FOREWORD 



With the exception of a part of the text of 

 "Aurelia: A Monograph of the Moon-jelly," the 

 material in this book is here published for the first 

 time. 



"Aurelia" first appeared in "The National Geo- 

 graphic Magazine" under the title of 'The Life 

 of the Moon-jelly." It has since been revised and 

 expanded. 



I hereby acknowledge my thanks to the Editors 

 of the forementioned magazine for their generous 

 permission to make use of this article. 



The entire action of this book takes place along 

 the shore of Long Island Sound, in the vicinity of 

 Glen Cove, L. I., less than twenty miles from the 

 metropolitan district of NewYork City. 



W. C. 



Glen Cove, L. I., 

 New York. 

 July, 1928. 



