— 17,2 



— 24,4 - 32,6 



— 39.5 



44.4 



46,2 |— 43,6 - 35,5 



20,4 



+ 5,1 



+ 38,7 



In fig. I is drawn the curve showing the variation of J with the 

 atomic number. The observed points are also marked ofif. Tor the sake 

 of comparison two other curves are drawn, that of Debye (Qi = ^,%= i) 

 and the one corresponding to preservation of energy [q^ — 4, % ^^ 3). 

 (See Paper I. p. 308). 



+ VÖ 



+ 3Ô 



+ 20 



+ /0 



<3 



- /O ■ 



-20 



-30- 



- •</<7-- 



-ÔO 



J Momentum main tamed ^^ -J» ci /) ''ûeôye ) 



-TV- 



Fig. 



