Changes made
Illustrations have been moved outside text paragraphs; footnotes have been moved to the end of the respective chapters.
Some obvious minor typographical errors have been corrected silently.
Page 68: “see Figs. 29 and 50” changed to “see Figs. 29 and 30”
Page 146: “(see Fig. VI)” changed to “(see Fig. 6)”
Page 174: “mesencaphalon” changed to “mesencephalon”
Page 280: “tâche cérèbrale” changed to “tâche cérébrale”; “Treatment.” changed to “Treatment.”
Page 321, Fig. 21 (caption): closing bracket added after “the anterior belly of the occipito-frontalis muscle”