358 CROSS. 



1910. Charles Gordon Curtis, of New York, for his improvements 



in the utiHzation of heat as work in the steam turbine. 



1911. James Mason Crafts, of Boston, for his researches in high- 



temperature thermometrj' and the exact determination of 

 new fixed points on the thermometric scale. 



1912. Frederic Eugene Ives, of Woodcliff-on-Hudson, for his optical 



inventions, particularly in color photography and photo- 

 engraving. 



1913. Joel Stebbins, of Urbana, for his development of the selenium 



photometer and its application to astronomical problems. 



1914. William David Coolidge, of Schenectady for his invention of 



ductile tungsten and its application in the production of 

 radiation. 



1915. Charles Greeley Abbot, of Washington, for his researches on 



solar radiation. 



1917. Percy Williams Bridgman, of Cambridge, for his thermo- 



dynamical researches at extremely high pressures. 



1918. Theodore Lyman, of Cambridge, for bis researches on light of 



very short wave-length. 

 1920. Irving Langmuir, of Schenectady, for his researches on 

 thermionic and allied phenomena. 



Grants for Research from the Rumford Fund. 



1832-1862. 1. Observatory at Cambridge. For telescope and 



other apparatus $3776 



2. Enoch Hale. For rain gauges and sundry expenses 

 for experiments and investigations relating to the 

 fall of rain 1697 



1862. 3. Philander Shaw. Experiments relating to air- 



engines 600 



1863. 4. Ogden N. Rood. Physical relations of iodized plate 



to light. (Appropriation subsequently trans- 

 ferred to another research, viz., photometry, 7.) 300 



1864. 5. Wolcott Gibbs. For purchase of a Meyerstein 



spectrometer and Regnault's apparatus for meas- 

 uring vapor tension 600 



1865. 6. Josiah P. Cooke, Jr. For purchase of glass prisms 



to be used in an investigation of metallic spectra. 

 (These prisms were purchased from the Academy 

 byProfessor Cooke in 1871.) 200 



