CONTENTS. XV 



Conclusion : Retrospective glance. Physical description of the 

 Universe necessarily restricted within definite limits. Pre- 

 sentation of the actual relations of cosmical bodies to each other. 

 Kepler's laws of planetary motion. Simplicity of uranologic 

 in comparison with telluric problems, on account of the exclu- 

 sion in the former of all considerations relating to heterogeneity 

 and changes of substance. Elements of Stability of the plane- 

 tary system, p. 447 452. 



Corrections and additions, p. 453 457. 

 Index, p. clvii. clxii. 



ERRATA. 



Page line 

 8 ... 2, from bottom, for " third and last volume," read " third 



and fourth volumes." 



44 ... 12, from top, for " Aristillus," read " Aristyllus." 

 72 ... 5, from bott. for "at 14' 7"," read " first 14' 7", then 11'." 

 74 ... 17, from top, for "167976," read "167612." 



203 ... 8, for " e Lyrse," read " e 5 Lyrse." 



212 ... 6, after " earliest calculations," insert " and measurements." 



266 ... 6, after " 1851" close the parenthesis. 



348 ... 3, after "Laplace," insert ( 56G ). 



363 ... 5, from bottom, after "earth," insert ( 58G ). 



370 ... 23, from top, for " ( 603 ) read " C 602 )." 



ii. ... 10, from bottom, for " 105," read " 108." (The reference 



to the English edition is correct.) 

 xiii. ... 11, for "393,"' read "392." (The reference to the English 



edition is correct.) 

 Ixv. ... 5, from top, for "593," read "540." 



