BIBLIOGRAPHY OF SELENIUM 261 



Brown and Sieg (Phys. Rev., N. S., 4, 48-61), Wave length- 

 sensibility and their significance. 



Sieg and Brown (Proc. Iowa Acad. Sci., 21, 259), The adapta- 

 tion of selenium to the measurement of energy too small 

 to be measured by other devices. 



Sieg and Brown (Phys. Rev., 4, 507-516), Wave length-sensi- 

 bility curves for the crystals of selenium. 



Dieterich (Phys. Rev., N. S., 4, 467-476), Influence of annealing 

 on the characteristics of light-sensitive selenium. 



Dieterich (Iowa Acad. Sci., 21, 257), Notes on the construction 



of selenium bridges. 

 Foersterling and Fredericks (Ann. d. Phys., 43, 1227), The 



optical constants of metallic selenium. 



Grantham (Phys. Rev., N. S., 4, 255-266), The time factor in 

 the evaluation of selenium resistance. 



Del Regno (Sc. Abs., 18, 140), The nature of the photo-electric 

 phenomena shown by selenium. 



Grippenberg (Phys. Zeits., 15, 462), The depth of light action 



in selenium. 

 Jaenichen (74 pp. Monograph on illumination measurements by 



selenium, pub. by "Mechaniker" Press), Zeits. f. Fein- 



mech. Press. 

 Pelabon (Compt. Rend., 158, 1669 and 1897), Tbermo-electrie 



power of selenium alloys. 



Stelibins (Astro. Phys. Journ., 39, 459-483), Photometric tests 

 of spectroscopic binaries. 



Schmidt (Ann. d. Phys., 44, 477-496), The aetino- dielectric ef- 

 fect in sulphur. 



Tyndall and White (Phil. Mag., 27, 370; and Phys. Zeits., 15, 

 154), Properties of selenium blocks. 



I ntiu-illrr (Engineering, 98, 611). Photoelectric effect in se- 

 lenium. 

 (Compt. Rend., 159. 41 -43V Influence of tellurium mi the 

 sensitiveness of selenium. 



1915 



Brown (Phys. Rev., N. S., 5, 74-75 t. Some fundamental photo- 

 electric relations in selenium. 



