the Elementary Law of Hydrodiffusion. 



533 





s = 



T = 





s = 



T = 



A log = 





h m 





o 



h m 





o 







12 



170-3 



18-4 



12 30 



141-9 



184 



0-07923 



) 



2 



168-3 





32 



140-3 





0-07902 



1 



4 



166-4 





34 



138-7 





0-07907 



I 



6 



164-5 





36 



1371 





0-07913 





8 



1625 





38 



135-5 





0-07890 





12 10 



160-5 



18-4 



12 40 



133-9 



183 



0-07870 





12 



158-5 





42 



132-3 





0-07847 





14 



156-6 





44 



430-7 





007851 



,0-07870 



16 



154-6 





46 



1290 





007862 





18 



1527 





48 



1274 





0-07867 





12 20 



150-9 



18-4 



12 50 



1260 



18-3 



007832 





22 



1490 





52 



1245 





0-07802 





24 



147-3 





54 



1230 





0-07829 





26 



145-5 





56 



1215 





0-07828 





28 



143-6 





58 



119-9 





0-07933 



, 



1 



118-4 



18-3 



I 30 



98-8 



18-4 



007859 



^ 



2 



117-1 





32 



977 





0-07867 





4 



115-8 





34 



965 





007918 





6 



114-5 





36 



95 4 





007926 





8 



1131 





38 



94-3 





007895 





I 10 



111-8 



18-3 



1 40 



93-4 





007809 





12 



110-4 





42 



921 





0-07871 





14 



1091 





44 



90-9 





007926 



,0-07874 



16 



1077 





46 



89-8 





0-07894 





18 



106-5 





48 



89-0 





007796 





1 20 



105-2 



18-4 



1 50 



87-8 



18 5 



007853 





22 



103-8 





52 



867 





07816 





24 



102-6 





54 



35-5 





007918 





26 



101-3 





56 



84-4 





0-07927 





28 



1000 





58 



83-5 





007831 



; 



0-07872x2-303: 



We get from the general mean value, 0*07 872, in conse- 

 quence of the relation 



"VO 7 ^/ *48' 

 the value 



£ = 0-2404 [ CG ^ im ' ] for the temperature 18°'4. 



Influence of Temperature upon the Quantity k of Diffu- 

 sion. — From the observations made according to the first 

 method of experiment, it is evident that the value of the 

 quantity k of diffusion increases considerably with rising- 

 temperature. To establish this influence I have made twelve 

 series of experiments, at three different constant temperatures, 

 according to the second method, in exactly the same manner 

 and with exactly the same range as those just now communi- 

 cated in detail. The found course of the diffusion was as 

 perfectly regular in each of these twelve series as in the first. 

 I will, on this account, omit the long series of numbers, and 

 give only the final results : — 



