1 deem it my duty to express my gratitude to the Jol- 

 lowing gentlemen for many favors in the past : 



WILLIAM JAMES, Ph. D., 



Professor of Psychology, Logic, etc., at Harvard University, 

 Cambridge, Mass. 



Hon. SETH LOW, L.L.D., 



President of Columbia College, N. Y. 



MORRIS LOEB, Ph. D., 



Professor of Chemistry of the University of the City of New York. 



DAVID L. EINSTEIN, Esq. 

 Hon. ISIDOR STRAUS. 

 BORRIS GOODSON, Esq. 



