Berberich, mass of asteroids, [287];
orbit of Holmes's comet, [337]
Berkowski, daguerrotype of eclipsed sun, [166]
Bessel, biographical sketch, [28]-30;
reduction of Bradley's observations,[ 32]
parallax of 61 Cygni,[ 36]
disturbed motion of Sirius and Procyon,[ 41]
trans-Uranian planet,[ 79]
Halley's comet, [102]
theory of instrumental errors, [122]
personal equation, [123]
rotation of Mercury, [246]
lunar atmosphere, [263]
cometary emanations, [325] [345]
multiple tails, [347]
comet of 1807 [352]
Betelgeux, remoteness,[ 37], [417];
spectrum, [373] [381] [383] [384]
radial movement, [387]
Bianchini, rotation of Venus, [250]
Biela, discovery of a comet,[ 95]
Bigelow, magnetic and solar disturbances, [161];
theory of corona, [191]
Bigourdan, eclipse of 1893 [187];
velocity of comet of 1882 [364]
Bird's quadrants, [4],[112] [121]
Birmingham, colours of stars, 375 note;
discovery of T Coronæ, [393]