Absorption System of Sulphur Dioxide. 519 



Table IV. — Series o£ Constant Difference in the Absorption 

 Band Group of SO 



Red Series. 



Bi 



ue Series. 



Miss Lowater's 



Series. 



173 -a 



o 3 





H3 r- 

 • -J 



5 







O CD 



2^ o 

 .2 S3 • 



§ g | 



.2 



3 * 



• Is 8 



3 Z O 



CO 



.2 



> 2 



g • 



cd — <a 



— ^ 



S4 03 «H 



OQ O ° ro 



l|l 







1 ? £ 



^ *'l *H 



CO 



X S3 



? •? I 



o. of 



o. of 



lines 

 serie 





O 



6 



,, 02 o> 



.-3 ^ 

 — ' » 



US 







6 





CD 3 



£3 5 S3 

 § SS-CS 



ft ft 



s 



ft 



£ 



£ 



ft 



ft 



3 



Central 





Central 













Series. 1 1 



223-23 



Series. 



11 



223-23 









1 7 



223-18 



1 



4 



223-25 



1 



8 



223-1 



2 8 



223-32 



2 



13 



223-24 



2 



14 



223-3 



3 8 



223-28 



3 



8 



223-27 



3 



13 



223-4 



4 9 



22323 



4 



5 



223-10 



4 



9 



223-5 



5 10 



22315 



5 



9 



223-22 



5 



9 



223-9 



6 8 



223 27 



6 



7 



223-28 



6 



13 



223.2 



7 7 



223-16 



7 



10 



223-28 



7 



10 



223-1 



8 11 



223-25 



8 



6 



223-25 



8 



10 



223-1 



9 6 



223-27 



9 



12 



223-24 



9 



10 



222-9 



10 10 



223-21 



10 



6 



223-26 



10 



8 



223-4 



11 8 



223-22 



11 



9 



223-21 



11 



12 



223-4 



12 8 



223 05 



12 



9 



223-30 



12 



8 



223-1 



13 7 



22319 



13 



6 



223-37 



13 



12 



2230 



14 7 



223-26 



14 



8 



223-36 



14 



13 



222-9 



15 10 



223-21 



15 



4 



223-14 



15 



15 



223-0 



16 5 



223-19 



16 



9 



223-28 



16 



12 



223-4 



17 6 



223-40 



17 



4 



22300 



17 



11 



223-5 



18 11 



223-36 



18 



8 



223-30 



18 



6 



223-4 



19 8 



223-18 



19 



6 



223*22 



19 



11 



223-1 



20 7 



223-12 



20 



3 



223-27 



20 



9 



223-0 



21 9 



223-21 



21 



7 



223-21 



21 



10 



223-0 



22 4 



22310 



22 



7 



223-25 



22 



12 



222-8 



23 10 



223-26 



23 



1 



? 



23 



14 



223-3 



24 7 



223-17 



24 



11 



223-28 



24 



17 



223-4 



25 9 



223-20 



25 



3 



223-40 



25 



12 



223-1 



26 6 



223-28 



26 



8 



223-18 



26 



13 



223-1 



27 8 



223-18 



27 



3 



223-29 



27 



14 



223-1 



28 5 



223-30 



28 



6 



22323 



28 



13 



223-0 



29 9 



22319 



29 



7 



223-30 



29 



14 



223-2 



30 9 



223-17 



30 



5 



222-94 



30 



12 



222-9 



31 7 



223-29 



31 



9 



223-16 



31 



13 



2230 



32 13 



223-24 



32 



7 



223-19 



32 



16 



223-0 



33 7 



223-24 



33 



6 



223-12 



33 



10 



223-3 



34 3 



223-25 



34 



8 



22327 



34 



10 



223-3 



35 8 



223-14 



35 



5 



223*17 



35 



14 



223-3 



36 4 



223-24 



36 



5 



223-14 



36 



16 



223-4 



37 7 



223 19 



37 



4 



223-30 



37 



14 



223-2 



38 5 



223-24 









38 



14 



223-1 



39 5 



223-32 









39 



9 



223-9 



40 8 



223*27 









40 



16 



223-6 



4L 2 



223-45 









41 



16 



223-7 



42 4 



22317 









42 



15 



223-8 



43 6 



223-23 









43 



16 



223-8 



44 5 



22316 









44 



15 



223-7 













Short Series 5 



223-7 



Mean 



223-23 



Mean 



223-23 



Mean 



223-26 



The mean values of the wave-number differences in the various series were 

 calculated from the observed lines in the series and are therefore com- 

 parable with those given by Miss Lowater. 



