• Fine Structure in the Arc Spectra of Indium and Thallium 

  Narayan, A. L (Nature Publishing Group, 1931-10-17)

  Indium.-The hyperfine structures of a few indium arc lines have been reported by Jackson1 and McLennan.2 Jackson observed that each of the lines l2S½-22P½ and is a quartet; while McLennan observed only three components. ...
• Spectra of doubly and trebly ionised thallium 

  Narayan, A. L; Pattabhi, P; Rao, A. S (Nature Publishing Group, 1929-09-20)

  CONTINUING our previous work on Tl II and Pb III, the spectra of Tl III and Tl IV have been under examination by us for some time past. A preliminary attempt, by the application of the X-ray doublet-laws, revealed a number ...
• The second spark spectrum of lead 

  Rao, A. S; Narayan, A. L (Nature Publishing Group, 1929-11-23)

  THE second spark spectrum of lead was recently analysed by K. R. Rao and ourselves; and a preliminary report of the series regularities discovered was published in a paper (Ind. J. Phy., vol. 2, pt. 4, pp. 468-476.) We ...
• Spectrum of doubly ionised arsenic 

  Rao, A. S; Narayan, A. L (Nature Publishing Group, 1929-08-10)

  THE deepest term of the separation of doubly ionised arsenic (As III) is 4p 2P1. The values of these doublet terms relative to 2G were reported in a recent paper (Ind. J. Phy., 5, 3, p. 3) to be 220, 221 cm.-1. It was found ...
• Über das zweite Funkenspektrum des Bleies 

  Rao, A. S; Narayan, A. L (Verlag Von Julius Springer, Berlin, 1930-09)
• Notiz uber den Bau des Pb IV - Spektrums 

  Rao, A. S; Narayan, A. L (Verlag Von Julius Springer, Berlin, 1930-01)
• A precision direct-reading spectrophotometer 

  Narayan, A. L; Ananthasubrahmanyam, C. K (Calcutta University Press, 1940-10)

  The experimental errors inherent in photographic photometry are discussed and a direct reading spectrophotometer for the visible especially adapted to the study of line, contour and absorption and fluorescence spectra is ...
• Council report on solar activity in 1939: Prominences 

  Narayan, A. L (Royal Astronomical Society, 1940-02)
• Council report on solar activity in 1940: Prominences 

  Narayan, A. L (Royal Astronomical Society, 1941)
• Council report on Solar Activity: Prominences, 1941, 1942 

  Narayan, A. L (Royal Astronomical Society, 1943)
• Council report on solar activity in 1943: Prominences 

  Narayan, A. L (Royal Astronomical Society, 1944)
• Council report on solar activity in 1944: Prominences 

  Narayan, A. L (Royal Astronomical Society, 1945)
• Council report on solar activity in 1945: Prominences 

  Narayan, A. L (Royal Astronomical Society, 1946)
• Council report on solar activity in 1938: Prominences 

  Narayan, A. L (Royal Astronomical Society, 1939-02)
• Summary of prominence observations for the year 1939 

  Narayan, A. L (Government Observatory, Madras, 1940-08-28)
• Summary of prominence observations for the second half of the year 1938 

  Narayan, A. L (Government Observatory, Madras, 1939-12-29)
• Summary of prominence observations for the first half of the year 1938 

  Narayan, A. L (Government Observatory, Madras, 1939-05-23)
• Summary of prominence observations for the second half of the year 1937 

  Narayan, A. L (Government Observatory, Madras, 1938-11-23)
• Summary of prominence observations for the first half of the year 1937 

  Narayan, A. L (Government Observatory, Madras, 1938-06-02)
• Summary of prominence observations for the second half of the year 1936 

  Narayan, A. L (Government Observatory, Madras, 1938-01-28)

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