Mr. J. N. Lockyer. On the 



[June 19, 



Remarks. 



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Brightness. 





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Prominences 



How many 

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Young. 





If visible. 



Yes 



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lening. 





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If visible. 



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Coincident 

 with 





Ihalen. 



Intensities. 



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p , p. p, 

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Wave-lengths 

 of lines. 



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