INTRODUCTION. IX 



suggestions of the numerous English treatises on fern- 

 culture ; and, without pretending to compete with these 

 numerous and valuable as well as expensive works, he 

 trusts that this volume may be of service to those in this 

 country who desire to cultivate ferns, and need a guide 

 especially adapted to the circumstances of their home. 



By introducing the subject with two chapters on the 

 growth, structure, and classification of ferns, an attempt 

 has been made to impress the mind of the beginner with 

 an idea that a knowledge of these subjects will vastly add 

 to his success. 



Numerous authors are quoted in the following pages, 

 and it is believed that due acknowledgment has been 

 made in every case where use has been made of the 

 thoughts of others. 



The writer desires to express his gratitude to those who 

 have aided and encouraged him during the preparation 

 of the book. Among such friends are T. F. Hunt, Esq., 

 who has kindly furnished the materials for some of the 

 best designs given in the plates ; and Dr. A. S. Packard, 

 jun., who has not only furnished the valuable, plate illus- 

 trating the insects which destroy ferns, but has also kind- 

 ly revised the chapter upon this subject, and added sev- 

 eral points of value. Mr. Emerton has given great care 

 to the drawing of the illustrations, and has certainly suc- 

 ceeded in making them all that could be desired. 



