C.G. Jung, Gerhard Adler, Michael Fordham, Sir Herbert Read
'It is remarkable how the various themes of alchemy appear in these essays with a new and illuminating difference each time. ...In the end I did not find the book obscure at all, as so many of Jung's writings on alchemy have seemed to be after a first reading, because alchemy itself was so full of obscurities.' - Joseph L. Henderson, Journal of Analytical Psychology