Meconium color palette
The pallet of colors are the outcome of the entire journey and research of the meconium of butterflies in Queensland, Australia. Because there is a restriction on returning organic materials from Australia, Cools did not have the opportunity to take the meconium liquids home. That is why he has recorded it in a color palette. These color cards are mostly known for paint related colors but were used during the discovery trips by ornithologists.
Color palettes were created with aquarel to indicate the color of a bird seen in the wild. The ornithologists had no time to paint the complete bird because before they would finish a painting, the bird would have already flown away. After the field trip the complete bird could be painted at home by using the color palettes. These color cards were later also used for regular paint colors, as we now know them. Cools' way of using these cards keeps the tradition of the first ornithologists during their fieldwork alive.