22 REPORT OP' THE SECRETARY GENERAL. 



The report of the Final Act, English edition, contains the names of 

 the official delegates, pages 7-16 ; list of learned societies, institutions, etc., 

 pages 293-308; list of committees appointed in all countries, pages 

 309-329; honorary members, pages 331-336; and an alphabetical list 

 of the names of the delegate members of societies and institutions, mem- 

 bers of committees -and writers of papers, pages 336-502. This Report 

 of the Secretary General reprints with different arrangement, as Appendix 

 C, page 238, the names of the adhering societies, institutions, and 

 organizations and their delegate members of the congress. The program 

 for the 45 subsections of the congress was framed by the sectional com- 

 mittees as a whole or by subsection committees. This program as pre- 

 sented and actually carried out at the time of the congress, with the 

 names of the presiding officers and the time and place of meeting of the 

 different sessions, is printed in the report of the Final Act as a special 

 Appendix, pages 167-291. This arrangement, however, does not permit 

 one to see at a glance the important and valuable scientific contribution 

 in papers of the Second Pan American Scientific Congress. The titles of 

 these papers, arranged in the order of sections and subsections, are, there- 

 fore, printed as Appendix B, page 195, of this report. Joint sessions 

 were frequently held between the different sections or subsections of the 

 congress. Several notable sessions were held in addition by special invi- 

 tation of the executive committee between certain sections and leading 

 scientific and learned societies of the Urited States that were meeting in 

 Washington at the time of the congress. A copy of the letter of invita- 

 tion to these associations and the names of those affiliating for th*^ 

 purpose in question follow : 



LETTER OF INVITATION TO AFFILIATED SOCIETIES. 



July 24, 1915. 



Gentlemen : I have the honor as secretary general of the Second Pan 

 American Scientific Congress to formally invite your association on behalf 

 of the executive committee of the congress to participate in the program 

 of the congress in one or more joint sessions, and to state that the chairmen 

 of the various program sections of the congress have been authorized to 

 arrange for such joint sessions with the duly appointed officials of these 

 national associations with the subject matter of which their own is in 

 accord. 



The assistant secretary general of the congress has been in conference 

 with representatives of these national associations and understands that 

 mutually satisfactory arrangements for these joint sessions can be made. 



