17 



fluorescence of their constituents, showing that the molecule, as a 

 whole, does something with its £*. Such systems of energy con- 

 duction may, perhaps also explain the disproportionality between 

 the quantity of certain drugs or hormones and the mass of the 

 system they act upon. As a system of conducting electric wires can 

 he rendered inoperative by breaking their isolation or conduction 

 at one point, so biological systems of eneigy conduction could be 

 rendered inoperative if disturbed at one point, similarly to Sheibe's 

 dye columns, the conduction of which could be broken by single 

 hydroquinone molecules. 



