General Index 



427 



\Romanfigures refer to the chapters, Arabic to the articles.] 



Chart, photographic, xm. 280 

 Chemistry of the sun, xm. 299 



301, 303 



Chinese astronomy, i. 6, 1 1 

 Chords, ii. 47 

 Chromosphere, x. 205 ; xm. 301, 



303 



Chronometer, x. 226 

 Circular motion, 11. 25, 26, 38, 51 ; 



iv. 76; vii. 139; vin. 158; ix. 



171-173. See also Eccentric, 



Epicycle 



Circumpolar stars, i. 9; n. 35 

 Clock. See Pendulum clock and 



Chronometer 

 Clustering power, xn. 261. See 



also Condensation of nebulae 

 Coelum Australe Stelliferum (of 



Lacaille), x. 223 

 Collimation error, x. 225 n , 

 Comets, i. i ; n. 30 ; in. 68, 69 ; v. 



ioo, 103-105; vi. 127, 129; vii. 



144, 146; vin. 153; ix. 190, 



192 ; x. 200, 205, 217, 224; xi. 



228, 231. 243, 248, 250 ; xn. 



253, 256, 259; xm. 272, 291, 



304, 305, 307 

 Comet, Biela's, xm. 305 

 Comet, Brooks's, xm. 305 

 Comet, Encke's, xm. 291 

 Comet, Halley's, vii. 146; x. 200, 



205 ; xi. 231, 232 ; xm. 291, 307 

 Comet, Lexell's, xi. 248; xm. : 



305 



Comet, Olbers's, xm. 291 

 Comet, Pons-Brooks, xm. 291 

 Comet, Tebbutt's, xm. 305 

 Comet, Tuttle's, xm. 291 

 Cometographia (of Hevel), vm. 



153 

 Commentaries on the Motions of \ 



Mars(of Kepler), vii. 135 n, 139, 



141, I50M 

 Comnientariolus (of Coppernicus), : 



iv. 37 ; v. ioo 

 Compleat System of Optics (of 



Smith), xii. 251 

 Complete induction, ix. 195 



Condensation of nebulae, xi. 250; 



xii. 261 ; xm. 318 

 Conic, conic section, vn. 140 n ; 



xm. 309 

 Conjunction, n. 43, 48 n ; HI. 60 ; 



v. 1 10, 1 1 1 ; x. 227 

 Conservation of energy, xm. 319 

 Constant of aberration, x. 209, 2 10; 



xm. 283 n 

 Constellations, i. 12, 13; n. 20, 



26, 34, 42 ; x. 223 

 Construction of the heavens, xn. 



257. See also Sidereal system, 



structure of 

 Corona, vn. 145 ; x. 205 ; xm. 



301, 303 



Counter-earth, n. 24 

 Crape-ring, xn. 267 ; xm. 295 

 Craters (on the moon), vm. 153 ; 



xm. 296 

 Curvature of the earth. See 



Earth, shape of 



Daily Motion (of the celestial 

 sphere), i. 5, 8, 9, 10 ; n. 23, 24, 

 26, 33, 38, 39, 46, 47 J i". 67, 

 68; iv. 78, 80, 83 ; v. 98, 105 ; 

 vi. 129; vm. 157 



D'Alembert's principle, xi. 232, 

 237 n 



Damascus, HI. 57 



Darlegung (of Hansen), xm. 286 



Day, 1.4, 11,16; 11.47; xm. 287, 

 293, 320 



Day-and-night, i. i6n 



Day-hour, i. 16 



Declination, n. 33, 35, 39 ; x. 213, 

 218 ; xm. 276 



Declination circle, n. 33 



De Coelo (of Aristotle), n. 27 



Deductive method, inverse, ix. 



195 

 Deferent, n. 39, 48, 51; m. 68 ; 



iv. 86, 87 

 Degree, i. 7 

 Deimos, xm. 295 

 De Magnete (of Gilbert), vn. 



