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Archival descriptionScientific and friendly relations.
Scientific and friendly relations.
Links with different institutions.
Links with different institutions.
Correspondence from the Director.
Correspondence from the Director.
Commisio permanens de studiis.
Commisio permanens de studiis.
Employees.
Employees.
Exchanges.
Exchanges.
Reviews and notices.
Reviews and notices.
Publisher.
Publisher.
General organization and administration.
General organization and administration.
First edition (booklets).
First edition (booklets).
Results 1 to 10 of 70