Gases of Atmospheric Air, and their Spectra. 



215 



Wave-lengths of rays of unknown origin observed in the 

 spectrum of one tube containing xenon but not present in the 

 spectrum of other tubes : — 



Wave- 1 T t . 

 length. ; Intensity. 



Wave- 

 length. 



Intensity. 



Wave- 

 length. 



Intensity. 



Wave- 

 length. 



3741 



3684 

 3573 



Intensity. 



4589 - 



4071 1 



67 i 1 



4063 



11 



3998 



1 

 1 



3890 



72 



3797 



1 



5 



4 



10 



2 



Krypton Rays. 



Wave- 

 length. 



Intensity. 



8 



Wave- 

 length. 



Intensity. 



Wave- 

 length. 



Intensity. 



Wave- 

 length. 



Intensity. 



7600 



5186 



1 



4387 



3 



3859 



1 



4:7587 



2 



72 



1 



76 



3 



58 



1 



6771 



1 



66 



5 



63 



2 



47 



1 



6578 



1 



43 



4 



56 



12 



44 



2 



42 



3 



26 



6 



23 



2 



42 



1 



11 



2 



5087 



3 



20 



118 



39 



1 



6487 



3 



78 



1 



19 



II 3 



37 



2 



58 



<1 



73 



2 



18 



3 



17 



2 



51 



3 



57 



3 



01 



7 



06 



2 



20 



<4 



34 



1 



4293 



10 



05 



3 



6305 



3 



23 



4 



83 



113 



3784 



10 



6170 



2 



14 



112 



74 



II 4 



79 



8 



6095 



1 



4980 



1 



69 



3 



72 



4 



82 



1 



60 



1 



60 



1 



59 



2 



56 



2 



46 



1 



56 



1 



55 



6 



21 



1 



03 



2 



51 



5 



46 



6 



11 



2 



4847 



2 



37 



4 



42 



6 



5992 



3 



45 



2 



4185 



3 



36 



3 



5873 



1 



* 33 



5 



72 



1 



34 



4 



71 



<10 



26 



3 



45 



8 



22 



5 



5771 



2 



12 



3 



40 



2 



19 



10 



53 



2 



4766 



10 



4119 



3 



15 



1 



5690 



5 



63 



3 



09 



6 



3691 



1 



82 



5 



39 



10 



4099 



8 



87 



5 



50 



1 



4694 



3 



89 



8 



81 



7 



32 



2 



80 



5 



65 



7 



70 



7 



5571 



<10 



59 



8 



58 



6 



67 



1 



63 



3 



50 



1 



45 



4 



64 



3 



53 



1 



35 



6 



38 



2 



61 



3 



44 



1 



20 



8 



08 



2 



54 



10 



23 



2 



15 



6 



05 



1 



49 



3 



06 



2 



10 



3 



3997 



3 



38 



4 



00 



2 



4598 



1 



94 



6 



32 



10 



5483 



1 



93 



2 



88 



2 



24 



1 



46 



2 



83 



4 



65 



1 



08 



6 



29 



1 



77 



8 



55 



2 



00 



6 



24 



1 



25 



3 



39 



1 



3590 



3 



03 



1 



05 



112 



28 



3 



74 



X 



5319 



1 



4490 



2 



21 



8 



54 



2 



05 



1 



75 



6 



18 



2 



45 



6 



5278 



1 



64 



|| 3 pair 



13 



6 



03 



2 



29 



1 



54 



111 



07 



6 



3489 



2 



18 



1 



37 



6 



01 



1 



70 



1 



15 



1 



32 



6 



3896 



3 



60 



3 



* 09 



5 



23 



2 



76 



7 







03 



1 



00 



1 



62 



1 







X This is taken from Runge's number for the wave-leagth omitting the frac- 

 tion. 



