""The Humid Way"" is a book written by Edward Kelly that explores the concept of the ""vegetable menstruum"" of the planet Saturn. The book is a discourse on alchemy, which was a popular subject during the time period in which it was written. The ""vegetable menstruum"" refers to a substance believed to be present in plants that could be used in alchemical processes to create the philosopher's stone, a substance believed to have the power to transmute...