INDEX OF AUTHORS. 391 



Talbot (H. Fox). Analysis, 48 ; Flame, 238 ; Lithium, 280. 



Tarry (H.). History, 7; Solar Storms, 124; Aurora, 141; Meteor- 

 ological, 296. 



Tennant (J. F.). Eclipses, 110. 



Terquem et Trannin. Liquids, 278 ; Refraction, 326. 



Thalen (Rob.). History, 7; Book, 10; Analysis, 84; Solar in general, 

 98; Didymium, 210 ; Erbium, 229; Iodine, 267; Iron, 269; Lan- 

 thanum, 270 ; Limits of the Sp., 273 ; Maps, 288 ; Metals, 294 ; 

 Samarium, 329 ; Scandium, 331 ; Thulium, 345 ; Wave-Lengths, 

 356 ; Ytterbium, 358 ; Yttrium, 359. 



Thenard (P.). Analysis, 48; Heat in the Solar Sp., 112. 



Thierry (M. de). Apparatus, 11, 39. 



Thollon (L.). Apparatus, 12, 14, 28, 35, 37; Comets, 74, 77, 78; 

 Venus, 88 ; Solar in general, 98 ; B Lines in the Solar Sp., 101 ; 

 D Lines in the Solar Sp., 105; Eclipses, 110; Solar Protuberances, 

 122; Solar Storms, 124; Telluric Solar Sp., 129; Carbon Com- 

 pounds, 159; D Lines, 204; Dispersion, 215 ; Maps, 288; Sodium, 

 339; Wave-Lengths, 356. 



Thompson (C. M.). Didymium, 210. 



Thorner (W.). Chinon, 168. 



Thudichum (J. L. W.). Bile, 165 ; Hematine, 174 ; Luther'ine, 176 ; 

 Potassium, 319 ; Uranium, 347. 



Tilden (W. A.). Hydrocarbon, 175. 



Timiriasef. Analysis, 48 ; Solar in general, 98 ; Carbonic Acid, 180 ; 

 Energy in the Sp., 227. 



Tisserand (F.). Sun-Spots, 128. 



Tommasi (D.). Electric, 224; Silver, 336. 



Trannin (H.). Density, 208 ; Wave-Lengths, 356. 



Tremeschini. Sun-Spots, 128. 



Trepied (C). Comets, 79 ; Eclipses, 110. 



Tresca. Aurora, 141. 



Troost and Hautefeuille. Borax, 146; Carbon, 154; Silicium, 333 ; 

 Titanium, 346 ; Zirconium, 361. 



Trouvelot (E. L.). Absorption, 59 ; Solar in general, 98 ; Solar Ab- 

 sorption, 100; Solar Atmosphere, 101; Protuberances, 122; Sun- 

 Spots, 128. 



Trowbridge (J.). Analysis, 48. 



Truciiot (P.). Lithium, 280 ; Mineral Waters, 297. 



Tschirch (A.). Apparatus, 23 ; Chlorophyll, 194. 



