LITERATURE OF THE SPECTROSCOPE. 137 



Spectrum of the aurora and of the zodiacal light (with a list of author- 

 ities on the subject, included here). 

 Capron (J. 11.). Nature, 7, 182-186. 



The aurora spectrum. 



Cupron (J. II.). Nature, 7, 201. 



The aurora and its spectrum. 



Capron (J. R.). Nature, 25, 53; Jour, de Phys., (2) 2, 97 (Abs.). 



The aurora. 



Capron (J. R.). Nature, 27, 83-4, 139, 198. 



Magnetic storm, aurora and sun-spot. 



Christie (W. H. M.). Nature, 27, 83. 



Spectrum of the Aurora. 



Church (A. IT.). Chem. News, 22, 225. 



A line in the green-blue at or near F; at 485; assumed to be 486 F 

 hydrogen. 



Clark (Alvan, Jr.). Nature, 7, 182. 



A line in the green near E (corona line?); at 532; assumed to be 531*6 

 (corona line). 



Clark (Alvan, Jr.). Nature, 7, 182. 



A line in the yellow-green between D aud E (principal auroral line). 

 Clark (Alvan, Jr.). Nature, 7. 182. 



Line in the indigo at or near G; at 435; supposed to be G hydrogen. 

 Clark (Alvan, Jr.). Nature, 7, 183. 



Observations of the aurora on Aug. 12 and 13, 1880 

 Copehuul (11.). Nature, 22, 510. 



Spectre de l'aurore boreale du 4 fevrier. 



Cornu (A.). Compte3 Pvendus, 74, 390. 



Sur l'intensite calorifique de la radiation solaire et son absorption par 

 l'atmosphere terrestre. 



Crova (A.). Comptes Rendus, 81, 1205-7. 



The aurora. 



Eiger (T. G.). Nature, 3, 6-7 ; 7, 182 ; 27, 85-6. 



Spectrum of the aurora. 



Ellery (R. J.). Nature, 4, 280. 



