T VAN LOHUIZEN. Translation Series in Line Spectra. 
Proceedings Royal Acad. Se. Amsterdam. Vol. NV 
SYSTEM OF SERIES OF SODIUM. 
(One Component). 
All P series and P asymptotes are represented by ——————— ——— ——— 
aS A Fy 7 IN py eee ee = 
Wea 5 Ad = ” , nn 
ee ay on “i 7 " —————— 
All P series may be brought to coincidence by a Translation // Y (Translation series) _ 
ns 55 ma) , ” non ” INC > ) 
DE en, , > non " INC ” ) 
Ne sa . . no 7 INC . ) 
All P asymptotes may be found from the curve Y=Pz (e=1.2.._.) 
„Ss » en sn On On » Y=Ssi(rml2) 
„DD nn ow orn on TeDuld) = 
> iF , ono. » on » Y=Fa (z=12...) 
All the curves were drawn off the sume pattern curve. 
SBytel tity PJMlder8 Zim Leiden. 
