PHYSIOLOGY. 439 



The oxygen passes over materially into the 

 blood or the chyle. Beyond this it is an indifferent 

 matter for physiology, whether the blood simply de- 

 rives the positive tension from the air, or combines 

 the positive oxygen materially with itself. In both cases 

 the same heterogeneity originates. Were oxygen, how- 

 ever, not to enter the body through the lung, it could 

 not then be seen, whence its ingress might be effected. 

 In other respects, every change of matters is established 

 with material combinations and separations. 



2642. The carbonic acid of the respiratory process 

 may originate accidentally, as when it is formed on the 

 integument. In so far is the expiration one and the 

 same with the evaporation. 



2643. The chyle ascends directly from the small 

 intestine into the leaf-fabric, or into the lung. Both 

 organs are to be compared with an entire plant, whereof 

 the intestine is the root, the lymphatic vessels the stem, 

 the lung the leaf-fabric or foliage. 



2644. The chyle moves in the lymphatic vessels like 

 the vegetable sap, and thus by polar tension between 

 lung and intestine. Lung and intestine have been 

 diametrically opposed. The conductors of the antagonism 

 are the lymphatic vessels. 



2645. The lymphatic vessels do not absorb by virtue 

 of their OAvn contractility, nor by open ends; but by 

 physical pores like the cells of plants. 



2646. It is the chyle, which is oxydized in the lung ; 

 the venous blood is a subordinate object. 



2647. Through the oxydation it becomes coloured 

 like the vegetable sap does in a leaf. But the latter 

 sap obtains only the colour of the terrestrial oxydation, 

 of the terrestrial oxyde or the water, and becomes green ; 

 while the chyle gains the colour of the cosmic oxyde, or 

 the fire, and becomes red. The red, fire-coloured sap is 

 the blood. The function of the lungs is consequently a 

 formation of blood. 



2648. The blood is an infusorial, a green mucous 

 sap, which has been elevated to what is aerial. The blood 



