Tables 225-228. 

 CONDUCTIVITY FOR HEAT. 



207 



TABLE 225. —Various Substances. 



Substance. 



Asbestos paper 

 Blotting paper . 

 Carbon . . . 

 Portland cement 

 Cork .... 

 Cotton wool 

 Cotton pressed 

 Chalk. . . . 

 Ebonite , . . 

 Felt .... 

 Flannel (dry) . 



Horn .... 

 Haircloth . . 



Ice . . . . i 



Leather, cow-hide 

 " chamois . 



Linen 



Silk 



Caen stone (build-) 



ing limestone) ) 

 Calc's sandstone | 



(freestone) . ( 



49 



.00043 



.00015 



.000405 



.0007 1 



.000717 



.000043 



.000033 



.002000 



.000370 



.0000S7 



.00012 



.0011 j 



.0023 j 



.000087 



.000042 



.00223 



.0056S 



.00042 



.00015 



.0002 1 



.000095 



•00433 



Au- 

 thor- 

 ity. 



1 G. Forbes. 



2 H., L., & D.* 



3 Various. 



4 Neumann. 



5 Lees-Chorlton. 



TABLE 226. — Water and Salt Solutions. 



TABLE 228. — Qases. 



Substance- 



Air . . . 

 Argon . . 

 Ammonia . 

 Carbon monoxide 

 " dioxide 



Ethylene . . 



Helium . . . 



Hydrogen . . 



Methane . . 



Nitrogen . . 

 Nitrous oxide 

 Oxygen . . . 



o 



7-8 



7-8 

 7-8 

 7-8 



it 

 X 1 0000 



•389 

 .45S 

 •499 

 •307 



•395 

 3-39 

 3-27 



.647 



•524 

 •350 

 •563 



.00190 

 .00260 

 .00548 



.00445 

 .00318 

 .00175 



.00446 



1 Winkelmann. 



2 Schwarze. 



Smithsonian Tables. 



Herschel, Lebour, and Dunn (British Association Committee). 



