INDEX OF AUTHORS. 389 



Sherman. Astronomical, 69 ; Comets, 79 ; Fixed Stars, 80. 



Sieben. Density, 208 ; Dispersion, 215 ; Heat, 254. 



Silbermann (J.). Meteors, 83 ; Aurora, 140. 



Sileiman (J. M.). Apparatus, 12; Iron, 269. , 



Simmler (R. Th.). Book, 10; Apparatus, 19 ; Analysis, 47; Borax, 

 146 ; Copper, 202 ; Electric, 224 ; Flame, 237 ; Mineral Waters, 

 297. 



Sirks (J. L.). Selenium, 332. 



Smith (A. P.). Flame, 238 ; Salt, 328. 



Smith (Lawrence). Didymium, 210 ; Erbium, 229; Mosandrum, 298. 



Smith (C. Mitchie). Meteorological, 295, 296. 



Smyth (C. Piazzi). Book, 10; Apparatus, 20, 38 ; Analysis, 47 ; As- 

 tronomical in general, 69; Solar in general, 97 ; B Lines in the 

 Solar Sp., 101 ; Heat in the Solar Sp., 113; Red End of the Solar 

 Sp., 124; Solar Wave-Lengths, 132; Aurora, 140; Carbon, 154; 

 Cyanogen, 170; Hydrocarbon, 175; Color, 198; Dispersion, 215; 

 Flame, 238 ; Meteorological, 296 ; Oxygen, 310 ; Wave-Lenghts, 

 356. 



Sohnke (L.). Heat, 254. 



Sokoloff (A.). Apparatus, 19. 



Somerville (Mrs.). Chemical Effects of the Solar Sp., 102. 



Sonrel. Photography of the Solar Sp., 117; Sun-Spots, 127. 



Sorby (H. C). Apparatus, 22, 28 ; Qualitative Analysis, 49 ; Carbon 

 Compounds, 159; Aphides, 163; Blood, 166; Bonellia Viridis, 

 167; Hemoglobin, 174; Leaves, 176; Spongilla Fluviatilis, 183; 

 Color, 199 ; Fluorescence, 244 ; Jargonium, 270 ; Uranium, 347 ; 

 Zirconium, 361. 



Soret (C). Apparatus, 30; Aluminium, 63; Alum, 162; Dispersion, 

 215 ; Fluorescence, 245. 



Soret (J. L.). Apparatus, 17; Absorption, 58, 59 ; Heat in the Solar 

 Sp., 113; Blood, 166; Color, 199; Crystals, 203 ; Didymium, 210 

 Diffraction, 211 ; Dispersion, 215; Flame, 238; Gadolinite, 247 

 Liquids, 278; Metals, 296; Nitrogen, 303 ; Polarized Light, 318 

 Samarskite, 330; Ultra- Violet, 349,350; Water Sp., 352 ; Yt 

 trium, 359. 



Spee. Diffraction, 211 ; Helium, 255. 



Spiller (J.). Phosphorescence, 314. 



Sporer. Solar Protuberances, 121. 



Spottiswoode (W.). Color, 199. 



