102 DYNAMIC AGENTS. 



phenomena, acts upon the human nerve, is a third. The three, 

 therefore, may be variously characterized as " odic heat," 

 " odic light," and " odic electricity," or " odic ether ;" and here 

 we have our previously conjectured Secondary Trinity of 

 dynamic agents, corresponding to the Primary Trinity, which 

 consists of Heat, Light, and Electricity, as these terms are 

 ordinarily understood. 



In the same way in which the Primary Trinity of dynamic 

 agents is* concerned in the Primary Trinity of each system of 

 physical developments, the Secondary and corres2^onding Trin- 

 ity (in connection with the Primary, which is still and always 

 in force) is concerned in each secondary and corresponding 

 Trinity of developments, with their peculiarities.* 



Thus the principle which we have called " Odic Heat," may 

 be considered as the internal love-principle by which particles 

 associate in organic forms, and therefore is the fundamental 

 dynamic principle connected with the fourth law the law of 

 Aggregation or Organization, whether relating to the universe 

 as a whole, or to any of its definitely constituted parts. 



The " odic light" appears to be expressive of the ethereally 

 aspirative operations of the organic structure from "which it 

 proceeds. It was before mentioned that this light consisted 

 of the seven different colors of the iris, which seemed to sur- 

 round the center of luminosity as so many concentric spheres 

 of light ; and that when Reichenbach caused a magnetic bar 

 to revolve lengthwise on horizontal and vertical planes, the 

 light exhibited successively all the different colors of the rain- 

 bow, as the magnet was pointed in the different directions in 

 respect to the earth and heavens, which lay in the plane of the 



* It is not claimed that these dynamic principles apply identically to each and 

 every seven-fold system of developments, as to some systems they apply only by their 

 natural representatives, analogues, or correspondents. 



