244 



INDEX. 



136, 158, 160, 161, 172, 175, 



192, 193, 194, 203, 208, 209, 



210, 211, 212. 

 Photometry, 176, 177. 

 Piazzi, G., 19, 20, 98, 150. 

 Pickering, E. C., 174, 175, 176, 



177, 181, 182, 183, 185, 193, 



194, 203, 204, 220, 221. 

 Pickering, W. H., 75, 76, 81, 91, 



92, 93, 107, 113, 209. 

 Plana, G., 78, 79. 

 Pleiades, 124, 210, 217. 

 Pogson, N. R., 142, 180. 

 Pole Star, 205. 

 Pollux, 165, 170. 

 Pons, J. L., 127. 

 Pont^coulant, 79. 

 Potsdam Observatory, 46, 173, 



176. 



Pritchard, C., 158, 177. 

 Proctor, R. A., 4, 20, 38, 41, 90, 



91, 104, 148, 163, 164, 218, 



219, 220, 231. 

 Procyon (a Canis Minor is), 151, 



203. 

 Prominences, solar, 52, 53, 55, 



64. 



Puiseux, P., 75. 

 Pulkowa Observatory, 200. 



Quetelet, A., 139. 



Radiant points, meteoric, 139, 



144, 145, 146. 

 Ranyard, A. C., 106, 146. 

 Red spot on Jupiter, 105, 106. 

 Regulus (o Leonis), 164, 165. 

 Relative parallax, 157. 

 Roseau, Photospherique, 59. 

 Resisting medium, 128. 

 Respighi, L., 55. 

 Reversing layer, 56, 57. 

 Ricco, A., 87, 105. 

 Rigel (ft Orionis), 165, 209. 

 Ritchey, G., 194. 

 Roberts, A. W., 181. 

 Roberts, L, 209, 210. 

 Roche, E., 109. 

 Roman College Observatory, 85. 



Rosse, third Earl of, 141, 156, 



207, 208, 218. 

 Rosse, fourth Earl of, 77. 

 Rotation of the Sun, 58, 59 ; of 



the planets, 82, 83, 84, 85, 86, 



87, 104, 111, 112. 

 Rowland, H. A., 52. 

 Rutherfurd, L. M., 75, 169. 



Sabine, Sir E., 44. 



Safford, T. H., 202. 



Santini, G., 159. 



Savary, R, 30, 199. 



Satellites, 96, 107, 108, 112, 113, 



115, 120, 121, 236. 

 Saturn, 20, 21, 22, 97, 103, 108- 



113, 121, 135. 



Schaeberle, J. M., 93, 107, 191, 



203. 



Scheiner, C., 44. 

 Scheiner, J., 166, 174, 176. 

 Schiaparelli, G. V., 82, 83, 84, 



85, 86, 87, 91, 92, 114, 141, 

 143, 149, 201, 220, 224, 231, 

 235 



Schjellerup, H., 180. 



Schmidt, J. F. J., 69, 70, 71, 72, 



73, 104, 179, 180, 189. 

 Schonfeld, E., 160, 179, 180, 188, 



189. 

 Schroter, J. H., 16, 65, 66, 67, 



68, 69, 70, 74, 81, 82, 84, 85, 



86, 87, 97, 99, 153. 

 Schwabe, S. H., 18, 43, 44, 46, 



55. 



Schwassman, A., 100. 

 Secchi, A., 52, 54, 55, 60, 72, 90, 



114, 141, 170, 171, 173. 

 Secchi's types of stellar spectra, 



170, 171, 173, 174, 175, 189, 



232. 



See, T. J. J., 201, 202, 236. 

 Seeliger, H., 110, 195, 196, 202, 



206, 224, 225. 

 Serviss, G. P., 158. 

 Sirius (a Canis Majoris), 151, 170, 



173, 188, 202, 225. 

 Slipher, V. M., 106, 114, 204. 

 Sime, J., 27. 



