PAGE 



IV. RELATION BETWEEN COLOR OF BODY FAT AND FOOD OF 



Cow 397 



V. RELATION BETWEEN COLOR OF BODY FAT AND BREED OF 



Cow 399 



VI. THE PIGMENTS OF THE CORPUS LUTEUM 402 



VII. THE PIGMENTS OF WAXY SECRETIONS OF JERSEY Cows . . 405 



VIII. BODY FAT AND BLOOD SERUM PIGMENTS OF NEW-BORN 



CALF 406 



IX. DISCUSSION OF RESULTS 408 



X. SUMMARY 410 



XL BIBLIOGRAPHY 411 



PART IV. 

 A. THE YELLOW PIGMENT OF BLOOD SERUM 



I. INTRODUCTION 415 



II. METHODS OF IDENTIFICATION 416 



III. METHODS OF ISOLATION 417 



IV. CHEMICAL IDENTIFICATION OF PIGMENT 418 



V. DISCUSSION OF EXPERIMENTS 421 



VI. PHYSIOLOGICAL RELATION BETWEEN CAROTIN OF BLOOD 



SERUM AND FOOD OF Cow 422 



VII. TRANSPORTATION OF CAROTIN AND XANTHOPHYLLS BY 



BLOOD 427 



VIII. THE HIGH COLOR OF COLOSTRUM MILK FAT 435 



5 



