Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Astra Plinius - celestial bodies
         [Planetae - planets]
           1 [(Planet) Saturnus veter.] see Planet Saturn veter.
           4 [(Planet) Tellus veter. - Earth] see Planet Earth veter.
           6 [(Planet) Mercurius veter.] see Planet Mercury veter.
           7 [(Moon) Luna] see Moon Moon veter.