242 



INDEX. 



Harvard Observatory, 174, 175, 

 191. 



Hasselberg, B., 148, 190. 



Heis, E., 179, 220. 



Heliometer, 153, 157. 



Helium stars, 174. 



Helmholtz, H., 61, 229. 



Hencke, K. L., 99. 



Henderson, T., 154, 155. 



Henry, Paul and Prosper, 100, 

 114, 210. 



Hercules, 167. 



Herculis (a), 182. 



Herculis (A), 26. 



Herschel, William, 1-42, 43, 60, 

 63, 65, 69, 74, 77, 85, 90, 99, 

 103, 109, 111, 112, 115, 123, 

 150, 162, 167, 176, 196, 197, 

 207, 214, 216, 218, 224, 227. 



Herschel, A., 144. 



Herschel, Caroline, 6, 8, 9, 12, 13, 

 14, 30, 35, 127, 198. 



Herschel, Sir J., 4, 17, 27, 30, 37, 

 50, 112, 113, 120, 130, 144, 

 167, 187, 188, 197, 198, 199, 

 200, 214, 215. 



Hind, J. R., 99, 129, 135, 180, 

 188. 



Hoek, 135. 



Holden, E. S., 191. 



Hough, G., 105. 



Houzeau, J. C., 220. 



Huggins, Lady, 172. 



Huggins, Sir W., 54, 57, 74, 95, 

 106, 114, 131, 136, 165, 170, 

 171, 172, 173, 189, 190, 191, 

 193, 195, 207, 208, 212, 231. 



Humboldt, A., 44, 139. 



Hussey, W. J., 116, 201. 



Innes, R., 188. 



Intra-Mercurial planet, 80, 81. 

 Italian spectroscopists, 54, 55. 



Janssen, P. J. C., 52, 53, 54, 57, 



59, 112, 209. 

 Juno, 19, 99, 101. 

 Jupiter, 20, 75, 97, 101-108, 112, 



114, 121, 122, 135, 144, 146. 



Juvisy Observatory, 164. 



Kaestner, 65, 124. 



Kaiser, F., 90. 



Kant, I., 34, 35, 101, 103. 



Kapteyn, J. C., 27, 158, 161, 162, 



168, 221, 222. 

 Keeler, J. E., 95, 114, 185, 208, 



211, 212, 213, 231. 

 Kelvin, Lord, 229. 

 Kempf, P., 181. 

 Kepler, J., 5, 35, 137. 

 Kirchoff, G. R., 61, 169, 172. 

 Kirkwood, D., 140, 230. 

 Klein, H. J., 73. 

 Klinkerfues, E., 142, 202. 

 Konkoly, N., 175. 

 Kiistner, F., 88. 



Lalande, 23, 152. 



Lambert, J. H., 34. 



Lament, J., 44. 



Langley, S. P., 77. 



Laplace, P. S., 20, 33, 34, 77, 109, 



148, 152, 195, 227, 228, 229. 

 Lassell, W., 112, 115, 117, 120. 

 Latitude, variation of, 88, 89. 

 Leipzig Observatory, 173. 

 Leonid meteors, 139, 140, 142. 

 Leonis (/3), 183. 

 Lescarbault, 80. 

 Le Verrier, U. J. J., 61, 80, 81, 



118, 119, 120, 142, 164. 

 Ley den Observatory, 91. 

 Librae (S), 180. 

 Lick Observatory, 93, 107, 166, 



168, 191, 213. 

 Light, extinction of, 40, 215, 216, 



224, 225. 



Lindsay, Lord, 157. 

 Linn^ 71, 72. 

 Lockyer, Sir J. N., 52, 53, 54, 55, 



58, 149, 174, 191, 193, 195, 



208, 209, 231, 232. 

 Lockyer, W. J. S., 210. 

 Loewy, M., 75. 

 Lohrmann, W. G., 68, 71. 

 Lohse, W. 0., 88, 105. 

 Loomis, 188. 



