NOTE BY THE AUTHOR 



r ■ THE substance of the greater part of this book has been printed hereto- 

 fore in various periodicals, and is now republished by the kind permis- 

 sion of the proprietors of The Century, St. Nicholas, The Manhattan, TJie 

 American Naturalist, Appleton's Journal, Science News, The Field (London), 

 The Current, The Gongregationalist, and Good Cheer. 



In all cases, however, the articles have been carefully revised, and to 

 some of them extensive additions have been made. It is hoped that the 

 result will contain not only some entertainment, but also helpful suggestions 

 for those who take delight in out-door studies. 



New Haven, Conn., August 1, 1884. 



