110 



KANSAIS ACADEMY OF SCIENCE. 



In the gold hecdecade there are only ten elements. The square must be 

 filled up with the atomic weights of six unknown elements, thus: 



Gold Hecdecade. 



777.4 



777.8 



776.4 



777.7 



777.9 



777.7 



777.1 



777.7 



778.8 777.1 



Thus arranged, the gold hecdecade forms a square more perfectly harmonic 

 than any of the lower hecdecades. 



It should be easy, from a study of these hecdecadal tables and graphic 

 charts to predetermine the characteristics and properties of any element 

 before its discovery with a greater degree of accuracy than could have been 

 done by Mendeleeff's octaves. I confidently await such discovery. 



