICAL CHARACTERISTICS OF THE BLOOD 307 



Color 307 



Odor 308 



Taste 308 



Specific gravity 308 



Amount 309 



CHEMICAL EXAMINATION OF THE BLOOD 309 



Reaction . ~ 309 



Chemical composition of the blood as a whole 310 



The plasma 312 



Fibrinogen 313 



Isolation : 313 



Properties * 314 



Serum-globulin 314 



Isolation 314 



Properties 315 



Serum-albumin 316 



Separation of the albumins from each other 316- 



Quantitative estimation of the albumins 316 



