""Concerning The Generation, Growth, Preservation, Life, Death, Resuscitation, And Transmutation Of Natural Things"" is a book written by Paracelsus, also known as Theophrastus, a Swiss physician and alchemist who lived during the Renaissance period. The book is a collection of his theories and observations on the natural world, including the processes of growth, decay, and transformation.Paracelsus believed that all natural things were composed of...