CHAPTER XXIII 

 LOADING UP 



" I send it through the rivers of your blood 



Even to the court, the heart, the seat o' the brain, 

 And through the cranks and offices of man, 

 The strongest nerves and small inferior veins 

 From me receive that natural competency 

 Whereby they live." SHAKESPEARE. 



WE have now come to one of the most interesting parts of our 

 study, namely the handling of the imports in their course between 

 the external and the internal transport systems. As we have 

 seen, the material brought to the body may be divided into two 

 classes. One of these consists of the gas, oxygen, which comes 

 to the port of arrival almost ready for use, and which is passed 

 directly to the inland transport system for transmission to the 

 various cell-communities. 



The foodstuffs form the other class. They are " raw material " 

 and have, as a rule, to undergo some process of manufacture 

 before they can be distributed to the consumer. They are 

 handled by a special mechanical transport service and are taken 

 through the various factories and then handed to the inland 

 transport. 



In this chapter, we are to deal with the importation of oxygen 

 and the mechanism by which it is received at the port, carried 

 overland and loaded on the submersed barges on their way inland. 

 Indissolubly associated with any system of importation is th( 

 provision of exports. Any barge travelling empty on the blc 

 stream as on any external industrial canal is a distinct loss to the 

 whole community. Every ship that leaves our shores without 

 full cargo tells a tale of industrial inefficiency. In the body th< 

 output of carbon-dioxide and the intake of oxygen are niceh 

 balanced. As a matter of fact, the regulation of the rate oi 

 importation by the rate of exportation is as much a law here as 

 in the realm of Political Economy. 



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