92 THE SECRETIONS: 



Pus from a Pus from a psoas Pus from a mam- 

 vomica. abscess. mary abscess. 



Water . . . 894-4 885-2 879-4 



Fatty matter . 17-5 j ^ ^ 



Cholesterm . . 5-4 



Mucus . . .11-2 6-1 



Albumen . . . 68-5 637 83-6 



Lactates, carbonates, sulphates, and i 



phosphates of soda, potash, and > 9' 7 13-5 8-9 



lime . . J 



Iron . . .a trace 



Loss . . .3-3 2-7 1-6 



Nasse 1 has published two analyses, one of serum of pus, and 

 the other of serum of blood, with the view of comparison. The 

 following are his results : 



Serum of pus. Serum of blood. 



Water . . . 890-00 906-5 



Solid residue . . . 110-00 93-5 



Organic constituents 92-58 85*7 



Chloride of sodium 12-60 4-6 



Carbonate of soda 2-22 1-4 



Phosphate of soda 0-32 0-9 



Sulphate of soda 0-18 0-2 



Phosphate of lime 

 Carbonate of lime 



1-201 

 0-90 J 



0-7] 



I made an analysis of pus which was discharged with the 

 urine by a servant-girl with phthisis vesicse : it was rather tough, 

 of a reddish colour, in consequence of a little blood that was 

 mixed with it, and quickly sunk to the bottom of the vessel, 

 after the urine had been stirred. Before examination, it was 

 washed with water and evaporated to dryness on the water- 

 bath. There were contained in 100 parts : 



Analysis 90. 



Fat containing cholesterin. . . . 5-20 



Albumen, with phosphate of lime . . . 40-20 



Pyin, casein or globulin, and some extractive matter . 17-00 



Haematin, urea, alcohol-extract, and lactate of soda . 10-60 



Spirit-extract, with chloride of sodium, lactates, and phosphates 1-30 



Water- extract, with phosphates and sulphates . . 13-80 



Pus secreted by the synovial membrane of the knee-joint is 

 composed, according to Wood, 2 of water, 888-1; cholesterin, 4-0; 

 oleate of soda with soda, and potash-salts, 22'4 ; animal matter 

 and chloride of sodium, 30-2 ; a substance resembling glutin, 



1 Simon's Beitrage, p. 338. 2 Op. cit. p. 21. 



