:

  •  
                                                          

    (1884-1953)

    (1884-1953)

    . " . " (1912), "" (1920), . " " (. 1-2, 1946).

    - (1844-1934)
    ( . altum - ...)
    - () () (1892-1965)

    (Brookhaven National Laboratory)
    :