402 FINAL ACT OF SECOND PAN AMERICAN SCIENTIFIC CONGRESS. 



HOLLAND, W. J., Carnegie Museum, Pittsburgh, Pa. 

 Delegate Carnegie Museum. 

 Alternate American Association of Economic Entomologists. 



HOLLANDER, JACOB H., Professor, Johns Hopkins University, Baltimore, 



Md. 



Chairman of Subsection 3, Section IX. 

 Paper presented: Economic Theorizing and Scientific Progress. 



HOLLEY, FRANCIS, Director Bureau of Commercial Economics, Washing- 

 ton, D. C. 



Delegate Bureau of Commercial Economics. 



Paper presented: Special Courses for Commercial Study Bureau of 

 Commercial Economics. 



HOLLIS, IRA N., Worcester, Mass. 



Delegate Worcester Polytechnic Institute. 



HOLLISTER, ScoviLLE, Compania Estanifera, Llallagua, Bolivia, South 



America. 

 Paper presented : Metallurgical Practices at the Tin Mines of Bolivia. 



HOLMES, GEORGE K., Bureau of Crop Estimates, Department of Agri- 

 culture, Washington, D. C. 

 Delegate Department of Agriculture. 



HOLMES, WILLIAM H., Smithsonian Institution, Washington, D. C. 



Official Delegate of the United States. 



Delegate- 

 Archaeological Institute of America. 

 School of American Archaeology. 



Member of Executive Committee. 



Chairman of Section I. 



Paper presented: The Place of Archeology in Human History. 



HOLT, EDWARD B., Professor, Harvard University, Cambridge, Mass. 

 Delegate American Psychological Association. 



HOOD, OZNI P., Bureau of Mines, Interior Department, Braddock and 

 Waverly streets, Pittsburgh, Pa. 

 Alternate Bureau of Mines. 



HOOGEWERFF, JOHN A., Navy Department, Washington, D. C. 

 Delegate Naval Observatory. 



HOOKER, DONALD R., Upland, Roland Park, Md. 

 Delegate American Social Hygiene Association. 



