Holden, Uranian satellites,[ 87];
eclipse expedition, [180]
coronal extensions, [186]
solar rotation, [203]
transit of Mercury, [245]
intra-Mercurian planets, [250]
drawing of Venus, [252]
lunar photographs, [268]
canals on Mars, [279]
surface of Mars, [281]
transits of Jupiter's satellites, [292]
markings on Uranus, [304]
disintegration of comet, [362]
colours of double stars, [374]
Nova Aurigæ, [398]
Orion and Trifid nebulæ, [403] [404]
director of Lick Observatory, [435]
Holden and Schaeberle, observations of nebulæ, [433]
Holmes, discovery of a comet, [337]
Homann, solar translation, [406]
Hooke, solar translation,[ 10];
stellar parallax,[ 16]
repulsive action on comets, 102 note
automatic movement of telescopes, [120]
spots on Mars, [274] [275]
Hopkins, solidity of the earth, [257]
Horrebow, sun-spot periodicity, [125];
satellite of Venus, [256]
Hough, G. W., red spot on Jupiter, [295] [430];
observations of double stars, [419]
Houzeau, solar parallax, [240]
Howlett, sun-spot observations, [155]