Proceedings of the American Academy of Arts and Sciences. 

 Vol. XLI. No. 25. — March, 1906. 



CONTRIBUTIONS FROM THE JEFFERSON PHYSICAL LABORATORY, 

 HARVARD UNIVERSITY. 



ON THERMO-ELECTRIC HETEROGENEITY IN CERTAIN 

 ALLOTS, ESPECIALLY GERMAN-SILVER. 



By Edwin H. Hall, L. L. Campbell, and S. B. Serviss. 



Investigations on Light and Heat made or published, wholly or in part, with Appropriations 

 from the Rumford Fund. 



