83 DELONE 



U.S.S.R. Academy of Sciences. He became editor, in 1946, of 

 the Journal of General Chemistry (Zhur. Obshchei Khim.). 



Danilov discovered that aldehydes of the chain and cyclical 

 construction with secondary and tertiary radicals can be iso- 

 merized into ketones. He established that oxy -aldehydes under 

 the influence of catalysts are isomerized into oxy -ketones and 

 into monocarboxylic acids. These investigations elucidated 

 some biochemical processes such as the transformation of 

 sugars. Danilov worked out new methods of obtaining ethyl 

 cellulose. He conducted investigations in the area of analysis, 

 stabilization, and transformation of viscose. 

 Bibliography: 



Dehydration of secondary - tertiary alpha glycols, deriva- 

 tives of hydro -benzoin. Journal of Russian Physico- 

 Technical Society, Chem. sec, 1917, 49, #3-4. 

 Dehydration of cyclohexylhydrobenzoin in connection with 

 isomerization of aldehydes into ketones. Journal of Russian 

 Physico-Technical Society, Chem. Sect., 1926, 58, #1-2. 

 and A. M. Gakhokidze. Isomerization of oxyaldehydes. VI~ 

 Saccharinic rearrangement of mannose. Zhur. Obschei 

 Khim., 1936, 6, #5. 

 Biography: 



V. V. Razumovskii. Corresponding member of the U.S.S.R. 

 Academy of Sciences S. N. Danilov (On the 60th Anniversary 

 Since the Date of Birth). Priroda, 1949, #4. 

 Office: Institute of High Molecular Compounds 



Birzhevoy Prospekt, 6 

 Leningrad, USSR 



DELONE, BORIS NIKOLAEVICH (Mathematician) 



B. N. Delone was born in Leningrad March 15, 1890. He 

 graduated from Kiev University in 1913 where he was a pupil 

 of V. P. Ermakov (1845-1922, mathematician), and D. A. Grave 

 (1863-1939, mathematician). In 1934, he was awarded the de- 

 gree of Doctor of Physical-Mathematical Sciences. He became 

 a professor in 1926. He was employed at Kiev University from 

 1913 to 1916, and at Kiev Polytechnic Institute from 1916 to 

 1922. He has been a professor at Moscow University since 

 1935, and since 1932, has been employed at the U.S.S.R. Acade- 

 my of Sciences Institute of Mathematics. In 1929 he became a 

 Corresponding Member of the U.S.S.R. Academy of Sciences. 



On number theory Delone obtained a solution in whole 

 numbers of indefinite equations of the third power, with two 

 unknowns. His geometric works are concerned with a theory of 



