( 828 ) 



ol)l;uiiiii,u' a ,irood tMHisiancv of (38). Tlie results arc coutained in the 

 lollowiii^- tables, corre^poiKlin<!: I(» the tables 111 and 1\' in Kaif.mann's 

 paper. 



III. I, = o.o:h3. 



The constancy of k\ is seen to come out no less satisfactory than 

 that of l\, the more so as in each case the value of s has been 

 determined by means of only two measurements. The coefficient has 

 been so chosen that for these two observations, which were in Table 

 III the first and the last but one, and in Table IV the tirst and the 

 last, the values of k\ should be proportional to those of k.,. 



I shall next consider two series from a later publication by Kalfman.\^\ 

 which lia\e been calcidated by Runge') by means of the method of 



1) Kaufmanx, Cloit. Xarlir. Math. pliy?. Kl., 1903, p. 90. 

 ') Ru.sGE, ibidem, p. 3"26. 



