 
    Russian mineralogist (1883-1942).
Born August 31st, 1883 in Tartu. [ref]
Died April 14th, 1942 at 58 years old in Spas-Demensk (typhus).
        
        It matters not how a man dies, but how he lives. The act of dying is not of importance, it lasts so short a time. Samuel Johnson