Among the numerous intellectual and artistic developments set in a new light by this brilliantly wide-ranging book are: the long line of philosophical and theoretical writing on rhythm, from Nietzsche to Bergson and their twentieth-century interlocutors; psychological explorations of rhythm as the fundamental law of life, from Herbert Spencer and Ralph Waldo Emerson to Elsie Fogarty; more experimental engagements with psychology's rhythms, from Wilhelm Wundt, Théodule Ribot, and Karl Groos to the aesthetic writings of Vernon Lee; the history of prosody; pioneering applications of rhythm studies to social and sexual reform, by Havelock Ellis, Marie Stopes, D. H. Lawrence, and Mary Austin (among others); Lebensreform movements and the contribution of Rudolf Steiner and Emile Jaques-Dalcroze; and numerous endeavours in artistic and critical innovation, from the small modernist magazines of Bloomsbury and Paris to art salons and dance studios across Britain, Continental Europe, and America.