﻿CONTENTS OF PART II. 



Page 



I. Contributions to the Natural History of the Acaleph^: of North America. By Louis 

 Agassiz. 



Part I. On the Naked-eyed Medusae of the Shores of Massachusetts, b their Perfect 

 State of Development. (With eight Plates.) 221 



II. Contributions to the Natural History of the Acaleph.e of North America. By Louis 

 Agassiz. 



Part II. On the Beroid Medusa? of the Shores of Massachusetts, in their Perfect State 

 of Development. (With eight Plates.) 313 



APPENDIX. 



Fellows of the American Academy of Arts and Sciences, ..... 377 

 Statutes of the American Academy of Arts and Sciences, ..... 384 



