Tables 205-208. 



CONDUCTIVITY FOR HEAT. 



TABLE 205. —Various Substances. TABLE 206. — Water and Salt Solutions. 



Substance. 



Carbon . . . 



Cement . . 



Cork . . . 



Cotton wool . 



Cotton pressed 



Chalk . . . 



Ebonite . . 



Felt .... 



Flannel . . 



„, \ from . 

 Glass < 



Horn 

 Haircloth 



to. 



Ice .... 



Caen stone (build- | 

 ing limestone) . f 



Calcareous sand- I 

 stone (freestone) ) 



49 

 o 

 o 



.000405 



.000162 



.000717 



.000043 



.000033 



.002000 



.000370 



.000087 



.000035 



.0005 I 



.0023 ) 



.000087 



.000042 



.00223 



.00568 



•00433 



.00211 



Authorities. 



1 G. Forbes. 



2 H., L., & D.* 



3 Various. 



4 Neumann. 



Au- 

 thor- 

 ity. 



I 

 I 

 I 



4 



TABLE 207. — Organic Liquids. 



TABLE 208. — Gases. 



Substance. 



Air • _• . . 



Ammonia . . 

 Carbon monoxide 

 " dioxide 



Ethylene . . 

 Hydrogen . . 

 Methane . . . 



Nitrogen . . 

 Nitrous oxide . 

 Oxygen . . . 



Authority. 

 I Winkelmann. 



Smithsonian Tables. 



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



198 



