Pape, Donati's comet, [345]
Parallax, annual, of stars,[ 10],[ 16],[ 33],[ 36], [416]-418;
horizontal, of sun, [227]
Encke's result, [230] [232]
[Pg 483] improved values from oppositions of Mars, [231] [237]
from light velocity, [231] [232] [241]
from recent transits, [236] [240]
from observations of minor planets, [238] [239]
general result, [242]
Paris Catalogue of Stars, [415]
Paschen, oxygen in sun, [215];
solar temperature, [220]
Pastorff, drawings of the sun, [101]
Peirce, structure of Saturn's rings, [298]
Perrine, eclipse photographs, [190];
nature of corona, [191]
observation
of Holmes's comet, [369]
nebula round Nova Persei, [401]
Perrotin, rotation of Venus, [252];
markings on, [255]
canals of Mars, [279]
clouds on Mars, [281]
striation of Saturn's rings, [299]
rotation and compression of Uranus, [303] [304]
changes of Pons's comet, [366]
Maia nebula, [410]
measures of double stars, [419]
Perry, eclipse of December, 1889 [187]