64 



Prof. H. A. Rowland on a 



Elements. 



Mn .. 

 Mn .. 

 Cd .. 



M- 



Ti/.. 



Zn .. 

 Mn .. 

 Fe? .. 

 Fe .. 

 FH .. 

 Fe .. 

 Ti* .. 

 Yt* .. 

 Crl 

 Fe| 

 Pb .. 

 Fe .. 

 Fet ... 

 Fe .., 

 Fe ... 

 BaJ ... 

 Fe ... 

 Fe ... 

 Neb** 

 Til 

 Fe] 

 ? 



Fe 



m 



? 



Ti 



Fe 



Ti-La||... 



Pb 



Fe 



Fef 



Ti] ••• 



Fe| ... 



Neb**... 

 Mgb'dtt. 

 (Ni)Til 



Ti 



Til ... 

 Ni) ... 

 Ca 



In Arc. 



Inten- 

 sity. 



■i} 



"3 



5 

 ? 



10 



3 



1010 



?io 

 5 



7 

 6 

 3 

 3 



Appear- 

 ance. 



EN 



E 



In Sun. 



Inten- Appear- 

 sity. ance, 



4 



5 



15 



7 



1) 



I) 



d? 



d? 

 cl 



Kind 



of 



Stand 



ard. 



O" 



M©' 



M 



Weight. 



In In 



Arc. j Sun 



Oi 





3 



MO" 



1 



1 



MQ' 



1 



12 



0" 



... 



n 



0" 





14 



0' 





5 



0" 





11 



0' 





11 



0' 





11 



0" 





14 



M 



1 





0" 





4 



MO" 



i 



7 



0" 





13 



0" 





12 



MO 



i 



10 



MO, 





3 



M0, 





3 



0" 





10 



0" 





8 









5 







1 



10 



O" 



... 



7 



MO 





8 



M 



5 





0' 





10 



0" 





8 



O" 





10 



m" 



"3 



10 



MQ' 





10 



0' 





8 



0' 





8 



M 



1 



2 



1 



1 



Wave- 

 length 

 in Arc. 



4783-607 

 4800-097 



Wave- 

 length 

 in Sun. 



4905-634 

 4920-676 



4754-226 

 4783-601 



4805-253 



4810-725 4810-723 

 4823-715 4823-697 

 4824-325 

 4859934 

 4861-496 

 4890-945 

 4900-098 

 4900-306 



4903-488 



4919-183 

 4920-682 

 4924-109 

 4924-955 

 4934-247 

 4957-482 

 4957-786 



4973-274 



4978-782 



4980-362 



4981915 

 4994-316 

 4999-693 



5005-904 

 5006-303 



5007-431 



4934-237 

 4959-02 



4981-893 



4999-668 

 5005-634 



5007-05 

 5007-473 



5014-412 5( 



5020-210 

 5036-113 



3041-867 5041-795 



* A Ba line comes between these and does not coincide with either. 

 t Shaded, and has a faint line towards the red. 

 J A very difficult double with a fine line towards the violet. (J.) 

 § There is a faint line towards the red. 

 || Ti line was measured. 



^[ There is a faint side line towards the violet. 



** Values determined by J. E. Keeler from his measurements at the Lick 

 Observatory using the values of the Pb, Fe, and Mg lines given in this table. 

 tt Commencement of the head of Mg band. 



