Zach, Baron von, promotion of astronomy, [5], [6],[ 28];
Baily's Beads,[ 62]
search for missing planet,[ 72]
rediscovery of Ceres,[ 74]
use of a heliostat, [120]
Zantedeschi, lines in solar spectrum, [134];
lunar radiation, [269]
[ [Pg 489] lunar radiation, [269]
Zenger, observations on Venus, [253] [255]
Zenker, cometary tails, [348]
Zezioli, observation of Andromedes, [334]
Zodiacal light, relation to medium of space,[ 94];
to solar corona, [176]; meteoric constitution, [310]
Zöllner, electrical theory of comets,[ 99], [344] [346] [347];
solar constitution, [158]
observations of prominences, [194] [196]
reversion spectroscope, [202]
solar temperature, [220]
Mercurian phases, [245]
albedo of Venus, [255]
of Jupiter, [290]
of Saturn, [303]
of Uranus, [304]
condition of Venus, [256]
of great planets, [289]
Jovian markings, [297]
ages of stars, [375]
polarising photometer, [420] [421]
THE END