EFFECTS OF ACUTE AND CHRONIC INANITION UPON 



THE RELATIVE WEIGHTS OF THE VARIOUS 



ORGANS AND SYSTEMS OF ADULT 



ALBINO RATS 



CM. JACKSON 



The Institute of Anatomy, University of Minnesota. Minneapolis 



TWO FIGURES 



CONTENTS 



Material and methods 76 



Length of body and tail 80 



Head 82 



Extremities and trunk 84 



Integument 85 



Skeleton 87 



Musculature 90 



Viscera and 'remainder' ■ 91 



Brain 91 



Spinal cord 94 



Eyeballs 95 



Thyroid gland 96 



Thjanus 97 



Heart 98 



Lungs 99 



Liver 99 



Spleen 101 



Stomach and intestines 102 



Suprarenal glands 103 



Kidneys 103 



Gonads 104 



Hypophysis 105 



Discussion 106 



Summary 107 



Literature cited 109 



As emphasized by the author m a previous paper (Jackson '13), 

 there is great need of a series of comprehensive growth norms, 

 which would serve as a basis for experimental work and give a 

 better insight into the growth process in animals. Through the 



75 



THE AMERICAN JOUHNAL OF ANATOMY, VOL. 18, NO. 1 



