. 314 SPECIAL RESULTS IN THE URANOLOGICAL 



Small Planets. 



Flora . y '. . 2*202 



Victoria . / . 2-335 



Vesta .... 2-362 



Iris s . . . 2-385 



Metis . 2-386 



Plebe . . . 2-425 

 Parthenope . . .2*448 



Irene .... 2'553 

 Astrsea . . .2*577 



Egeria. . . 2'579 



Juno . . . . 2-669 



Ceres .... 2'768 



Pallas .... 2-773 



Hygeia . . . 3-151 



Jupiter 5-20277 



Saturn 9-53885 



Uranus ..... 19-18239 



Neptune 30-03628 



The simple observation of the rapid diminution of the 

 periods of revolution from Saturn and Jupiter to Mars and 

 Venus, had, on the assumption of the planets being attached 

 to revolving spheres, led very early to conjectures respecting 

 the distances of these spheres from each other. As no 

 methodical system of observation and measurement appears 

 to have existed among the Greeks prior to Aristarchus 

 of Samos and the establishment of the Alexandrian Mu- 

 seum, tnere arose great diversities in the hypotheses formed 

 concerning the. order of the succession of the planets and 

 their relative distances; whether, according to the most 



