GROUP OF INTERNATIONAL LECTURERS 



The group reproduced here presents many famous lecturers of the Interna- 

 tional Congress of Arts and Science. In the front row (from left to right) 

 are Dr. George M. Duncan, Professor of Philosophy, Yale University; Dr. 

 William A. Hammond, Professor of Philosophy and Aesthetics, Cornell Uni- 

 versity ; Dr. Ludwig Boltzmann, Professor of Physics. University of Vienna ; 

 D'r. James McKeen Cattell, Professor of Psychology, Columbia University; 

 Dr. \Vilhelm Ostwald, Professor of Physical Chemistry, University of Leipzig; 

 Dr. James E. Creighton, Professor of Philosophy, Cornell University; Dr. 

 Ifarald Hoeffrling, Professor of Philosophy. University of Copenhagen; Dr. 

 Benno Erdmann, Professor of Philosophy, University of Bonn ; Dr. Jacques 

 I.oeb. Professor of Physiology, University of California; and Dr. Svante A. 

 Arrhenius. Professor of Phvsics, University of Stockholm. 



