Stone, O., star catalogues, [415];
measures of double stars, [419]
Stoney, carbon in photosphere, [152];
dynamical theory of planetary atmospheres, [288]
perturbations of Leonids, [338]
status of red stars, [375]
Stratonoff, star counts in Pleiades, [411]
Stroobant, satellite of Venus, [256]
Struve, F. G. W., stellar parallax,[ 35];
career and investigations, [43]-45
occultation by Halley's comet, [106]
Russo-Scandinavian arc, [261] [262]
Struve, Ludwig, solar translation,[ 40]
Struve, Otto, parallax of η Cassiopeiæ,[ 38];
solar velocity,[ 40]
his father's successor at Pulkowa,[ 45]
eclipse of 1842 [ 62],[ 64]
Neptune's satellite,[ 84]
research on Saturn's rings, [300] [301]
variable nebula, [403]
Stumpe, solar translation,[ 40]
Sun, Herschel's theory, 54-57,[ 70], [149];
atmospheric circulation,[ 58],[ 59]
chemical composition, [135] [211]-213
mode of rotation, [146] [147]
Kirchhoff's theory, [149]
Faye's, [150]-152
convection currents in, [150] [152] [165]
dissociation, [152] [206]-210
luminous outbursts, [159]-161
explosions, [205]
heat emission, [216] [217] [221] [222] [225] [226]
temperature, [217]-220 [226]
problem of distance, [227]
results from transits, [230] [232] [236] [240]
from oppositions of Mars, [231] [237]
from light-velocity, [232] [241]
from measurements of minor planets, [238]
concluded value, [242]
maintenance of heat supply, [310]-313
past and future duration, [312]
Sun-spots, speculations regarding,[ 52],[ 53];
Wilson's demonstration,[ 53], [154]
distribution,[ 53],[ 58], [148]
cyclonic aspect,[ 58], [144] [157] [158]
periodicity, [126] [128] [162] [163]
magnetic relations, [127] [160] [161]
meteorological, [129] [164]
auroral, [129] [130] [160] [162]
photographs, [145] [154]
level, [155]
spectra, [156] [207] [208]
volcanic hypothesis, [158]
Lockyer's rationale, [159]
planetary influence, [163]
relation to Jovian markings, [297]
[Pg 487] relation to Jovian markings, [297]
Swan, chromosphere,[ 70];
sodium line, [132]