Schiener, Dr. J., photospheric structure, [165];
spectrographic researches, [384] [405]
spectrum of Andromeda nebula, [403]
stars and nebulæ in Orion, [407]
Schiaparelli, rotation of Mercury, [247];
of Venus, [251] [252]
spots on Mars, [275]
snow-cap, [277]
canals, [278]-280
compression of Uranus, [304]
comets and meteors, [327] [331] [332] [338]
anomalous tail of great comet, [364]
Pons's comet, [365]
origin of comets, [370]
measures of double stars, [419]
Schmidt, A., circular refraction in sun, [159]
Schmidt, J., sun-spot period, [126];
lunar rills, [263]
lunar maps, [265]
disappearance of Linné, [267]
cometary appendages, [363]
new stars, [393]
Schönfeld, extension of Bonn Durchmusterung, [412] [414]
Schrader, construction of reflectors, [243]
Schröter, a follower of Herschel, [5];
motions of sun-spots, [146]
biographical sketch, [243] [244]
observations on Mercury, [244] [246] [247]
on Venus, [250]-253 [255]
on the moon, [263]
a lunar city, [265]
Linné, [267]
spots on Mars, [275]
Jovian markings, [290]
Schülen, perspective effects in sun-spots,[ 54]
Schuster, photographs of corona, [178] [185];
spectra of oxygen, [214]