:

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    ()

    ()

    1923, . : 1923-27 - (- ), 1928-50 - ( ), 1951-56 ( ), 1957-59 ( ), 1960 - . .

    ( . 1935)
    - (Boyd Orr) (1880-1971)
    ( . 1430 - . 1494)
    (Valmiera) ( 1917 )
    (Billings) (1746-1800)
    :