THE RUMFORD FUND 21 



WILLIAM J. HUMPHREYS. Shift of spectrum lines 



due to pressure 8300 



NORTON A. KENT. Circuit conditions influencing 



electric spark lines 250 



EDWARD W. MORLEY. Nature and effects of 



ether drift 500 



1904. JOHN A. DUNNE. Fluctuations in solar activity as 



evinced by changes in the difference between 

 maximum and minimum temperatures .... 200 



CARL BARUS. Optical method of study of radio- 

 actively produced condensation nuclei. (Appro- 

 priation not yet called for) . 200 



DEWITT B. BRACE. Double refraction in gases in 



an electrical field 200 



ROBERT W. WOOD. Optical and other physical 



properties of sodium vapor 350 



NORTON A. KENT (Addition to former appropriation). 



Circuit conditions influencing electric spark lines 100 



ARTHUR L. CLARK (Addition to former appropria- 

 tion). Molecular properties of vapors in the 

 neighborhood of the critical point 150 



1905. DEWITT B. BRACE (Addition to former appropria- 



tion). Double refraction in gases in an electrical 



field 200 



CHARLES B. THWING. Thermo-electric force of 



metals and alloys 150 



HARRY W. MORSE. Fluorescence 500 



JOHN TROWBRIDGE. Electric double refraction of 



light 200 



EDWIN H. HALL. Thermal and thermo-electric 



properties of iron and other metals ..... 200 



The following list contains the titles of papers relat- 

 ing to heat and light which have been published in the 

 Memoirs or Proceedings of the Academy, and which, 



