1013.50 Visible and Invisible Tetrahedral Arrays
1013.51 Visibly Demonstrable: Physical
Four white, three-petaled flowers
1 red base
1 green base
1 yellow base
1 blue base
Four black, three-petaled flowers
1 orange base
1 purple base
1 brown base
1 gray base
1013.52 Invisible But Thinkable: Metaphysical