TABLES 302-304. 



TABLE 302. - Peltier Effect. 



271 



The coefficient of Peltier effect may be calculated from the constants A and B of Table 298, 

 as there shown. Experimental results, expressed in slightly different units, are here given. The 

 figures are for the heat production at a junction of copper and the metal named, in calories per 

 ampere-hour. The current flowing from copper to the metal named, a positive sign indicates 

 a warming of the junction. The temperature not being stated by either author, and Le Roux not 

 giving the algebraic signs, these results are not of great value. 



# "Wied. Ann. "vol. 34, p. 767. 



t " Ann. de Chim. et de Phys." (4) vol. 



J Becquerel's antimony is 806 parts Sb 4 



10, p. 201. 



Becquerel's antimony is 806 parts Sb + 406 parts Zn 4- 121 parts Bi. 

 Becquerel's bismuth is 10 parts Bi + 1 part Sb. 



TABLE 303. -Peltier Effect, Fe-Constantan, Ni-Ou, 0-560 0. 



TABLE 304. -Peltier Electromotive Force in Millivolts. 



Le Roux, 1867; Jahn, 1888; Edlund, 1870-71 ; Caswell, Phys. Rev. 33, p. 381, 1911. 

 SMITHSONIAN TABLES. 



