:

  •  
                                                          

    ( . 1938)

    ( . 1938)

    , (1964). (1964, 1968), (1964-66, 1968), (1966, 1968), ( 1964-69) .

    (Arnoldson) (1861-1943)

    (Gum) (1924-60)
    ( . 1 . . .)

    :