234 



THE LIQUIDS IN DROPSIES. 



[BOOK i. 



Saline 

 constituents. 



Extractive 

 matters. 



present in addition. Old dropsical accumulations within the serous 

 sacs are richer in proteids than those recently formed. 



The salts of dropsical transudations are similar in 

 character and usually in amount also to those present in 

 the liquor sanguinis. They are most abundant in recent accumu- 

 lations. 



The extractive matters of the blood, such as urea, 

 uric acid, sugar, occur in the transudations, in much the 

 same proportions as in the liquor sanguinis. In old extravasations 

 cholesterin is occasionally present, and more rarely bilirubin. 



Gases. All dropsical extravasations contain gases, C0 2 , 0, 



and N, removable by boiling in a Toricellian vacuum. 



Of these gases the first is most abundant, the second sometimes 

 absent, and the third is present in about the same proportion as in 

 the blood. The tension of the C0 2 is, in some cases, considerably 

 higher than in the blood (Ewald). 



TABLE EXHIBITING THE VOLUMES OF GASES, MEASUEED AT 0<> C. AND 

 760 MM. FOUND IN VARIOUS PATHOLOGICAL TRANSUDATIONS BY 

 PLANER, STRASSBURG AND EWALD (HOPPE-SEYLER 1 .) 



Iloppe-Seyler, Pliysiuloyisclie Chemie, p. 611. 



