discovery of truth and its application to human need. Its 
scope is as wide as the range of influences, chemical, physical, 
biological, and economic, which affect technology. 
The effects of the influence of scientific investigation on 
behalf of technology are so broad and beneficial that they 
are interwoven intimately with every-day life and contribute 
constantly to human progress. Industrial research is one 
of the greatest gifts of science to mankind. 
OFFICERS OF ADMINISTRATION OF 
MELLON INSTITUTE 
TRUSTEES OF THE INSTITUTE 
Andrew W. Mellon, Washington, D. C. 
Richard B. Mellon, Pittsburgh, Pa. 
John G. Bowman, Pittsburgh, Pa. 
Henry A. Pumps, Pittsburgh, Pa. 
EpwarDp R. WEmLEIN, Pittsburgh. Pa. 
EXECUTIVE STAFF OF THE INSTITUTE 
Edward R. Weidlein. . 
E. Ward Tillotson. 
William A. Hamor 
Harry S. Coleman. 
George D. Beal. . 
Henry A. Phillips. . 
vv... Director 
. Assistant Director 
Assistant Director 
. Assistant Director 
Assistant Director 
Treasurer 
Leonard H. Cretcher. .. .. Cs 
Head, Department of Research in Pure Chemistry 
.. . Secretary to the Director 
Lois B. Whittle. . . 
[.ois Heaton. 
Iabrarian