C Marignac—Chemical Equivalents and Atomic Weights. 91 
to have them discussed in the presence of the scientific body 
which has the greatest authority, with the object of maintaining 
the established system, or of introducing the other. 
To enter into this discussion, it is doubtless advisable, in the 
first instance, to detine what is understood by these equivalents 
and these atomic weights, which are placed in opposition to 
one another. 
equivalents, I see that M. Berthelot tells us that 
3 } tion.” Unfortunately he 
? is S 
vf any, at least of any that is precise and general. Doubtless 
bromine and iodine, the definition of their relative equivalents 
18 perfectly clear, as the term equivalent is its own definition. 
ut when we deal with bodies which have not a similar 
. . x a = nd 
; University, comprising faculties of letters, medicine, law a 
Govlogy , lycées for Manan instruction and schools of primary instruction.— 
