Table 221 . 



COEFFICIENTS OF THERMAL EXPANSION. 



Coefficients of Linear Expansion of the Chemical Elements. 



In the headin;; of the columns T is the temperature or range of temperature, C the coefficient of linear expansion, 

 : autliority for C, il/the mean coefficient of expansion between o^ and loo^ C, o and /3 the coefficients in the 

 jn /f = /o (> -i-a' + i3'')> where /« 's the length at o^ C. and /t the length at f^ C, Wo is the authority for a, 



A I the ; 

 equation , 

 fi, and >n. 



N. H. — The above table has been with a few exceptions compiled from the results published by Fizeau, " Comptes 

 Rendus," vol. 68, and Matthieson, " Proc. Roy. Soc," vol. 15. 



Smithsonian Tables. 



214 



