BIBLIOGRAPHY OF SELENIUM 253 



Stephan (Beibl. z. d. Ann., 28. 447). Construction and theory 

 of distance photography. 



1905. 



Aichi and Tanakadate (Beibl. z. d. Ann.. 29, 997)', The influence 

 of temperature on the conductivity of selenium. 



Brown (Phys. Rev., 20, 185), The effect of pressure on the re- 

 sistance of selenium. 



Block (Le Radium. 2, pp. 323-328, and 363-370), The electri- 

 cal conductivity of selenium. 



Carpini (Phys. Zeits., 7, 306), The photoelectric effect in se- 

 lenium. 



Chabot (Phys. Zeits., 6, 37 and 619). New rays or a new emana- 

 tion. 



Coste (Compt. Rend., 141. 715). The electrical conductivity of 

 selenium. 



Courvoisier (Astrom. Nachr., 167, 218), The use of selenium 

 cells for making secondary contacts with pendulum. 



Giltay (Mechaniker. 1905, p. 280), New forms of selenium 



cells. 

 Giltay (Elektrotechn. Zeits., 26, 313), Selenium cells in vacuum. 



Heschus (Phys. Zeits., 7. 163), The light-sensitiveness of se- 

 lenium. 



Korn (Elektrotechn. Zeits., 26, 1131), Electrical distance pho- 



tography. 

 Euhmer (Mechaniker, 1905, p. 280), Reply to Giltay. 

 Buhmer (Mechaniker, 1905, p. 252), New selenium cells. 



Weidert (Ann. d. Phys., 18, 1905, 811), The effect of illumi- 

 nation on the thermo-electric power of selenium. 



Wulf and Lucas (Phys. Zeits., 6, 838), The use of selenium 

 cells to determine the time of total eclipse of the sun. 



Guilloninot (Arch. Electr. Med. Expt, 13, 243). The action of 



N rays on selenium. 

 Guthe (Monthly Weather Rev.. 34, 223. 1906). Photoelectric 



properties of selenium cells. 



Raupp (Journ. Gas. Ilium.. 49. 603), Selenium and its appli- 

 cation to s-as technology. 



