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ing to the organization committee of each session the care of detailing its programme, desires that in future a place should be reserved for purely scientific studies, besides the works of unification; and also wishes, that, following the example given a t Bologna. an exhibition of collections and maps should accompany each sessioii of the congress. J. B. MARCOU.doi:10.1126/science.ns-1.18.513-b pmid:17735430 fatcat:j2doj74l2vhtppzicjbqtwot6y