The Spiralist By Dr Kevin Dann Why do helical seashells resemble spiraling galaxies and the human heart? Kevin Dann leads us into the gyre of James Bell Pettigrew’s Design in Nature (1908), a provocative and forgotten exploration of the world’s archetypal whorl. August 5, 2021 Plate XIX from the first volume of Pettigrew’s Design in Nature (1908), illustrating the resemblance... Continue Reading →