[Natura] - nature
Ref: J.D. Dana, 1863: 1 [inferred name]
   crystal-kingdom
  Ref: J.D. Dana, 1863: 1 [implicit position]
     minerals constituting rocks
    Ref: J.D. Dana, 1863: 55 [implicit position]
       Protoxyd-Silicates, not containing water
      Ref: J.D. Dana, 1863: 59
         hornblende
        Ref: J.D. Dana, 1863: 59-60
           asbestus
          Ref: J.D. Dana, 1863: 60