a complex structure, 259 (#x7_x_7_i65);
its vital importance to us, 260 (#x7_x_7_i66).
Ball, Sir R., on dark stars, 143 (#x4_x_4_i58);
Time and Tide, 233 (#x7_x_7_i14).
Barnham, S.W., on double stars, 123 (#x4_x_4_i24).
Blue of sky due to dust, 251 (#x7_x_7_i49).
Boeddicker's map of Milky Way, 164 (#x5_x_5_i25).
Brewster, Sir D., against Whewell, 15 (#x1_x_1_i103).
Campbell, Prof., on spectroscopic binaries, 125 (#x4_x_4_i28);
on uncertainty of sun's motions, 179 (#x5_x_5_i48);
on number of binary systems, 286 (#x8_x_8_i17).
Carbon compounds, vast numbers of, 194 (#x5_x_5_i79).
Carbonic acid gas essential for life, 196 (#x5_x_5_i81).
Central position of sun, importance of, 305 (#x8_x_8_i59).
Chaldeans the first astronomers, 2 (#x1_x_1_i82).
Chalmers Dr., on plurality of worlds, 13 (#x1_x_1_i100).
Chamberlin, T.C., origin of nebulæ, 120 (#x4_x_4_i15);
on stellar disruption, 186 (#x5_x_5_i63).
Chromosphere, the sun's, 107 (#x3_x_3_i78).
Clerke, Miss A.M., on limits of star system, 138 (#x4_x_4_i50);
on Milky Way, 158 (#x5_x_5_i16), 160 (#x5_x_5_i20);
on solar cluster, 165 (#x5_x_5_i26);
on uncertainty of the sun's motion, 177 (#x5_x_5_i45).
Climate, persistence of mild, 222 (#x6_x_6_i54).
Clouds, importance of, to life, 248 (#x7_x_7_i42).
Clusters in relation to Galaxy, 67 (#x3_x_3_i2).
Comte, on impossibility of real knowledge of the stars, 25 (#x1_x_1_i119).
Conclusions of the book, 317 (#x8_x_8_i94);
bearing of, on science and on religion, 319 (#x8_x_8_i106).
Corona of sun, 108 (#x3_x_3_i80).
Criticisms of article in Fortnightly Review, 168 (#x5_x_5_i32), 180 (#x5_x_5_i50).
Darwin, Prof. G., on meteoritic hypothesis, 133 (#x4_x_4_i44);
on origin of moon, 233 (#x7_x_7_i14);
on instability of annular systems, 295 (#x8_pgepubid00046).
Day and night, uses of, 215 (#x6_x_6_i38).
Diagrams of star-distribution, 62 (#x2_x_2_i51), 66 (#x2_x_2_i61).
Diffraction-gratings, 30 (#x1_x_1_i125).
Disruption of stellar bodies, 187 (#x5_x_5_i65).
Doppler principle, the, 37 (#x1_x_1_i140).
Double stars, evolution of, 123 (#x4_x_4_i24);
not fitted for life, 286 (#x8_x_8_i17).
Dust, importance of, 249 (#x7_x_7_i45).
Dust-free air, results of, 254 (#x7_x_7_i55).
Earth, first measured, 5 (#x1_x_1_i85);
in relation to life, 218 (#x6_pgepubid00034);
the only habitable planet, 262 (#x7_pgepubid00040);
cannot retain hydrogen, 264 (#x7_x_7_i76);
supposed extreme conditions of, 271 (#x7_x_7_i87).
Earth's mass, how related to life, 265 (#x7_x_7_i77).
Ecliptic, obliquity of, in relation to life, 219 (#x6_x_6_i49).