INDEX 323 



Vincent and Goiffon, 193 I Weber brothers, 127, 131, 156 



Vulscian bas-relief, 2U4 | Wellmann, 106 



Vorticella, movement of, 298 



z 



W ! 



! Zecky, 309 



Walking, abnorma'ities, 77 i Zootropes, 307, 310 



Waves, photographs of, y2-95, 121 i Zoospores, movement of, 299 



THE END. 



