THE RUMFORD FUND 9 



(1876-1878), Joseph Levering (1878-1892), John Trow- 

 bridge (1892-1897), Charles R. Cross (1897-). 



The Rumford Premium is awarded by the Academy 

 upon the recommendation of the Rurnford Committee. 

 It has been given to the following persons and on the 

 ground stated. 



AWARDS OF THE RUMFORD PREMIUM OF THE 

 AMERICAN ACADEMY. 



1839. ROBERT HARE, of Philadelphia, for his invention of the 



compound or oxyhydrogen blowpipe. 

 1862. JOHN ERICSSON, of New York, for his improvements in the 



management of heat, particularly as shown in his caloric 



engine of 1855. 



1865. DANIEL TREADWELL, of Cambridge, for improvements in the 



management of heat, embodied in his investigations and 

 inventions relating to the construction of cannon of large 

 calibre, and of great strength and endurance. 



1866. ALVAN CLARK, of Cambridge, for his improvements in the 



manufacture of refracting telescopes, as exhibited in his 



method of local correction. 

 1869. GEORGE HENRY CORLISS, of Providence, for his improvement 



in the steam-engine. 

 1871. JOSEPH HARRISON, JR., of Philadelphia, for his mode of 



constructing steam-boilers, by which great safety has 



been secured. 



1873. LEWIS MORRIS RUTHERFURD, of New York, for his improve- 

 ments in the processes and methods of astronomical 



photograph v. 

 1875. JOHN WILLIAM DRAPER, of New York, for his researches on 



radiant energy. 

 1 880. JOSIAH WILLARD GIBBS, of New Haven, for his researches in 



thermodynamics. 



