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 3rd. To lay before the Governments of the Union any difficulties or obstacles that may arise in the efficacious application of the present Convention, and indicate means to correct or remove such difficulties or obstacles;

4th. To help the Governments of the Union in the preparation of international conferences for the study and progress of legislation and intellectual and industrial properties, for alterations which it may be proper to introduce in the regulations of the Union or in the treaties in force on the said subject, and in case such conferences take place the directors of the Bureaus, not appointed to represent any countries, shall have a right to attend the meetings and express their opinions at them, but not to vote;

5th. To present to the Governments of the countries where they shall have their seats a yearly report of their labors, which shall be communicated to all of the States of the Union;

6th. To establish relations for the exchange of publications, informations and data conducive to the progress of the institution with similar bureaus, and institutions, and with scientific, literary, artistic, and industrial corporations of Europe and America;

7th. To cooperate as agent for each one of the Governments of the Union for the transaction of any business, the taking of any initiative, or the execution of any act conducive to further the ends of the present Convention with the offices of the other Governments.

The provisions contained in the Treaties of Mexico of January 27th, 1902, on patents of invention, drawings and industrial models, and commercial trade-marks, and on literary and artistic property, so far as regards the formalities of the registration or recognition of said rights in other countries than that of origin, shall be considered as replaced by the provisions of the present Convention as soon as one of the International Bureaus shall have been established, and only with regard to those States which have concurred in its constitution; in all other cases the said treaties shall