1918.] The Fifth Indian Science Congress. CXxXi 
spectra of H and N showed little or no Stark effect. Later it 
red or toward the violet. This is in agreement with Dufour’s 
measurement of the Zeeman effect. 
Dissymmetries. 
The position and intensities of the components of the 
normal triplet can be deduced very easily from the simple 
electronic theory of Lorentz. 
eeman, Winawar, Risco, Koerner and others have ob- 
served several dissymmetries both in place as well as in intensity 
nd in emission as well as in absorption lines. Some of them 
genuine dissymmetries which present many serious difficulties 
The observed facts point either to the complicated struc- 
ture of the atom itself or to the complexity of structure of 
°onfigurations of electrons circulating round a nucleus. 
Complex Magnetic Resolutions. 
It was found very soon after the discovery of the Zeeman 
effect that beside the normal triplet, there exist several com- 
Plicated types of magnetic resolution and that the normal triplet 
s Tather an exception than the rule. Lines were shown to split 
"P into 4, 5, 6, 9 or even a score of components. 
The value of e/m, deduced from the normal triplet by 
b uming Lorentz’s theory, agreed well with the value found 
sd independent methods, giving thereby the strongest support 
the electronic origin of spectra. But the complex types 
a confusing results and this chaotic state was reduced to 
es ree by the researches of a host of investigators led by Runge 
P aschen, and it was shown that even the more complex 
found sited certain relatively simple features. Preston 
nd that all the lines of a given series and of homologous series 
