[MCLENNAN- young-ireton] ULTRA-VIOLET SPECTRA 



69 



The wave lengths of the lines and their relative intensities are 

 given in Table I, together with lines recorded by other observers in 

 the region below A = 2026 A.U. In reaching these values, a great 

 many plates were taken and the best measured with a Hilger com- 

 parator. 



Series Relations 



In the present investigation the series of single lines given by 

 the formula v=(l-5,S) — (m,P). 



m= 2 3 4 5 6 7 



A= 2853-22 2025-08 1828-1 1748-09 1707-3 1683-64 

 has been verified for the values m = 3, 4, 5, 6. 



Lorenser' has calculated the wavelengths of the different mem- 

 bers of the series v = (1 • 5,S) — (m,p2) to be 



• Lorenser, Mang. Diss. Tubingen, 1913. 



