On the Arc Spectrum of Vanadium. 



200 



1 



Hasselberg. 



Kensington. 



Hasselberg' s 

 imputed 

 origin. 



Remarks. 



! a - 



Int. 



A. 



Int. 



3975 -51 



1 



3975 -48 



1-2 







Ba, Co 



1 





4013-67 



1 



4013 -69 



<1 



Ti 



There is no evidence that 



4020-69 



1 



4020-73 



1 



Fe 



i 



the lines in the Kensing- 



4123-35 



2 



4123 -30 



3 



Ti, Mn 



y 

 i 



ton photograph are due 



! 4315-00 



1-2 



4315-02 



2 



Ti 



i 



to any of these metals. 



4618-96 



1 



4619-10 



1 



Fe 



j 





The following lines occur in the photograph, but have been left out 

 of the Kensington record as they are considered to be undoubtedly due 

 to other metals. 



Lines of other Metals which occur in the Kensington Vanadium 



Spectrum. 



A. 



Int. in 

 Y. 



Origin. 



A. 



Int. in 

 V. 



Origin. 



3933 -83 



5 



Ca 



4215-66 



<1 



Sr 



44-16 



1-2 



Al 



26 -91 



6 



Ca 



61 -68 



2 



Al • 



50-93 



<1 



Fe 



68 -63 



5 



Ca 



54 -49 



2 



Cr 



81 -87 



4-5 



Ag 



74-91 



2 



Cr 



95*46 



2-3 



Co 



89-87 



1 



Cr 



4030-92 



3-4 



Mn 



4302-68 



<1 



Ca 



33 -22 



3 



Mn 



07-96 



1 



Fe 



34-64 



2-3 



Mn 



11 -21 



1-2 



Ag 



45 -90 



2 



Fe 



25 -92 



1-2 



Fe 



55 -44 



10 



Ag 



83-70 



2 



Fe 



57 -97 



3 



Pb 



4404 -70 



<1 



Fe 



63 -63 



1-2 



Fe 



76-29 



6 



Ag 



4121 -48 



2-3 



Co 



4668 -70 



7 



Ag 



4212-10 



10 



A S 







All these lines are the very strongest in the spectra to which they 

 respectively belong, and although in the vanadium spectrum there are 

 other lines apparently identical in position with some of the weaker 

 lines of Fe, Mn, Co, and Cr, a comparison of their relative intensities 

 in the two spectra shows that they cannot reasonably be ascribed to the 

 presence of such metals as impurities in the vanadium, but must be 

 accepted as genuine lines of both metals, so far as the dispersion 

 employed enables us to form an opinion. These are given in order of 

 wave-length in the following table : — 



