tion of the adhering states is free. It shall answer, without expense, 

 to all their demands for information. 



Article 15. The total assessment of the contracting states 

 divided by the sum of the units attributed to each of them in execu- 

 tion of the preceding arrangements, will give the unit of the part 

 leviable. It will suffice to multiply this by the number of units 

 assigned to each of the states to find the amount of its contribution 

 to the budget of the International Bureau of Ethnography. 



Article 16. In order to place the institution in position to 

 reahze its object as exact and complete as possible, the contracting 

 parties engage themselves each so far as concerns its own country. 



1 To execute, as rapidly as possible, the obUgations springing 

 from Article 2. 



2 To address to the International Bureau: 



a). A copy of all official publications (books or periodicals) 

 appearing which pertain to the aim of the institution. 



b). The Hst, manuscript or printed, of all works (books or 

 pamphlets) which shall appear in the future. This list which shall 

 be addressed to the Bureau of Ethnography with as much regularity 

 as possible, shall be held as official. It shall indicate for each work 

 the name and surname of the author, or the name of the pubhsher. 

 The title of the work with eventually such necessary supplementary 

 directions as to assure a methodic classification by contents of the 

 work, on examining the title, the place and date of publication, the 

 size, number of pages and price. 



Article 16. The rule of procedure having the same obligatory 

 force as the present convention, but within the limits of this same, 

 shall be made by the international committee. 



Article 17. Those States and Colonies which have not taken 

 part in the present convention, may be admitted later. Their ac- 

 cession will be made in writing to the Belgian Government which shall 

 make the fact known to all the other contracting governments. The 

 accession shall carry in full right adhesion of all the clauses and ad- 

 missions, to all the advantages stipulated in the present convention. 



Article 18. The present convention shall go into effect the 

 and shall remain in effect during twenty years. 



If twelve months before the expiration of the first twenty years, 

 the present convention shall not disband, the Bureau shall exist 

 during a new period of twenty years, and so on. Withdrawal shall 

 be addressed to the Belgian Government. It shall not be in effect 

 as regards the country which shall make it, the convention remaining 

 executor for the other adhering countries. 



Later the National Museum and the Field Museum were invited 

 to become members of the provisional organizing body. 



