AUGUSTUS JAY DU BOIS 



Augustus Jay DuBois was bom April 25, 1849; was graduated from 

 the Sheffield Scientific School in 1869, and was awarded the degree of civil 

 engineer in 1870 and the degree of doctor of philosophy in 1873. Later 

 he studied mechanics for two years at the Mining Academy in Freiburg, 

 Saxony, and from 1875 to 1877 he was professor of civil engineering and 

 mechanical engineering at Lehigh University. In 1877 Professor DuBois 

 was appointed professor of mechanical engineering in the Sheffield Scientific 

 School and in 1884 was transferred to the professorship of civil engineer- 

 ing, which position he occupied until his death. 



Professor DuBois was the author of some of the best-known treatises 

 on mechanics and stresses in the English language. His book on "Graphic 

 Statics," published in 1876, was largely instrumental in introducing to Amer- 

 ican engineers the graphic method of determining stresses in framed struc- 

 tures now so widely used. This was followed by his translations of Ront- 

 gen's "Thermo-dynamics," Weyrauch's "The Calculation of the Strength 

 and Dimensions of Iron and Steel Construction," "Hydraulics and Hydrau- 

 lic Motors," and " Heat, Steam and the Steam Engine" from Rontgen's 

 "Mechanics." In 1883 his elaborate and original book on "Strains in 

 Framed Structures " took its place as one of the most important contribu- 

 tions to engineering literature, being perhaps the first comprehensive treat- 

 ment of the subject. A series of books on mechanics culminated in his 

 "Mechanics of Engineering," published in 1901. 



Professor DuBois was a member of this Society and of the American 

 Society of Mechanical Engineers, the American Society of Civil Engineers, 

 the American Institute of Mining Engineers, the Connecticut Society of Civil 

 Engineers, the Society for the Promotion of Engineering Education, etc. 



He died October 19, 1915. 



CHARLES ANTHONY HARRINGTON 



Charles Anthony Harrington was born on June 29, 1880, at Fall River, 

 Mass. On March 10, 1915, he died from tuberculosis at the Naval Hospital, 

 Las Animas, Colo. 



He was appointed to the Naval Academy from Fall River and entered 

 the service as a naval cadet on July 2, 1900. On February 1, 1904, he 



