34 CELL INTELLIGENCE THE CAUSE OF EVOLUTION 



ers. For instance, when we combine hydrogen and oxy- 

 gen together, each oxygen atom is able to grab two hydro- 

 gen atoms to itself. Therefore, when we break up water 

 into its constituent gases by means of an electric current, 

 we find that we get twice the volume of hydrogen that we 

 get of oxygen. The co-partnery agreement of the com- 

 bination, known as 'water,' reads that there shall be two 

 members of the hydrogen family, and one only of the oxy- 

 gen family in the combination. 



"In our common table salt there is a very simple co- 

 partnery, one atom of sodium combining with one atom 

 of chlorine. Then again a single atom of gold will grab 

 three atoms of chlorine to form the chloride of gold used 

 in toning photographs. We see the elementary atoms 

 with their electrical charges combining together and thus 

 forming the neutral molecule, but even these molecules 

 are far below the range of the most powerful microscope. 

 We think of the invisible microbe again and try to realize 

 that it contains millions upon millions of individual parti- 

 cles or molecules, each of which contain several atoms. 

 We therefore picture a piece of solid iron as being entirely 

 composed of invisible atoms of iron. If we handle a piece 

 of solid iron it is very apparent that the invisible particles 

 of which it is composed must have a powerful grip on one 

 another. To this force which binds the molecules to- 

 gether, we have given the descriptive title of cohesion 

 from the Latin word cohaereo, meaning I stick. 



"Our thoughts naturally turn to the electrons, which 

 along with the ether, are the most fundamental things of 

 which we have any knowledge. It is evident that a very 

 heavy burden falls upon those tiny charges of negative 

 electricity. We have seen that they are the stuff that 

 atoms are made of. Electric current and electric dis- 

 charges are simply these tiny electrons in motion. We 



