Maury, Miss A. C., spectrographic investigations, [386];
discoveries of spectroscopic binaries, [387] [388]

Maxwell, J. Clerk, structure of Saturn's rings, [298] [300]

Mayer, C., star satellites,[ 17]

Mayer, Julius R., tidal friction, [272];
meteoric sustentation of sun's heat, [310]

Mayer, Tobias, stellar motions,[ 10];
solar translation,[ 15]
repeating circle, [122]
solar distance, [230]
satellite of Venus, [256]
lunar surface, [263]

Mazapil meteorite, [340]

Meldrum, sun-spots and cyclones, [164]

Melloni, lunar heat, [269]

Melvill, spectra of flames, [131]

Mercury, mass,[ 92];
luminous phenomena during transits, [244] [245]
spectrum, [245]
mountainous conformation, [246] [247]
rotation, [247] [248]
theory of movements, [248] [250]