CHLORIDE OF SODIUM. 



435 



foetus, before much phosphate of lime has been deposited, contain 

 far more chloride of sodium than adult bones: and abnormal 

 depositions of bony matter contain more of this salt than even the 

 permanent cartilages. 



Fromherz and Gugert* found 8' 231% of chloride of sodium in 

 the ash of the costal cartilages of a man aged 20 years ; I found 

 11 '236-g- of this salt in the ash of the laryngeal cartilages of an 

 adult female. From various bones I could only extract from 0'7 

 to 1*5$. The femur of a six-months 3 foetus which I examined 

 contained 10*13S of chloride of sodium, and according to Valentinf 

 the encrusting exudation, deposited around a carious tibia, con- 

 tained 13'7-g-. 



Nasse, taking the mean of two analyses, found that the chloride 

 of sodium in the mucus of the air-passages amounted to 0*5 82-(|-, 

 while two comparative analyses showed that it amounted to 0*46f r 

 in the serum of the blood, and to 1'26-jJ- in that of pus. Hence in 

 this respect pus approximates closely to mucus, while the serous 

 portions of blood and pus are differently constituted. 



In order to give a general view regarding the occurrence of 

 chloride of sodium in the animal fluids, I append the following 

 table, which is based, in a great measure, on my own analyses 

 a signifies the amount of salt in 100 parts of the fluid, b in 100 

 parts of solid residue, and c in 100 parts of ash. 



* Schweigg. Journ. Bd. 50, S. 187. 

 t Repertor. 1838, S. 301. 



2 F 2 



