INDEX. 



Ulrici, 107. 

 Ulysses, 84. 

 Unlimited, 85. 

 Unnamed number, 6. 



Van Ceulen, Ludolf, 134. 

 Van Eyck, Simon, 132. 

 Van't Hoff, 88. 

 Vicenary system, 5, 

 Vieta, 133. 

 Vision, 93 et seq. 

 Vitfuvius, 128 

 Von Liittich, Frankos, 131. 



Wallis, 136, 138. 

 Waltershausen, 99. 

 Weierstrass, 31. 

 Wenzelides, 58. 

 Wislicenus, 88. 

 Wolfenbuttel Library, 128. 

 Wolff, Professor, 140. 

 Words, numeral, 4 et seq. 

 Worms, two-dimensional, 104. 

 Wundt, 107. 



Zero, 13, 16. 



Zero exponents. 21. 



Zollner, 65, 92, 93 et seo 



