PREFACE Vli 



well as the conclusions of many others who have 

 given particular consideration to the bean plant. A 

 few of the illustrations have been copied from other 

 publications in which case full credit is given. The 

 New Hampshire Agricultural College at Durham has 

 furnished several halftones of different varieties. One 

 interesting photograph was contributed by the Minne- 

 sota experiment station. Other illustrations than ap- 

 pear were planned, but the fire which destroyed the 

 publishing plant of Orange Judd Company, took witb 

 it both halftones and original photographs which 

 could not be duplicated. 



F"inally, if readers note any errors, which almost 

 invariably creep into a work of this character, they 

 will confer a favor upon the author by reporting 

 them to headquarters so that corrections can be 

 made in subsequent editions. 



Glenn C. Sevey. 



January, 1907 



