324 Heinrich Rose. 
hyponiobie, and never the niobic acid. So that here again isa 
means by which, through the metal, the niobic may be changed 
they may also be made to combine with nitrogen. But when 
“this it is,” says Rose, “ which has induced me to devote so 
much time and labor to their investigation.” 
o 
Throughout his life Rose was a firm supporter of the atomie 
Various proportions, confirmed him in the correctness of his 
view. In 1857, he reviewed these facts in a carefully written 
paper upon the Atomic Weight of the Elementary Bodies. He 
__ and copper require the atomic weight of the former to be hal ved, 
the isomorphous relations of the oxyds of silver and sodium 
ie same change necessary in regard to the latter. AS 
