128 PICTURING MIRACLES 



face. It passes through these tiny openings as vapor. 

 Analyze the energy to do this first work and what 

 it takes in bare power and you would soon find all 

 the motors, locomotives and man-developed pro- 

 ducers of energy in the world would not equal that 

 required for this branch of the work going on. What 

 a field of conjecture, if that energy could be har- 

 nessed to do man's work and it may be some day, 

 who could tell what would happen! The most im- 

 portant duty of all is yet to come. In this wonderful 

 leaf factory are all sorts of things going on. Like our 

 factories, it has producing chambers where its prod- 

 uct is being manufactured, storerooms where the 

 surplus is stored away for future use, channels bring- 

 ing in an endless stream of material, others carrying 

 the surplus away. Volumes have been written and 

 an enormous amount of research work done but still 

 it is a mystery just how the sun shining through the 

 small green bodies called chlorophyll grains in the 

 leaf cell gives them the power to break up the carbon 

 dioxide coming into the leaf in the air and combine 

 it with the sap and change it to grape sugar or starch, 

 one or the other or back and forth. That is what is 

 going on, endless streams of material passing per- 

 haps at the focal point of the green chlorophyll 

 bodies which like huge burning glasses make this 

 chemical change. In our laboratories it would take 



