Edit. Thames and Hudson LTD, 1973 London. 128p. Cuarto mayor (28×20,5x1cm). Rústica ilustrada en muy buen estado. 193 illustrations. «Much more than the art of turning base metals into gold, alchemy is a system of cosmic symbolism which can best be understood as a mean of achieving one-ness with the world. The alchemist learns how to created within a sealed vessel a model of the universe or of human consciousness, in which the opposing complementary forces symbolized by Male and Female, Sulphur and Mercury, Earth and Air, Fire and Water, attain the perfect synthesis of which gold is the emblemed.»