Witches' Sabbath (The Great He-Goat) whose full-length portrait appears in the same series. As with the other "Black Paintings", Goya began with a black background which he painted over with lighter pigments, then with broad, heavy brushstrokes of grey, blue and brown. The darker areas were achieved by leaving the black under-paint exposed; this is most obvious in the figure of the Devil. Like the other works in the series, "Witches' Sabbath" is worked up through heavy, slashing brushstrokes. The plaster was underlaid with thick carbon black before the paint was applied in hues of white lead, Prussian blue, vermilion of mercury, and crystals of
Witches' Sabbath undoubtedly hallucinogenic, were not among the ingredients listed in recipes for the flying ointment. The active ingredients in such unguents were primarily, not fungi, but plants in the nightshade family Solanaceae, most commonly Atropa belladonna (Deadly Nightshade) and Hyoscyamus niger (Henbane), belonging to the tropane alkaloid-rich tribe Hyoscyameae. Other tropane-containing, nightshade ingredients included the famous Mandrake Mandragora officinarum, Scopolia carniolica and Datura stramonium, the Thornapple. The alkaloids Atropine, Hyoscyamine and Scopolamine present in these Solanaceous plants are not only potent (and highly toxic) hallucinogens, but are also fat-soluble and capable of being absorbed through unbroken human skin. Witches' Sabbath The