ACT OF SECOND PAN AMERICAN SCIENTIFIC CONGRESS. 371 



DiAZ LIRA, JAVIER, Member of the Chilean Bar, Santiago, Chile, South 



America. 

 Official Delegate of Chile. 



DICKINSON, H. C., Bureau of Standards, Washington, D. C. 

 Alternate American Society of Refrigerating Engineers. 



DIEZ DE MEDINA, ALBERTO, La Paz, Bolivia, South America. 

 Delegate Bolivian Society of International Law. 

 Honorary Member. 



DIGGS, HERMAN M., New York University, Washington Square, New 



York, N. Y. 

 Delegate New York University. 



DIHIGO, JUAN MIGUEL, Habana, Cuba. 



Delegate Cuban Society of International Law. 

 Member Cooperating Committee, Cuba. 



DILLINGHAM, FRANK T., Yale University, New Haven, Conn. 

 Delegate College of Hawaii. 



DILLON, JOHN H., Commissioner, Department of Foods and Markets, 



New York, N. Y. 

 Member of Committee, Subsection 7, Section III. 



DINGER, HENRY C., Navy Department, Washington, D. C. 

 Delegate Bureau of Steam Engineering. 



DIXON, FRANK HAIGH, Home Building, Thirteenth and F Streets NW., 



Washington, D. C. 

 Delegate Bureau of Railway Economics. 



DIXON, ROLAND B., Harvard University, Cambridge, Mass. 

 Member of Committee, Subsection i, Section I. 



DIXON, SAMUEL G., Commissioner, Department of Health, Common- 

 wealth of Pennsylvania, Harrisburg, Pa. 

 Delegate Department of Health, Commonwealth of Pennsylvania. 



DODD, W. F., Professor, University of Illinois, Urbana, 111. 

 Alternate American Political Science Association. 



DODGE, RAYMOND, Professor, Wesleyan University, Middletown, Conn. 

 Delegate American Psychological Association? 



DODGE, RICHARD E., Professor, Teachers' College, Columbia University, 



New York, N. Y. 



Paper presented: How to Procure Adequately Prepared Instructors 

 for Commercial Courses in Elementary Schools. 



