"WOOD. — SPECTRA OF SODIUM VAPOR. 



259 



First Series. 



A. A differences. 



5119.34 



5079.78 • • • 



504().Go • • • 



5001.57 • • • 



4962.85 • • • 



4924.32 • • • 



39.56 

 39.13 

 39.08 

 38.67 

 38.52 



Second Series. 



A. A differences. 



5165.85 



5126.54 • • • 



5087.31 • • • 



5048.49 • • • 

 .... J 7^<Lt = 38.83 



4970.85 

 4932.64 • • • 

 4894.58 • • • 



.... ^51^1- = 37.57 

 4819.43 

 ? 4782.89 • • • 



39.31 

 39.23 



38.82 



38.21 

 38.06 



36.54 



• • ■ • u_|.^ = 37.63 



4670 



5211 

 5172 

 5133 

 5094 



4979, 



4903, 



Third Series. 



A differences. 



71 



82 • • • 



73 • • • 



,78 • • • 



38.89 

 39.09 

 38.95 



4865 



4752 

 4715 



LL.|.j^= 38.45 



34 



. JJ^aiL^ 37.98 



38 



59 • • • 



. u_|.^^ = 37.8'5 

 04 

 63 • • • 



37.79 



36.41 



FoDKTii Series. 

 A. A differences. 



5219.00 

 5179.71 • • • 

 5140.71 • • • 



39.29 

 39.00 



• • • • LL5.o^^ 3:3 38.35 

 5025.66 



• • • • LL|.jj^ = 37,85 



4912.10 



.... J^«-L = 37.30 

 4837.49 



• • • • UL|.jjj =36.68 



4727.52 



. . . 34.98 



38.64 

 39.20 



38.00 



? 4692.54 



Fifth Series. 



A. A differences. 



5225.34 



5186.70 • ■ 

 5147.50 • ' 



.... -V- = 38.00 

 5071.50 

 5033.54 



.... ^^2-9-^ = 37.46 

 4958.62 



.... jji^^U:^ 37.40 



4883.81 



.... ^-3.5^5-:= 36.82 



4810.16 



.... -X_U(L(L:zz 35.83 



4738.5 



Extra Lines. 



5096.00 

 6052.83 

 5049.56 

 5003.12 

 4964.39 

 4967.10 



