Article Nº 1748 Scientist or naturalist Vol. II · p. 222
Hagen (Dr O.)
Original title: Hagen (Dr. O.)
Dr O. Hagen was the author of an 1861 note on an exceptional dry spell in Madeira.
Notiz uber eine aufserordentliche Lufttrockenheit in Madeira (1861, pamphlet of 5 pp.).
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