Brooks, fragment of 1882 comet, [363];
cometary discoveries, [365] [366]
Brünnow, stellar parallaxes, [113] [416]
Bruno, Giordano, motion of stars, 9
Buffham, rotation of Uranus, [303]
Buffon, internal heat of Jupiter, [289]
Bunsen, discovery of spectrum analysis, [132]
Burchell, magnitude of η Carinæ,[ 48]
Burnham, stellar orbits,[ 46];
coronal photographs, [186]
measures of Nova Aurigæ, [399]
of planetary nebulæ, [404]
discoveries of double stars, [418] [430] [433] [435]
catalogue, [419]
system of 61 Cygni, [419]
Burton, canals of Mars, [279];
rotation of Jupiter's satellites, [292]
Calandrelli, stellar parallaxes,[ 33]