Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         "Lapideum Regnum" nom. inval. - mineral kingdom
           Class "Minerae" - minerals
             Order "Salia" - salts
               1 Genus "Natrum"
               2 Genus "Selenites"
               3 Genus "Nitrum"
               4 Genus "Muria"
               5 Genus "Alumen"
               6 Genus "Vitriolum"