Georg Wulff
Georg Wulff, Georgy Wulff or Yuri Viktorovich Vulf (Russian: Георгий (Юрий) Викторович Вульф; 22 June [O.S. 10 June] 1863 – 25 December 1925) was a pioneer Russian crystallographer. == Biography == Wulff was born in Nizhyn, Chernigov Governorate, in the Russian Empire (now in Ukraine), where his mother Lydia was daughter of teacher E. V. Gudim.