XVIII INTRODUCTION. 



When I assert that any individual can subdue his fruit enemies if he chooses, I 

 speak from my own positive knowledge ; and although I do not wish to be under- 

 stood to say that the instructions contained in this book are the best, I do wish to be 

 understood to say, that some general plan of treatment should be adopted. An indi- 

 vidual who resolutely determines to do it can save his fruits; but if all his neighbors 

 for miles round shall act with him in carrying out the same instructions, the work of 

 each will be less even the first year, and all subsequent seasons will be comparatively 

 nothing. How such instructions are to be generally disseminated or such associations 

 to be formed, it is not for an author to determine. 



The next portion of this work, both the text and plates of which are in an 

 advanced stage of preparation, will treat of the various Caterpillars injurious to Fruit 

 trees and Grape vines. But the publication of an illustrated work like this is attended 

 with so much expense that it is deemed advisable to await the verdict of the fruit- 

 growing public before completing another part. If the public show by the reception 

 of the present volume that more is wanted, both author and publisher will be encou- 

 raged to bring it out at an early period. 



NEWARK, N. J., April 15, 1865. 



