CONTENTS OF VOL. III. MRTH 



"HENCES 

 LIBRARY 



INTRODUCTION. 



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



sidering the Phenomena of the Universe as a Whole ............ 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, 119 137 ........... , ........................................................ 5113' 



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, 193 203 ........ 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 whose 

 periodicity is as yet uninvestigated, 240 247 .................... 204 247 



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 reciprocal dis- 

 tances. Period of revolution of two stars round a common 

 centre of gravity .................................................................... 271 289 



TABLES. 



Photometric Tables of Stars ............................................................ 134- 137 



Clusters of Stars ............................................................................ 191193 



New Stars ............................................ ............................................ 209217 



Variable Stars ................................................................................ 233-240 



Parallaxes ....................... .................................................................... 262 



Elements of Orbits of double stars ................................ 28^ 



R374779 



