13 



circulation of life, bringing together, as it does, the highest product of all 

 Natvu"e's Kingdoms. 



We have shown how the blood receives positive electro-chemic energy in 

 the lungs — how this energy acts upon the various food elements in the blood 

 in such a manner as to release their contained or stored energy, which is 

 negative to that of the atmospheric energy. We have noted the insulated 

 blood vessels, and have seen how this insulation is removed within the capil- 

 laries so that energy may be taken up by the nervous system to be used in 

 the economy of the organism. 



We have seen how this return flow of energy through venous blood collects 

 the waste or retrograde products at its negative pole, for exit through excre- 

 tion. These waste products, positive in their nature, are now descending in 

 the scale toward lower forms of life, where Nature, in her wonderful conser- 

 vation of energy, utilizes them. 



Attention has been called to the fact that carbon and hydrogen decomposed 

 by electrolysis in the blood stream collects at the lungs for excretion, and 

 when excreted these elements leave in the venous blood free oxygen for mole- 

 cular rearrangement in arterial blood. 



It has been shown how liberated hydrogen, in the presence of oxygen, 

 unites with that element to form the watery vapors of expired air, and how 

 carbon unites with oxygen, forming carbon-dioxide, producing the positive 

 energy which purifies and renews the life of the blood. These elements have 

 now performed their ofl&ce in the hiunan system, and are expelled from the 

 lungs as dead, or devitalized air. 



The effete gases thrown off from the lungs are fifty times heavier than 

 atmosphere, consequently they are naturally attracted toward the earth's 

 carboniferous plant life. Botanists tell us that under the influence of sun- 

 light, plants absorb carbon from the air, and excrete oxygen; hence it is 

 readily seen that the vegetable kingdom has a great influence on the purifica- 

 tion of the atmosphere. 



Nature's methods are perfect. In her economy she uses the retrograding 

 elements to generate or liberate energy which is ascending. The disintegrat- 

 ing elements from one kingdom become the food supply for another, and all 

 kingdoms are united by that subtle force, electro-chemic energy. Nothing is 

 lost. Matter is reduced to energy, and energy is condensed into matter — 

 neither can be absolutely destroyed. The changes which we witness are 

 those of reduction, change of form. By a close study of,the'laws of resistance 

 to passing energy we shall ultimately learn the secret of how ceHs are formed 

 from condensing energy. 



Solar energy mingling with gaseous elements imparts some of lis electric 

 life to them, causing motion and circulation. 



Too much stress can not be placed upon the fact that it is the life-giving 



