BIBLIOGRAPHY OF HERSCHEL's WRITINGS. Gil 



yi.— Subject-Index to the scientific writings of Herschel. 



rHn.osui'iiicAi. Traxsaciions. Tear. Pace. 



Aperture : effect of I795 57 



: advantages of largo apertures 1800 255 



Apex of solar motion : defined 1783 273 



: defined and considered 1805 239 



: is not at, but near, A IhrcuUs 1804 360 



: isinE. A. 245° 52' 30", N. P. D. 40« 22' 1805 25G 



Asteroids : defined 1802 229 



Asteroid : justification of the name 1805 63 



Atmosphere of Mars, Venus, etc. : see Mars, etc. 



Atmospheric spectrum : of stars 1805 43 



Bayer's letters : do not indicate order of brightness. Examples 1790 174 



Bernard: 1792 14 



BiANCHlNl : 1793 201 



Binary stars : suspected 1782 143 



: see also Stars, and Double Stars. 



Bode: 1811 292 



Bradley : 1782 84 



: 1795 47 



363 



: 1803 < 



Brightness intrinsic and aggregate brightness defined - 1800 



Briiihtness of a star : defined 1800 



3G5 



Cassini: 1792 9 



: 1792 14 



: 1793 201 



: 1795 47 



Catalogue of Double Stars 1782 112 



: 1785 40 



Catalogue of 1,000 new Nebulte and Clusters 1780 457 



Catalogue of a second thousand of Nebulae and Clusters 1789 212 



Catalogue of 500 new nebultie, etc 1802 477 



Catalogues of the Comparative Brightness of the Stars : first 1796 166 



: second 1~96 459 



: third 1797 293 



: fourth 1799 121 



Central forces : other than gravity 1789 220 



Ceres : observations 1*^02 213 



: its diameter is 102 miles 1802 218 



: it hasadisk 1802 221 



( 100 



Classes of double stars : defined 1782< to 



( 103 



Classes of nebula} : defined - 1786 466 



Clocks: (used by Herschel) 1781 121 



Clusters : definition 1 ' °9 214 



: are composed of stars of equal magnitude 1789 216 



: are subject to central powers 1789 216 



: are ancient in proportion as their spherical form is completed . . 1739 1 ~;^. 



: thek evolution I'^l'* ~^'^ 



