394 PROCEEDINGS OF THE AMERICAN ACADEMY. 



12. Campetti. 



Attidi Torino, 34, 90 (1899). — Aluminium rectifier. 



13. Campetti. 



Atti di Torino, 36, 427 (1901). —Magnesium rectifier, etc. 



14. Charters. 



Journ. Phys. Chem., 9, 110 (1905). — General. Aluminium rec- 

 tifier. 



15. Cook. 



Phys. Rev., 20, 312 (1905). — Counter e. m. f. theory. 



16. Cook. 



Phys. Rev., 18, 23 (1904). — Preliminary to previous paper. 



17. Corbino and Maresca. 



N. Cimento, 12, 5 (1906). — General study of aluminium anode. 



18. Corbino. 



N. Cimento, 12, 113 (1906). — Optical investigation of film 

 thickness. 



19. Dina. 



Rend. 1st. Lomb., (1898), 31. — Aluminium anode. 



20. Ditte. 



Comptes rendus, 127, 919 (1893). — Nature of the film. 



21. Dongier. 



Journ. de Phys., (4), 2, 507 (1903). — Report and summary on 

 rectifiers. 



22. Ducretet. 



Journ. de Phys., (1), 4, 84 (1875). — Suggests rectification. 



23. Ducretet. 



Comptes rendus, 80, 280. — Same as above. 



24. Fischer. 



Ztsch. f. Elektrochem., 9, 507 (1903). — Preliminary to following 

 papers. 



25. Fischer. 



Ztsch. f. Phys. Chem., 48, 177 (1904). — Transition resistance. 



26. Fischer. 



Ztsch. f. Elektrochem., 10, 869 (1904). — As above. No polariza- 

 tion more than 3 volts. 



27. Gordon. 



Phys. Rev., 24, 60 (1907). — General paper. 



28. Gordon. 



Phys. Rev., 20, 128 (1905). — Address at Phys. Soc. meeting. 



29. Graetz. 



Ztsch. f. Elektrochem., 4, 67 (1897). — Paper read before Bunsen 

 Society. 



