Herschel, Sir John, life and work, [45]-50;
Magellanic clouds,[ 47], [422]
sun-spots,[ 58],[ 59], [144]
solar flames,[ 68]
anticipation of Neptune's discovery,[ 81]
status of Hyperion,[ 85]
Biela's comet,[ 95]
Halley's, [102]
comet of 1843 [103]
sixth star in "trapezium," [113]
grinding of specula, [116]
spectrum analysis, [136]
solar photography, [145] [154]
solar constitution, [151]
shadow round eclipsed sun, [182]
actinometrical experiments, [216]
solar heat, [217]
climate and eccentricity, [259]
lunar atmosphere, [263]
surface of Mars, [276]
Andromeda nebula, [396]
observations of nebulæ, [404]
double nebulæ, [412]
Herschel, Sir William, discovery of Uranus, [5];
founder of sidereal astronomy, [9]
biographical sketch, [11]-14
sun's motion in space,[ 15],[ 39], [425]
revolutions of double stars,[ 18], [442]
structure of Milky Way, 19-21, [423]
nature of nebulæ, 21-26, [401]
results of his observations,[ 25]
centre of sidereal system,[ 40]
theory of the sun, 54-56,[ 70]
asteroids,[ 75]
discoveries of Saturnian and Uranian satellites,[ 84],[ 87], [110]
comet of 1811[ 99]
reflecting telescopes, [109]-111
sun-spots and weather, [129]
transit of Mercury, [244]
refraction in Venus, [252]
lunar volcanoes, [266]
terrestrial affinity of Mars, [274]
Jovian trade-winds, [289]
rotation of Jupiter's satellites, [292]
ring of Saturn, [298]
rotation of Saturn, [302]
origin of comets, [369]
stellar photometry, [420]
Herz, comets' tails, [348]
Hevelius, "Mira" Ceti,[ 10];
contraction of comets,[ 92]
granular structure of comet, [362]
Higgs, photographs of solar spectrum, [211] [214]
Hind, solar flames,[ 70];
Iris and Flora discovered by,[ 77]
distortion of Biela's comet,[ 96]
transit of a comet, [101]
earth in a comet's tail, [326]
comets of 1843 and 1880 [349]
Schmidt's comet, [363]
new star, [392]
variable nebula, [403]
Hirn, solar temperature, [220];
resistance in space, [348]
Hodgson, outburst on the sun, [160]
Hoeffler, star-drift in Ursa Major, [426]
Hoek, cometary systems, [362]