CONTENTS OF VOL. III. 



INTRODUCTION. 



Page 



Historical Review of the attempts made with the object of con- 

 sidering the Phenomena of the Universe as an Unity of 

 Nature 1-28 



SPECIAL RESULTS OF OBSERVATIONS IN THE 

 DOMAIN OF COSMICAL PHENOMENA. 



A. URANOLOGICAL PORTION of the physical description of the 



world. a. ASTROGNOSY 29 32 



I. The realms of space, and conjectures regarding that which 



appears to occupy the space intervening between the heavenly 

 bodies 3350 



II. Natural and telescopic vision, 51 96; Scintillation of the stars, 



99111; Velocity of light, 111119; Results of photo- 

 metry, 119137 51137 



III. Number, distribution, and colour of the fixed stars, 138 

 188; Stellar masses (stellar swarms), 188193; The Milky 



Way interspersed with a few nebulous spots, 193203 138 203 



IV. New stars, and stars that have vanished, 204 217 ; Variable 

 stars, whose recurring periods have been determined, 217 

 240 ; Variations in the intensity of the light of stars Avhose 

 periodicity is as yet uninvestigated, 240247 204247 



V. Proper motion of the fixed stars, 248 252; Problematical 



existence of dark cosmical bodies, 252 255; Parallax 

 measured distances of some of the fixed stars, 255 264 ; 

 Doubts as to the assumption of a central body for the 

 whole sidereal heavens, 264270 248270 



VI. Multiple, or double stars Their number and reciproc al dis- 

 tances. Period of revolution of two stars round a common 

 centre of gravity ; 271 289 



TABLES. 



Photometric Tables of Stars 134137 



Clusters of Stars 191193 



New.Stars 209217 



Variable Stars 233 240 



Parallaxes 2C2 



Elements of Orbits of double stars .... 289 



