396 Profs. G. D. Liveing and J. Dewar. On the 



Tables of the approximate Wave-lengths oj Xenon and Krypton Rays. 



Rays observed only with a Leyden jar in circuit have an * prefixed, 

 those observed only when no Leyden jar was in circuit have a f pre- 

 fixed. 



The intensities indicated are approximately those of the rays when 

 a jar is in circuit, except in the case of the two rays to which a f is 

 prefixed, which are not seen when a jar is in circuit. Rays which are 

 equally intense whether a jar is in circuit or not have a || prefixed to 

 the number indicating their intensities ; those which are less intense 

 with a jar than without have a < prefixed to the number expressing 

 their intensities. The rest are, in general, decidedly more intense with 

 a jar than without. 



Xenon Rays. 



Wave- 



Inten- 



Wave- 



Inten- 



Wave- 



Inten- 



Wave- 



Inten- 



lengths. 



sity. 



lengths. 



sity. 



lengths. 



sity. 



lengths. 



sity. 



*6596 



4 



5532 



4 



4883 



— 



4471 



2 



# 14 



1 



5473 



3 



76 



4 



62 



10 



6472 



P 



61 



3 



44 



10 



49 



6 



6358 



1 



* 51 



1 



30 



I'll 



40 



1 



45 



3 



39 



3 



23 



3 



34 



2 



20 



111 ! 



20 



10 



* 18 



3 



15 



8 



02 



1 



5372 



6 



07 



<1 



07 



3 



6278 



3 



* 68 



1 



4793 



1 



4396 



4 



71 



3 



39 



6 



87 



2 



93 



4 



6183 



111 



13 



1 



79 



2 



86 



3 



81 



111 



09 



1 



69 



2 



75 



4 



66 



P 



5292 



10 



40 



1 



69 



4 



6097 



6 



62 



2 



34 



<1 



56 



1 



51 



6 



60 



2 



31 



1 



43 



1 



36 



5 



40 





23' 



1 



37 



3 



5976 



6 



27 



1 



14 



1 



31 



10 



72 





02 



1 



4698 



113 



22 



3 



46 



2 



5192 



6 



46771 



band of 



11 



3 



35 



<1 



89 



3 



to \ 



close 



4297 



3 



06 



1 



85 



3 



4668 J 



lines 



86 



3 



5895 



111 



79 



3 



52 



4 



72 



3 



76 



111 



26 



3 



34 



2 



69 



3 



56 



P 



23 



1 



24 



<2 



63 



2 



25 



2 



07 



3 



16 



3 



51 



3 



17 





5080 



2 



02 



8 



45 



10 



5777 



4 



68 



1 5 



4592 



3 



39 



8 



59 



4 



52 



1 1 



86 



115 



27 



1 



51 



5 



45 



6 



77 



3 



23 



5 



27 



4 



25 



<1 



56 



2 



15 



10 



20 



4 



4988 



4 



45 



3 



14 



6 



00 



6 



72 



2 



41 



3 



09 



8 



5668 



4 



f 24 



f4 



35 



2 



04 



111 



60 



1 



* 22 



8 



25 



115 



01 



1 



17 





t 17 



t4 



22 



1 



4198 



1 



09 



1 



4890 



3 



00 



111 



93 



116 



5583 



1 



87 





4486 



1 



81 



10 



73 



1 



84 



4 



81 



5 



76 



1 



