QUANTITY AND COMPOSITION OF BLOOD 



973 



where p is the number of c.c. of serum in 100 c.c. of blood ; X (6), X (s), the 

 conductivity respectively of the blood and serum (both measured at or reduced 

 to 5 C. and expressed in reciprocal Ohms x 10 8 ). A reciprocal Ohm is the 

 conductivity of a mercury column 1 -063 metres long and 1 square millimetre in 

 section. 



THE GENERAL COMPOSITION OF THE BLOOD 



The general composition of the blood has been determined by 

 Karl Schmidt in man, and by Abderhalden in the horse and bullock. 

 The results are given in the following Tables : 



BLOOD OF A MAN TWENTY-FIVE YEARS OF AGE 



One Thousand Grammes of Blood contain 

 513-02 Blood-Corpuscles. 



Water .... 349-69 

 Substances not vaporising at 



120 C 



163-33 



(including 0-512 iron) 

 (excluding iron) 



Chloride of potassium . 

 Sulphate of potassium 

 Phosphate of potassium 

 Phosphate of sodium . 

 Soda. 



Phosphate of lime 

 Phosphate of magnesium 



Total 



486-98 Interstitial Fluid (Plasma). 



Water .... 439-02 

 Substances not vaporising at 

 120 



Fibrin 



' Albumen,' &c. 



Inorganic constituents. 



Chlorine 

 Sulphuric acid 

 Phosphoric acid . 

 Potassium . 

 Sodium 



Phosphate of lime 

 Phosphate of magnesium 

 Oxygen 



47-96 



3-93 



39-89 



4-14 



1-722^ { Sulphate of potassium 



0-063 

 0-071 

 0-153 

 1-661 

 0-145 

 0-106 

 0-221 



Chloride of potassium . 



Chloride of sodium 



Phosphate of sodium . 



Soda. 



Phosphate of lime 



Phosphate of magnesium 



Total 



1-887 

 0-068 

 1-202 

 0-325 

 0-175 

 0-048 

 0-031 



3-736 



0-137 

 0-175 

 2-701 

 0-132 

 0-746 

 0-145 

 0-106 



4-142 



Specific Gravity = 1-0599. 



