The Genesis of the Chemical Elements. 
415 
Symbol. 
Natural Formula, 
M v TVi m 1 o 
JJ UlUlUldj 
in Figures 
(H = 1). 
JQj X pt3 1 llllcll ucul 
Atomic Weight 
(0 = 16-018). 
Ba 
137H 
+ 
2ya + 5w 
137-518 
137-524 
La 
139H 
+ 
3^ + w 
139-127 
139-16 
Ce 
140H 
+ 
4u + 3(iL» 
140-336 
140-408 
Pr to ) 
Yb j 
All 7^H + 3^ 
Ta 
181H 
+ 
5^ + (i) 
181-145 
181-205 
W 
184H 
+ 
184-154 
184-208 
Os 
191H 
+ 
SfJL 
191-072 
19110 
Ir 
193H 
Sfj, + Soj 
193-372 
193-32 
Pt 
195H 
+ 
ijJL + 2w 
195-236 
195-221 
Au 
197H 
+ 
3^ + 4w 
197-427 
197-423 
Hg 
200H 
+ 
2// + 2w 
200-218 
200-226 
Tl 
204H 
+ 
fi + 2w 
204-209 
204-23 
Pb 
207H 
+ 
2^ + S(i) 
207-318 
207-33 
Bi 
208H 
+ 
Sfj, + S(i) 
208-327 
208-235 
Ea 
226H 
+ 
2ix 
?226-018 
226-6 
Th 
233H 
+ 
4^ 
?233-036 
232-68 
U 
239H 
+ 
6/1 
?239-054 
238-77 
It will be seen that the new scheme brings out closer relationships 
between such groups as the alkali-metals and the halogens ; and that, 
although it follows the Periodic Law, it would require the latter to be 
modified in important particulars, e.g., from platinum to bismuth. 
The author thinks it not impossible that in certain reactions, where 
the valency increases, one or more protons ^ go amissing despite the 
"conservation of mass/' Thus the components of NH^Cl contain 8ju, 
whereas NH^Cl probably only contains 6ju. 
Chemical Laboratory, Mines Department, Johannesburg. 
July 10, 1909. 
