164 



REPORTS ON THE STATE OF SCIENCE. 



ZiR::oyivM.— continued. 



Arc Spectrum 



Wave-length 



Rowland 



and 

 Harrison 



419G-297 

 94-925 



94-163 



91-947 

 91-650 



80-834 



83-472 

 82-722 



79-964 



71-625 

 69-503 



66-509 



61-352 



56-383 



52-793 



51-123 

 49-443 



46-038 



40-161 



Exner 



and 



Hasehek 



4194-95 



87-69 



83-49 

 81-09 



66-58 



61-40 

 60-06 



56-40 



52-83 

 52-46 

 51-18 

 49-35 



Inten- 

 sity 

 and 

 Cha- 

 racter 



3 

 4 



2 



1 



2 



5 

 2 



4 

 5 



3n 

 3 



4 



2ii 



4 



8 



In 



Spark Spectrum 



Wave-length 



Exner 



and 



Hasehek 



4197-95 

 96-50 

 96-32 

 95-00 

 94-66 

 94-20 

 92-30 

 92-03 

 91-75 

 87-80 

 87-30 

 86-89 

 86-25 

 84-62 

 83-51 

 82-75 

 81-13 

 80-08 

 77-75 

 74-56 

 73-36 

 71-65 

 70-75 

 69-55 

 68-90 

 68-40 

 67-88 

 67-30 

 66-60 

 65-80 

 65-55 



63-6 



62-60 



61-48 



69-77 

 5910 

 57-93 

 56-49 

 55-30 

 53-96 

 52-87 



51-23 

 49-43 



47-53 



66-6 



61-4 



56-7 



53-8 

 52-9 



51-0 

 49-6 



66-51 

 63-98 

 61-45 



56-49 



52-89 



51-18 

 49-45 

 47-94 



Inten- 

 sity 

 and 

 Cha- 

 racter 



In 



3Ce? 



1 



5 

 1 

 2 



1 



2 



3 



6 



1 



6Cc? 



1 



1 



3 



In 



In 



8 



In 



1 



1 



3U? 



In 



2 



In 



In 



In 



In 



5 



In 



In 



In 



In 



1 



9 



1 

 1 

 1 

 8 

 1 

 1 

 3La? 



7 



14 



2 



1 



In 

 In 



1 i 

 2b 

 1 



Reduction to 

 Vacuum 



\ + 



1-15 



1 



A 



6-7 



Oscillation 



Frequency 



in Vacuo 



23814-4 

 22-9 

 23-8 

 31-4 

 33-1 

 35-8 

 46-5 

 48-3 

 49-9 

 72-6 

 75-0 

 77-6 

 81-0 

 90-3 

 96-9 



23901-0 

 10-4 

 16-8 

 29-6 

 47-9 

 54-8 

 64-7 

 69-8 

 76-9 

 80-4 

 83-3 

 86-3 

 89-6 

 93-9 

 98-3 

 99-7 



24008-8 

 11-0 

 16-7 

 23-5 

 31-4 

 32-9 

 37-0 

 43-7 

 52-3 

 58-9 

 66-7 

 73-2 

 75-4 

 82-9 

 93-1 



24101-7 

 03-9 

 12-4 

 16-9 

 28-0 

 46-7 

 64-1 I 



