Note 70 — Chapter V

We cannot too strongly recommend the reading of the excellent works which Professor Marey has published, and which have for their object the study of movements, as well as the exhibition of the procedures which he has employed. E. J. Marey, ‘La Machine Animale,’ Paris, 1873; ‘La Méthode graphique dans les Sciences expérimentales,’ Paris, 1884; ‘Le Vol des Oiseaux,’ Paris, 1890; ‘Le Mouvement,’ Paris, 1894.