2 Wilde, Resolution of Elementary Substances. 



series ; (4) that the ordinal number of the typical nnolecule 

 determines the quantivalence and analogous properties of 

 each series of elements under it, 



I have shown that if the second member of the series 

 Hn (Na = 23)be multiplied successively by an arithmetical 

 series, then will the products, minus the atomic weight of 

 the first member (Li = 7), be the atomic weights of the 

 elements of that series. 



Hn. 

 0.0.7 Li = 7 



1 X 23 . o=Na = 23 



2 X 23 — 7 = Ka = 39 



3 X23 — 7 = Cu = 62 

 4X23-7 = Rb= 85 

 5X23-7=Ag =108 

 6x23 — 7 = Cs =131 

 7x23-7= — =154 

 8x23-7= — =177 

 9x23 — 7 = Hg = 200 



Similarly, the multiplication of the atomic weight of the 

 second member of the series H2n (Mg = 24), the products, 

 minus the atomic weight of the first member (Gl = 8), give 

 the atomic weights of this series of elements. 



H2n. 



o . o . 8 = G1 = 8 

 1x24 — o = Mg= 24 



2 X 24 — 8 = Ca = 40 



3 X 24 — 8 = Zn = 64 

 4X24-8 = Sr = 88 

 5 X24 — 8 = Cd = 112 

 6x 24— 8 = Ba = 136 

 7 X 24—8= — = 160 

 8x24— 8= — =184 

 9X 24—8= Pb =208 



