In this paper the author shows that Cinchonine by distillation with potash, undergoes a very complex decomposition, and that instead of yielding one base, as has hitherto been supposed, gives at least seven.

The mode of research at first adopted was to convert the basic liquid into platinum salt, and separate the bases by fractional crystallization in the manner described in his paper “On the Presence of Pyridine in the Naphtha produced by destructive distillation of the Bituminous shale of Dorsetshire.”