alchemy: air (aër)

alchemy alphabet air aer primary element gas fluid medieval sign mystic hieroglyphic symbol aristotelian tetraktys alchymia spagyric chemistry occult magic hermetic sorcery witchcraft wizardry philosophers stone laboratory elixir of life great deed grimoire transmutation chrysopoeia tetrasomata synthesis quintessence magisterium prima materia lapis philosophorum zauberbuch book substance elements minerals matters stuffs balsam principal fundamental essential recipe search chemicals