History of the inductive sciences, from the earliest to the present time
CHAPTER IX.--ATTEMPTS AT THE REFORM OF MINERALOGICAL
SYSTEMS.--SEPARATION OF THE CHEMICAL AND NATURAL HISTORY METHODS.
_Sect._ 1. Natural History System of Mohs. 344 _Sect._ 2. Chemical System of Berzelius and others. 347 _Sect._ 3. Failure of the Attempts at Systematic Reform. 349 _Sect._ 4. Return to Mixed Systems with Improvements. 351
_CLASSIFICATORY SCIENCES._