Witches' Sabbath (The Great He-Goat) powdered glass, orpiment and iron oxides. He likely worked with mixed materials. Technical analysis indicates that most of the Black Paintings begun with preparatory drawings. "Witches' Sabbath" is the exception; the final composition seems to have been painted directly onto the wall. Art historian Fred Licht notes that Goya's brushwork appears "clumsy, ponderous, and rough" and lacking finish compared to his earlier work. Licht believes this was a deliberate ploy to physically convey dismay at human inadequacy and his own feelings of personal doubt. Unique in the series, "Witches' Sabbath" was not significantly altered by Goya after his initial work.
Witches' Sabbath A number of recipes for such 'flying ointments have survived from early modern times, permitting not only an assessment of their likely pharmacological effects – based on their various plant (and to a lesser extent animal) ingredients – but also the actual recreation of and experimentation with such fat or oil-based preparations. It is surprising (given the relative wealth of material available) that Ginzburg makes only the most fleeting of references to the use of entheogens in European witchcraft at the very end of his extraordinarily wide-ranging and detailed analysis of the Witches Sabbath, mentioning only the fungi Claviceps purpurea