LYMPH. 



465 



Lymph is very variable in its chemical composition. It may be 

 generally stated as follows : 



Water, . . . . . 93 to 98 per cent. (Charles). 



Solids, . . . ... 6 " 2 



Alhumen, . . " . . .3.2 " 0.3 " 



Veuves, : : : :. 55 }** 



Ash, . . ; . ... .. . 0.7 to 0.8 



Sodium chloride forms about 0.6 per cent. The proteids consist of 

 tibrinogen, serum-globulin, and serum-albumen. Lymph yields only 0.4 

 to 0.8 per one thousand of fibrin, being much less, therefore, than the 

 amount obtainable from blood. 



In the ash of lymph sodium chloride is very abundant and phos- 

 phates scant}' : the lymph-cells, however, contain an excess of potassium 

 and phosphoric acid, as compared with the serum, the latter having an 

 excess of sodium. Urea is always present (0.019 per cent, in the cow), 

 and grape-sugar (0.16 per cent, in the dog), though it has been stated 

 that cli3'le does not take up sugar when animals have been fed on a 

 starchy or saccharine diet. 



The lymph contains C0 2 , N, and traces of when pure and un- 

 mixed with blood. The amount of C0 3 is greater than in arterial but 

 less than in venous blood. While the quantity of N is about the same as 

 in the blood, the amount of O is always less than in the blood, thus 

 showing that the tissues rapidly appropriate the O of the blood. 



The following table gives a comparison of the composition of the 

 lymph and blood : 



LYMPH (Wurz). 



BLOOD (Nasse). 



HESULTS OF THE QUANTITATIVE ANALYSIS OF LYMPH AND CHYLE. 

 I. ANALYSES OP THE LYMPH OF MAN. 



