1860-1943 1888-1972 1889- 20thcentury albertjames artistic biography civilization correspondence correspondencevernadskai︠a︡ correspondencevernadskiĭ creation(literary david diariessylvester frances geologists geology greatbritain history lloyd-george lloydgeorge mistresses modern natalii͡aegorovna parispeaceconference(1919-1920) philosophy philosophyofnature politicalandsocialviewsvernadskiĭ politicalandsocialviewsвернадский politicsandgovernment primeministers russia science scienceandstate secretaries sovietunion ukraine vernadskai͡a vernadskiĭ вернадский