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Natural history --- Natural history. --- Real Sociedad Española de Historia Natural --- Real Sociedad Española de Historia Natural. --- Spain. --- History, Natural --- Natural science --- Physiophilosophy --- Biology --- Science --- Sociedad Española de Historia Natural, Real --- Sociedad Española de Historia Natural --- Espagne --- Espainiako Erresuma --- España --- Espanha --- Espanja --- Espanya --- Estado Español --- Hispania --- Hiszpania --- Isupania --- Kingdom of Spain --- Regne d'Espanya --- Reiaume d'Espanha --- Reino de España --- Reino d'Espanya --- Reinu d'España --- Sefarad --- Sepharad --- Shpanie --- Shpanye --- Spanien --- Spanish State --- Supein --- Periodicals --- Spain

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En 1950, se scinde en 3 sections : Actas : voir E 106a RSección Biológica : voir E 105 RSección Geológica : voir E 106 R

Biology --- Biology. --- Biologie. --- Life sciences --- Biomass --- Life (Biology) --- Natural history --- Periodicals --- Life Sciences --- Biologie --- Periodicals. --- Périodiques --- Geology --- Geology.