INDEX 



197 



Tyndall, J., 117 



Uccello, P., 69 



Unity, 81 ; of thought and technique, 

 79 



Vasari, G., 81 



Venus, observations of by Baby- 

 lonians, 136 



Verrocchio, A. del, 39, 66, 69-70 



Vesalius, A., 9 



Vico, G. B., 34 



Vie de Jesus, 110 



Vigesimal fractions, 12 



Vigny, A. de, 98-99 



Vinci, Leonardo da, 41, 58, 65 ff., 

 121, 160 



Viollet-le-Duc, E. E., 42 



Voltaire, 34 



Vries, H. de, 42 



Wagner, R., 18 



Wallace, A. R., 118 



Warfare between Science and 7be- 



ology, 38 

 Watts, G. F., 39 

 Weights and measures, systems of, 



37 

 Weimar circle, 22 

 White, A., 38 

 Writing, art of, 135, 144 



Xenophon, 101 



Yaqut, 153 

 Young, T. ; 46 



Zero, use of, 5 

 Zoology, 74 

 Zuhr, ibn, 153 



