It has already been remarked that the confusion and complexity which prevail in this subject render a reform very desirable. But it will be seen, from the reasons assigned under the Ninth Aphorism, that no permanent system of names can be looked for, till a {343} sound system of classification be established. The best mineralogical systems recently published, however, appear to converge to a common point; and certain classes have been formed which have both a natural-historical and a chemical significance. These Classes, according to Naumann, whose arrangement appears the best, are Hydrolytes, Haloids, Silicides, Oxides of Metals, Metals, Sulphurides (Pyrites, Glances, and Blendes), and Anthracides. Now we find;--that the Hydrolytes are all compounds, such as are commonly termed _Salts_;--that the Haloids are, many of them, already called _Spars_, as _Calc Spar_, _Heavy Spar_, _Iron Spar_, _Zinc Spar_;--that the _Silicides_, the most numerous and difficult class, are denoted for the most part, by single words, many of which end in _ite_;--that the other classes, or subclasses, _Oxides_, _Pyrites_, _Glances_, and _Blendes_, have commonly been so termed; as _Red Iron Oxide_, _Iron Pyrites_, _Zinc Blende_;--while pure metals have usually had the adjective _native_ prefixed, as _Native Gold_, _Native Copper_. These obvious features of the current names appear to afford us a basis for a systematic nomenclature. The Salts and Spars might all have the word _salt_ or _spar_ included in their name, as _Natron Salt_, _Glauber Salt_, _Mock Salt_; _Calc Spar_, _Bitter Spar_, (Carbonate of Lime and Magnesia), _Fluor Spar_, _Phosphor Spar_ (Phosphate of Lime), _Heavy Spar_, _Celestine Spar_ (Sulphate of Strontian), _Chromic Lead Spar_ (Chromate of Lead); the _Silicides_ might all have the name constructed so as to be a single word ending in _ite_, as _Chabasite_ (Chabasie), _Natrolite_ (Mesotype), _Sommite_ (Nepheline), _Pistacite_ (Epidote); from this rule might be excepted the _Gems_, as _Topaz_, _Emerald_, _Corundum_, which might retain their old names. The Oxides, Pyrites, Glances, and Blendes, might be so termed; thus we should have _Tungstic Iron Oxide_ (usually called Tungstate of Iron), _Arsenical Iron Pyrites_ (Mispickel), _Tetrahedral Copper Glance_ (Fahlerz), _Quicksilver Blende_ (Cinnabar), and the metals might be termed _native_, as _Native Copper_, _Native Silver_. Such a nomenclature would take in a very large {344} proportion of commonly received appellations, especially if we were to select among the synonyms, as is proposed above in the case of _Glauber Salt_, _Bitter Spar_, _Sommite_, _Pistacite_, _Natrolite_. Hence it might be adopted without serious inconvenience. It would make the name convey information respecting the place of the mineral in the system; and by imposing this condition, would limit the extreme caprice, both as to origin and form, which has hitherto been indulged in imposing mineralogical names.