Band and Line Spectra of the same Metallic Elements. 115 
Olmsted. 1906.* 
N r 
(4979) wainly str 
airly strong. ; 
Bands well defined, sharp on both | 4 4565-4 
edges. Common to all haloid ¢ Fairly strong. Le 
salts of strontium. | Dee 545°82 
L oe Fairly strong. 524-5 
( 43 zi 
493 § Strong. 491°4 
416 
403 3 RONG 400°38 
394 
| 386 Faint. 384-0 
Bands degraded towards the red. 377 
Common to all haloid salts of 4 314 | Strong. 362°] 
strontium. 307 Str 
BAB \j PMEONS 341-3 
3906 
304 Very faint 303°] 
a 97 
( iN Very strong 281-4 
f 4033 401536 
011 Very strong. 019-00 
003 IRE Fs 008-86 
BOG |} VOY MBORS 3986-02 
Bands degraded towards the red. } 979 ore 
Strontium chloride bands. 958 Very strong. 961°85 
Bee Very strong. 936-62 
8D )) cen ( 931-2 
L917 SUrCnE: (918-9 
(ole; Fai Haass 
j aint : 
Metal bands. J Te | BOO 
l 875 Very faint 
| ae Very faint. Agee 
F 2 779° 
Diffuse broad bands. Metal bands. < ie 5 Very faint. ioe 
747 743°5 
L739 a Very faint. { 795.5 
Lecocq de Boisbaudran in ‘“ Spectres lumineux” gives beautiful drawings of 
the chloride spectra with maps of the wave-lengths of the bands, and a full 
description of them in the text. 
* Zeitschrift f. wissenschaftliche Photographie, vol. iv., pp. 255-333. 1906. 
