Vapor of Iron, 291.
Variable Stars, 341.
Vega, 337.
Velocity of a Planet, 138.
” ” Light, 219.
Venus, 134, 150.
Venus, Appearance of, during Transit, 157.
Venus as a World, 158.
” Composition of Air on, 160.
Venus, Diameter and Distance of, 391.
Venus, Gravitation on, 159.
” Greatest Brilliance of, 152.
Venus, in Telescope, 151.
” Period and Rotation of, 391.
Venus, Sun’s Distance deduced from Transit of, 158.
Venus, Temperature of, 159.
” Transit of, 154.
Venus, When and where to seek, 150.
View of Earth from the Sun, 28.
Views of Lunar Scenery, 104, 109.
” ” Mars, 189, 190.
Visibility, Limit of, 102.
” of Earth, 369.
Volcanoes, Number of, 112.
Voyage to the Moon, 124.
” ” Sun, 2.
Vulcan, 48, 49, 57.