Stars, double, physical connection surmised,[ 17];
proved,[ 18], [442]
masses,[ 38],[ 42]
catalogues,[ 43],[ 45],[ 47],[ 50], [418] [419]
orbits,[ 46], [418]
discoveries,[ 43],[ 46],[ 47], [418] [419] [435]
photographs, [409]
evolution, [420]
Stars, gaseous, [377]-380
Stars, temporary,[ 24], [392]-401
Stars, variable, early discoveries, [9];
η Carinæ,[ 48],[ 49], [379]
sun-spot analogy, [128] [392]
spectra, [379]
Algol class, [390] [391]
catalogues, [391] [392]
Stefan, law of cooling, [219]
Steinheil, stellar photometry, [420];
silvered glass reflectors, [429]
Stewart, Balfour, Kirchhoff's principle, 135 note;
solar investigations, [154] [155]
Stewart, Matthew, solar distance by lunar theory, [230]
Stokes, prevision of spectrum analysis, [138]
Stone, E. J., reversal of Fraunhofer spectrum, [172];
distance of the sun, [231] [232] [236]
transit of Venus, [240]
Cape catalogue, [415]
proper motions, [426]