2 (Continued) 
located on Mt. Kanobili, 1,600 meters above sea level. Its most important 
instruments are a 7O-cm-meniscus telescope with an objective prism of the 
same diameter, installed in 1956; a Zeiss 40-cm refractor with two 20-cm 
photographic chambers, which is located in the main dome; a 36-cm Schmidt- 
system telescope; a 32-cm reflector with electrophotometer; a chromosphere 
telescope; and an astrograph tower and radio-astronomy and electronics 
laboratories for the observation of the solar system, installed in 1962. 
Workers of the Observatory have completed research projects on the 
absorption of light in interstellar space and stellar movements in the 
Galaxy; they have made electrophotometric observations of variable stars, 
the lunar surface, etc; they have published catalogues of color indexes of 
the light of stars and other celestial objects. The Observatory publishes 
a Byulleten’. 
Name: Acoustics Institute 
(Akusticheskiy institut) 
Address: Moscow, ulitsa Televideniya, 4 
Director: L. M. Brekhovskikh, Corresponding Academician (U.S.S.R.) (1959) 
Deputy Director: -- 
Administrative Affiliation: Academy of Sciences, U.S.S.R. (1961) 
Selected Staff Members: 
V. Ya. Afanasyev 
—3N. N. Andreyev, Academician (U.S.S.R.) 
M. Ye. Arkhangel'skiy 
V. S. Grigor'yev 
M. A. Issakovich, Assistant Head of Theoretical Section 
I. N. Kanevskiy 
L. O. Makarov 
G. D. Malyuzhinets 
L. D. Rozenberg, Professor, Head of Ultrasonics Laboratory 
M. Sirotyuk 
Yu. M. Sukharevskiy 
Description: 
In late 1953, the Acoustics Laboratory of the Physics Institute 
imeni P. N. Lebedev was reorganized as the Acoustics Institute. Studies 
have been conducted on the piezoelectric properties of materials and the 
magnetic structure of and cavitation in liquids. Current or recent projects 
include the investigation of the structure of the ocean bottom, electro- 
physical research on the transmission of sonic vibrations to the brain, and 
a study of sound propagation in a waveguide. 
