Eric Walker added Cinnabar - Wikipedia to Cinnabar

Eric Walker added Collections: Clothing, How Did They Make It? Part IVa: Dyed in the Wool – A Collection of Unmitigated Pedantry to a number of topics

Eric Walker added Cinnabar - Wikipedia and Collections: Clothing, How Did They Make It? Part IVa: Dyed in the Wool – A Collection of Unmitigated Pedantry to Cinnabar, and added Cinnabar to Mercury (chemical element) and Sulfur

Eric Walker added a number of topics and Sulfur Hexafluoride: The Nightmare Greenhouse Gas That’s Just Too Useful To Stop Using | Hackaday to Sulfur, and added Sulfur to Chemical elements

Eric Walker added Organomercury and Cinnabar and Culprit for Mass Extinction 445 Million Years Ago? Global Warming - The New York Times and Large amounts of mercury discovered in Greenland′s glaciers | Science| In-depth reporting on science and technology | DW | 18.06.2021 to Mercury (chemical element), and added Mercury (chemical element) to Chemical elements