TABLE IV 



Compilation of Values of Photoelectric and Thermionic Work Functions in 

 Volts and the Value of the Heat Function 



* For complete listing see S. Dushman, Rev. Mod. Phys. 2, 381 (1930). 



1 A. J. Ahearn. Phys. Rev. 44, 277 (1933). 



2 H. Bomke, Ann. d. Physik 10, 579 (1931). 



3 A. B. Cardwell, Proc. Nat. Acad. Sci. 14, 439 (1928). 



4 A. B. Cardwell, Phys. Rev. 38, 2033 (1931). 



5 A. B. Cardwell, Phvs. Rev. 38, 2041 (1931). 



6 R. J. Cashman and W. S. Huxford, Phys. Rev. 43, 811 

 (1933). 



' Chien Cha, Phil. Mag. 49, 262 (1925). 



8 Cooke and Richardson. Phil. Mag. 25, 624 (1913); 26, 

 472 (1913). 



9 C. J. Davisson and L. H. Germer, Phys. Rev. 20, 300 

 (1922); 24, 666 (1924). 



19 J. H. Dillon. Phys. Rev. 38, 408 (1931). 



11 W. DistlerandG. Monch, Zeits. f. Physik 84, 271 (1933). 



12 E. H. Dixon, Phys. Rev. 37, 60 (1931). 



13 R. Dopel, Zeits. f. Physik 33, 237 (1925). 



14 L. a. DuBridge, Proc. Nat. Acad. Sci. 12, 162 (1926). 



15 L. A. DuBridge. Phys. Rev. 32, 961 (1928). 



18 L. a. DuBridge and W. W. Roehr, Phys. Rev. 39, 99 

 (1932). 



" L. a. DuBridge and W. W. Roehr, Pliys. Rev. 42, 52 

 (1932). 



18 H. K. Dunn. Phys. Rev. 29, 693 (1927). 



19 S. Dushman, Phys. Rev. 21. 623 (1923). 



20 Dushman, Rowe, Ewald and Kidner, Phys. Rev. 25, 338 

 (1925). 



21 A. Engelmann, Ann. d. Phvsik 17, 185 (1933). 



22 R. H. Fowler, Phys. Rev. 38, 45 (1931). 



23 G. W. Fox and R. M. Bowie. Phys. Rev. 44, 345 (1933). 



24 G. N. Glasoe, Phys. Rev. 38, 1490 (1931). 



25 A. Goetz, Physik. Zeits. 24, 377 (1923); 26. 206 (1925); 

 Zeits. f. Physik 42, 329 (1927); 43, 531 (1927). 



26 A. Goetz. Phys. Rev. 33. 373 (1929). 



2' W. B. Hales, Phys. Rev. 32, 950 (1928). 



28 R. Hamer. J. Opt. Soc. Am. 9, 251 (1924). 



29 F. Horton, Phil. Trans. A207, 149 (1907). 



30 A. L. Hughes, Phil. Trans. A212, 205 (1912). 



3'!^. E. Ives and A. L. Jolmsrud. Astrophys. J. 60. 231 

 19 24). 



32 H. E. Ives, Jour. Opt. Soc. Am. 8, 551 (1924). 



33 Jentzsch, Ann. d. Physik 27, 148 (1908). 



34 K. H. Kingdon. Phys. Rev. 25, 892 (1925). 



35 Kosters, Zeits. f. Pliysik 66. 825 (1930). 



38 1. Langmuir, Phys. Rev. 2. 450 (1913); Physik. 

 Zeits. 15. 516 (1914). 



3' I. Langmuir. Trans. Am. Electrochem. Soc. 29. 125 

 (1916). 



38 H. Lester. Phil. Mag. 31, 197 (1916). 



39 Lukirsky and Prilezaev. Zeits. f. Physik 49. 236 

 (1928). 



40 M. J. Martin. Phys. Rev. 33, 991 (1929). 



41 R. A. Millikan. Phys. Rev. 7. 355 (1916). 



42 L. W. Morris. Phys. Rev. 37, 1263 (1931). 



43 T. J. Parmley, Pliys. Rev. 30, 656 (1927). 



44 Pohl and Pringsheim. Verh. d. Phys. Grs. 1911-14. 



45 Rentschler. Henry and Smith. Rev. Sci. Inst. 3. 794 

 (1932). 



48 N. B. Reynolds, Phys. Rev. 35, 158 (1930). 

 4' Roller, Phys. Rev. 36. 738 (1930). 



48 S. C. Roy, Proc. Roy. Soc. A112. 599 (1926). 



49 R. W. Sears. Unpublished work. 



50 E. F. Seiler, Astrophys. Jour. 52, 129 (1920). 

 61 W. Schlichter. Ann. d. Physik 47. 573 (1915). 



52 G. Siljeholm. Ann. d. Pliysik 10, 178 (1931). 



53 W. Souder. Phys. Rev. 8, 310 (1916). ., 



54 H. J. Spanner, Ann. d. Pliysik 75, 609 (1924). 



55 E. R. Stoekle, Phys. Rev. 8, 534 (1916). 



58 H. L. Van Velzer, Phys. Rev. 44, 831 (1933). 

 5' H. B. Wahlin and L. O. Sordahl. Phys. Rev. 45, 886 

 (1934). 



58 Wehnelt and Seiliger, Zeits. f . Physik 38, 443 ( 1926) . 



59 A. H. Warner, Phys. Rev. 38, 1871 (1931). 

 80 G. B. Welch, Phys. Rev. 31, 709 (1928). 



61 S. Werner. Upsala Univ.. 1914. 



82 R. P. Winch, Phys. Rev. 37. 1269 (1931). 



83 C. Zwikker, Proc. Amst. .-Vcad. Sci. 29, 792 (1926). 

 64 C. Zwikker, Pliysik. Zeits. 30, 578 (1929). 



