356 L. Remsen on Parasulphobenzoie Acid. 
agents is of course no proof that it belongs to the ortho-series. 
This does not, however, detract from the value of Fittig’s 
action that ensued carefully observed. The same quantity of 
ortho-salt, still containing some of the para-salt, was afterward 
pletely destroying either the ortho- or para-acid. This shows 
ekg acid by the oxidation of orthosulphotoluenic acid 
VI. Oxidation of the Amides of Sulphotoluenic Acid. 
The difficulty with which ortho-compounds are obtained ei 
the importance of studying them in a pure condition, in, 0 
| to complete our knowledge of their conduct under various coD- 
