1. Some ways of increasing the efficiency of spectral instruments in recording the spectra of element traces

   • L. S. Zakharov
   • T. K. Aidarov
   • T. A. Koreeva

   OriginalPaper Pages: 761 - 764

2. Spectral analysis with an interferometer

   • Nguyen Van Bhu
   • A. G. Zhiglinskii
   • Yu. I. Turkin

   OriginalPaper Pages: 765 - 769

3. Some spectroanalytic capabilities of a continuous-burning ac arc

   • V. S. Sukhnevich

   OriginalPaper Pages: 770 - 772

4. Spectral investigation of micro amounts of impurities in pyromellitic dianhydride

   • N. P. Anashkina
   • M. T. Golikova
   • I. I. Tokarskaya

   OriginalPaper Pages: 773 - 775

5. Emission from the channel and cloud of a spark discharge

   • E. V. Kondrat'eva

   OriginalPaper Pages: 776 - 778

6. A study of a high-current pulse discharge in argon

   • I. K. Babaev
   • A. N. Sviridov
   • S. N. Tsys'

   OriginalPaper Pages: 779 - 783

7. Calculation of dye oscillation power on monochromatic excitation

   • B. I. Stepanov

   OriginalPaper Pages: 784 - 790

8. Computation of frequencies and intensities in multimode lasing

   • A. P. Khapalyuk

   OriginalPaper Pages: 791 - 794

9. Spectra for the fundamental terms of the Nd³⁺ ion in LiNbO₃

   • E. G. Valyashko
   • V. A. Timoshenkov

   OriginalPaper Pages: 795 - 797

10. Splitting of the P=O band in the infrared spectra of various cresyl phosphates

    • A. M. Noskov
    • V. V. Moskovskikh

    OriginalPaper Pages: 798 - 800

11. An infrared spectroscopic study of hydrogen bonding between the anions of alkylammonium salts and molecules of aliphatic alcohols

    • A. A. Lipovskii
    • T. A. Dem'yanova

    OriginalPaper Pages: 801 - 805

12. The infrared absorption of various diacetylenic carbonyl-containing compounds with hetero-aromatic substituents

    • L. I. Vereshchagin
    • S. P. Korshunov
    • Ya. A. Éidus

    OriginalPaper Pages: 806 - 808

13. The absorption spectra of derivatives of benzophenone with acceptor and donor substituents

    • R. S. Tsekhanskii
    • I. K. Serebryakova

    OriginalPaper Pages: 809 - 814

14. The infrared spectra of basic amides of diarylglycollic acids

    • V. S. Shklyaev
    • V. I. Pantsurkin

    OriginalPaper Pages: 815 - 818

15. Rate of energy transport to the luminescence level in Europium dibenzoylmethanate

    • M. E. Movsesyan
    • V. A. Gevorkyan
    • D. Kh. Grigoryan

    OriginalPaper Pages: 819 - 821

16. Polymorphic transformations in hexane and heptane and their relationship to the “multipleticity” of the phosphorescence spectra of quinoline

    • Kh. I. Mamedov
    • R. Z. Laipanov

    OriginalPaper Pages: 822 - 825

17. Luminescence spectra of lanthanide-activated yttrium orthovanadate in the region of 0.7–1.1μ and their use in the analysis of yttrium oxide

    • N. S. Poluéktov
    • S. A. Gava

    OriginalPaper Pages: 826 - 829

18. A luminescence method for the determination of heavy metal ions at low temperatures

    • M. U. Belyi
    • I. Ya. Kushnirenko

    OriginalPaper Pages: 830 - 833

19. Luminescence of yttrium oxychloride activated with Gd, Tb, Dy, Ho, Er, Yb, and Lu. II

    • É. Ya. Pesina
    • Yu. N. Balodis
    • L. E. Tarasova

    OriginalPaper Pages: 834 - 837

20. Use of quasiline luminescence spectra for quantitative determination of several polycyclic hydrocarbons

    • G. E. Fedoseeva
    • A. Ya. Khesina

    OriginalPaper Pages: 838 - 843

21. Apparatus for measuring absolute photoemission quantum yield at 550-200 nm

    • O. M. Sorokin

    OriginalPaper Pages: 844 - 847

22. The reflection coefficient of a semiinfinite layer of a scattering medium

    • G. K. Il'ich

    OriginalPaper Pages: 848 - 850

23. Measuring true temperatures on the basis of the intensity of polarized radiation

    • V. I. Sayapina
    • D. Ya. Svet

    OriginalPaper Pages: 851 - 854

24. A study of the intermolecular interaction of dimethyl sulfoxide in solution

    • P. A. Bazhulin
    • L. Singurel
    • A. V. Chekunov

    OriginalPaper Pages: 855 - 858

25. The state of anthracene adsorbed on NaY zeolite

    • G. I. Denisenko

    OriginalPaper Pages: 859 - 863

26. Feasibility of increasing the sensitivity of spectral determination of zinc, niobium, and beryllium in minerals

    • K. Samadov
    • A. A. Yankovskii

    Brief Communications Pages: 864 - 866

27. Spectrographic determination of nitrogen in foil

    • S. A. Skotnikov

    Brief Communications Pages: 867 - 868

28. The effect of high power laser emission on photographic materials

    • F. A. Korolev
    • V. I. Odintsov
    • P. A. Tandelov

    Brief Communications Pages: 869 - 870

29. Radial distribution of a population inversion in a He-Ne discharge for various ratios of the mixture components

    • V. E. Privalov
    • S. A. Fridrikhov

    Brief Communications Pages: 871 - 872

30. The infrared reflectance spectra of leucosapphire plates in the range 5–25μ and their dependence on various factors

    • K. P. Dutova

    Brief Communications Pages: 873 - 875

31. Energy transfer between trivalent chromium and ytterbium ions in silicate glasses

    • G. A. Mokeeva
    • V. P. Kolobkov
    • G. O. Karapetyan

    Brief Communications Pages: 876 - 877

32. A two-lens compensator for hologram chromatic aberration

    • Sh. D. Kakichashvili

    Brief Communications Pages: 878 - 879

33. A helium standard light source for the vacuum UV

    • A. F. Simonenko

    Brief Communications Pages: 880 - 881

34. Mean scattering frequency in transient-state light scattering

    • I. L. Katsev

    Brief Communications Pages: 882 - 883

35. A spectrographic study of the composition of vacuum condensates

    • A. S. Dem'yanchuk
    • A. M. Grin'ko

    Brief Communications Pages: 884 - 885

36. New spectral instruments from VEB Carl Zeiss Jena

    New Instruments and Materials Pages: 886 - 888

37. A bichromatic differential absorptiometer

    • A. N. Pertsev
    • V. A. Ruzin
    • M. V. Ivashin

    New Instruments and Materials Pages: 889 - 890

38. Sixtieth birthday of Mikhail Aleksandrovich El'yashevich

    Anniversaries Pages: 891 - 892