TUDOROVSKII 402 



Bibliography: 



and M. I. Sumgln. Fundamentals in the Mechanics of Frozen 

 Grounds. Moscow -Leningrad: 1937. 



Estimation of Foundation Depressions. Moscow -Leningrad: 

 1941. 



Ground Mechanics. 3rd ed. Moscow -Leningrad: 1951. 

 and M. L Sumgin. Principles of Mechanics of Frozen 

 Ground. U. S. Snow, Ice, and Permafrost Research Es- 

 tablishment. Trans. 19 Apr. 1959, 288 p. Engineering In- 

 dex, 1960, 1359. 



Office: V. A. Obrachev Institute of Permafrost 



Bol'shoy Cherkasskii Pereulok, 2/10 

 Moscow, USSR 



TUDOROVSKII, ALEKSANDR ILARIONQVICH (Physicist) 



I. I. Tudorovskii was born August 24, 1875. He graduated in 

 1897 from Peter sberg University. In 1902-1919 he taught at 

 the Peter sberg Polytechnic Institute, in 1919-1929 at the 

 Peter sberg University (Leningrad). Tudorovskii was named, 

 in 1916, the head of the first Russian Calculating Bureau on the 

 calculation of optical systems. In 1918 he began work at the 

 State Optical Institute. He has been a Corresponding Member 

 of the U.S.S.R. Academy of Sciences since 1933. He was award- 

 ed the Stalin Prizes in 1942 and in 1946, and in 1956 he was an 

 Honored Scientist of the R.S.F.S.R. 



The works of Tudorovskii deal with problems of geometrical 

 optics and optical techniques and also with electromagnetic 

 phenomena. Tudorovskii organized optics calculations in 

 U.S.S.R. He used vector methods in calculating mirror and 

 prism systems and aberrations of the third order. He com- 

 pleted, together with associates, large-scale works on the 

 calculation and development of new types of photographic 

 lenses. 

 Bibliography: 



Electricity and Magnetism. Part 1-2. Leningrad, Moscow: 



1933-35. 



Theory of Optical Devices. 1-2 , 2nd ed. Moscow -Leningrad: 



1948-52. 



Dependence of aberrations of the third order of the optical 



system on the position of planes of the inlet pupil and the 



object. Zhur. Tekh. Fiz., 1942, 12, #8, 496. 



Calculation of the aberrations of the third order by the 



formulas of Lange. Zhur. Tekh. Fiz., 1943, 13, #4-5, 



230-258. 



