24 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 65 



THE PERIODIC CLASSIFICATION OF THE ELEMENTS, 



WITH THEIR ATOMIC CONSTITUTIONS 



IN TERMS OF MAGNETONS 



/\ / 



Y / 



/ V 



.< V \ 



\ / 



FeCoNiRuRhPd — j— OsIrPt 



37+8 57+8 97+8 



V 

 A 



/ \ 



Ga _ In _ -+- Tl 

 (37+n) (57+n) (97+n) 



47+3 67+3 107+3 



...., Proto-elements (see §8). 



, Unknown elements the possibility of whose existence is not contested 



theoretically. 



— I — , Rare-earth elements, possibly with the constitutions 77+5, . .., 77+20 

 (4^87+12^97+4). See §13. 



