428 BIOLOGY. 



homonymons ; they repel each other, and relaxation or 

 extension ensues. 



2556. The motion of the fibres is consequently a 

 perfectly galvanic process, devoid of material inter- 

 ference, between nerve, fibre, and blood. The nerve is 

 silver, the artery zinc, and the fibre moist card. All 

 theories of motion based upon swelling of blood, ele- 

 mentary change, and such like causes, are not animal, 

 though organic in character ; the former are injections, 

 the latter chemical processes. 



2557. Through the fibrous tissue being shortened and 

 elongated, the entire animal is self-displaced. 



2558. Through the fibrous tissue the animal appears as 

 animal, through the point-tissue it is (and that in essence) 

 an animal. God is in himself, but he first appears in 

 the world. This elucidates or explains the relation of 

 " noumenon" and " phenomenon." 



4. Function of the Cellular Tissue. 



2559. This tissue has no other function than that in 

 the plant. Many saps or juices are effused into the cells. 

 The latter are engaged in constant expansion and con- 

 traction, whereby they decompose and propel these juices. 

 They are the proper seat of the nutritive process, since 

 they coincide with the capillary vessels. 



2560. But as every rigidification is combined with 

 volatilization, so does a process of evaporation occur in 

 them at the same time. 



2561. This process is the property of the teguments 

 or membranes, both of those lining the internal cavities, 

 as also of such as are placed externally. 



2562. But the process of evaporation is principally 

 the function of the true skin or corium. As an organ of 

 evaporation the corium is similar to the lung. It is 

 consequently aeriform water, which of necessity constitutes 

 the principal mass of evaporation. 



2563. The water is, however, mucous in character, the 

 mucus becomes oxydized in the air, and through this 

 also carbonic acid is formed. 



