A. R. Harding 
Fox Trapping [PDF ebook] 
A Book of Instruction Telling How to Trap, Snare, Poison and Shoot a Valuable Book for Trappers

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. If all the methods as given in this book had been studied out by one man and he began trap ping when Columbus discovered America, more than four hundred years ago, he would not be half completed.