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Front matter
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_
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Rubric: Atti della Società
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3
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Article: Contribuzione alla fauna coleotterologica ticinese
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16
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Article: Die Vögel des Kantons Tessin : 1. Nachtrag. Periode 1945-1947
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95
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Article: Observations sur la flore du Tessin (1947)
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111
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Article: Nota petrografica sulle rocce di Nibbio e Migiandone (Val d'Ossola)
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125
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Rubric: Stato meteorologico
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134
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Bibliography: Riassunto dei lavori scientifici publicati dall'Osservatorio Ticinese a Locarno-Monti
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140
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Rubric: Recensioni e notizie
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149
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