160 



BLOOD. 



1000 parts of Blood-corpuscles 

 contain : 



Water 



Solid constituents 



Specific gravity.... 1-0885 



Haematin .... 



Globulin and cell-membrane .... 282-22 



Fat 



Extractive matters .... 



Mineral substances (without iron) 8.12 



Chlorine .... 

 Sulphuric acid 

 Phosphoric acid 

 Potassium.... 

 Sodium 

 Oxygen ... 

 Phosphate of lime .... 

 Phosphate of magnesia 



In this representation of the quantitative relations of the con- 

 stituents of the principal elements of the blood, we have preferred 

 following the experiments and deductions laid down by Schmidt* 

 in his admirable essay ; determining from our own analyses only 

 the mean numbers for the individual constituents, and extending 

 our comparative tables to the fat. In describing the analysis of 

 the blood, we shall enter fully into the methods by which those 

 numbers, which we regard as approximative determinations, have 

 been obtained. 



From what has been already stated, it follows that in our 

 consideration of the blood we must, in the first place, regard the 

 morphological elements, and especially the cells, as being altogether 

 distinct from the intercellular fluid. We shall commence, then, 

 with the blood-corpuscles. If we would not rest satisfied with the 

 exploded conjecture that the blood-corpuscles are living beings, 

 whose properties are dependent on a peculiar vital force, but would 

 attempt to form a truly logical and distinct idea of them, we must 

 endeavour to establish an intimate relation and an organic con- 

 nexion between the individual phenomena which we observe in 

 them. In accordance with the main idea that the blood-corpuscles 

 are vesicles filled with a dark-brownish red, tenacious fluid, their 

 individual properties must be grouped together in the most 

 intimate relation to one another, like the edges and angles of a 



* Characteristik der Cholera, u. s. w. 



