( 710 ) 



!) In each spectrum the intensity of the highest maximum is indicated by 10. 

 The letter s following an intensity figure means, that the band is rather sharp. 



-) The relative intensity of these bands varies much with the place in the flame. 



:ï ) The addition "etc." behind an index of refraction indicates, that the band marks 

 the beginning of an extensive region of strong absorption. 



