TO THE MEMORY OF THE LATE 
EDWARD T. FRISTOE, 
Whose high attainments were recognized by 
the many Scientific Institutions that conferred 
upon him honorary degrees :— 
Professor of Mathematics and Chemistry in 
the Columbian University, and teacher in the 
National College of Pharmacy, Washington, 
: D.C. | : 
Se ea er 
guished scholar this work is dedicated by 
: Tue AUTHOR. 
