THE LYMPH. ,363 



ANALYSIS OF LYMPH FROM CELLULAR TISSUE ((EDEMA). 



Water 975.20 



Albumins 5.42 



Fats and extractives 3.76 



Mineral salts 15.62 



Analysis of Pus. The composition of the leucocytes which 

 enter into the formation of pas has been considered (pages 324 

 and 342). An analysis of pus-serum is here given, which is taken 

 from Robin : 



Water 937.90 



Metalbumin ~| 



Serum-albumin >- 11.00 



Serum-globulin J 



Lecithin 6.00 



Fats and soaps 10.00 



Cholesterin 3.50 



Serolin LOO 



Leucin, tyrosin, and extractives in general 15.00 



Salts of organic acids traces. 



Sodium chloride 3.11 



Sodium phosphate traces. 



Phosphates of calcium and magnesium ; . . . 0.50 



Sulphates 1.87 



Salts of iron and silica 0.16 



THE SYNOVIAL FLUID. 



The synovial fluid, though not a lymph in the narrower sense of 

 the term, is for convenience' sake briefly described at this place. It 

 is the specific secretion of the synovial membrane of the joints, 

 and constitutes a strongly alkaline, viscid, yellowish, somewhat 

 cloudy fluid. In addition to the common albumins, fats, salts, and 

 extractives of the lymph, it contains also a peculiar mucinous body, 

 which is termed synovin, and apparently belongs neither to the 

 nucleo-albumins nor the mucins or mucoids. It can be precipitated 

 with acetic acid and coagulates on the application of heat. Of its 

 nature, however, nothing further is known. In addition, another 

 mucin-like body is found which is rich in phosphorus, and probably 

 belongs to the nucleo-albumins. 



Quantitatively the composition of the synovial fluid varies with 

 exercise and rest in such a manner that on motion the mucinous 

 body, as also the albumins and extractives, increase, while the salts 

 diminish. This is shown in the appended analyses, which are taken 

 from Frerichs : 



Stalled ox. 



Water 969.90 948.54 



Solids 30.10 51.50 



Mucin (?) 2.40 5.60 



Albumins and extractives 15.76 35.12 



Fats 0.62 0.76 



Salts 11.32 9.98 



