OX TIIK DIFFUSION oF LIQUIDS. 



Z> = 1.34814 

 ^=0.00407. 



The curves ;i-e in plate I. are the n-x curves with x as the ordi- 

 nate and n as the obscissa ; and those in plate II, are the curves ob- 

 tained by projecting them supposed to be wrapped round a cylinder on 

 the meridian plate perpendicular to the initial meridian, and are used 

 in calculating B, and h l Table IV and the line a in plate V show the 



~Y~ j They show how nearly log 10 



relation between t and log l0 (— j^—j They show how nearly 



— j- J is proportional to t, as is required by Fick's law, and that fact 

 may be looked upon as a proof that at least in NaCl, h is independent 



of the concentration. 



Table IV. 



A- = 0.841 



( day ) 



day 

 Mean teinp=10\3 C 



=9.73x10" 



6 /cnr\ 

 \ sec / 



