THERMAL CONDUCTIVITY AND VISCOSITY OF GASES. 



119 



In Table III the values of the constants are given which 

 have been used in the calculation of the results shown in 

 Tables I and II. These values have been copied from 

 Hercus and Laby's paper with the exception of a few 

 additional entries which have been made from sources 

 mentioned in the footnotes. 



Table III. 



Gas. 



m 



He 



4 



A 



40 



Ne 



20 



H 2 



2 



N 2 



28 



o 2 



32 



Air 



29 



NO 



30 



CO 



28 



ci 2 



71 



co 2 



44 



N 2 



44 



H 2 S 



34 



S0 2 



64 



os 3 



76 



NH 3 



17 



C 2 H 2 



26 



CH 4 



16 



2 H 4 



. 28 



C 2 H 6 



30 



10' 



32-7 2(a) 



3-85 2 

 10-87 (c) 



1-255 2 

 0-123 1 



36-3 

 5-14 

 5-35 

 5-22 

 4-93 

 5-05 

 1-69 



3-25 10 

 3-34 3 

 2-81 1 



1-80 1 

 1-49 (d) 



4-71 3 

 4-06 (d) 

 6-76 3 

 3-84 3 

 3-93 (d) 



3-407 

 0-244 

 0-218 

 239 

 0-231 

 0-246 

 0-120 



0-2015 6 

 0-220 2 

 0-2389 3 

 0-1527 2 

 0-160 (/) 



0-531 2 



0-592 

 0-404 



7 



1-667 (b) 

 1-667 1 

 1-642 (/) 



1-399 

 1-401 

 1-401 

 1-402 

 1-397 

 1-405 

 1-341 



1-300 13 

 1-317 2 

 1-317 3 

 1-258 3 

 1-239 (/) 



1-306 3 

 1-26 (/) 

 1-316 3 

 1-250 4 

 1-22 (f) 



>7oxl0 4 



1-883 



5 



2-108 



3 



2-981 



M 



0-852 



12 



1-673 



5 



1-925 



6 



1-733 



31 



1-737 



2 



1 677 



3 



1-256 



2 



1-428 



12 



1-364 



3 



1-154 



1 



1-204 



2 



0-924 



(,i) 



0-949 



3 



0-943 



(d) 



1-036 



2 



0-940 



4 



0-855 



(d) 



"(a) The number given after each constant is the number of 

 values of which it is the mean. (6) The theoretical value is used 

 in preference to the one observed value 1 -63 of Behn and Geiger." 

 (c) Weber, see Sci. Abs. 313, 1919. (d) Eucken, he. cit. (e) 

 Rankine, Phil. Mag. 21, p. 45, 1911. (/) Kaye and Laby's 

 Tables, 2nd ed. All other values from Hercus and Laby, loc. cit. 



