136 



PROCEEDINGS OF THE AMERICAN ACADEMY 



and the ocean may cause these changes to be more marked in the 

 former than in the latter." 



The subject was further discussed by Professor Rogers and 

 Mr. Desor. 



Professor Agassiz addressed the Academy upon animal 

 morphology, presenting some original views which he had re- 

 cently developed upon this subject. 



Mr. Bond made the following astronomical communica- 

 tions, viz. : — 



1. Observations on the Satellite of Neptune, made at the Cambridge 



Observatory, 1847-48. 



" The light of the satellite we have found to be nearly equivalent 

 to that of a star of the fourteenth magnitude, as stars of that class, 

 brought as near to Neptune as is its satellite, about equal the latter in 

 faintness. 



"Under good definition, Neptune shows a round disk, distinguishing 

 it from stars of the same brightness. Its color is bluish, resembling 

 the light of Uranus. We have more than once noticed an appearance 

 somewhat of the nature of that from which Mr. Lassell has inferred 



