Abstract
BY the death on January 15 of Henri Deslandres, born in Paris on July 24, 1853, the Paris Academy of Sciences has lost its senior member, and astronomy and spectroscopy have lost one whose active researches go back more than sixty years. Destined for an army career, he resigned in 1881 when a captain in the Engineers and devoted himself to spectroscopy and astronomy. His earliest papers on band spectra date from 1885, and he continued his work until last year, publishing his last paper in the Comptes rendus within a week of his ninety-fourth birthday. Even at that age he suggested taking up fresh work as soon as sufficiently accurate material was available. Laws connecting the wave numbers of separate lines in the same band and of the heads of different bands are associated with his name.
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Dr. Henri Deslandres, For.Mem.R.S. Nature 161, 303 (1948). https://doi.org/10.1038/161303a0
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DOI: https://doi.org/10.1038/161303a0