FIRST PRINCIPLES 



OF 



AGRICULTURE. 



BY 



EDWARD B. VOORHEES, A.M. 



DiBECTOB OF THE NEW JERSEY AGRICULTURAL EXPERIMENT STATIOK, 



AND Professor of Agriculture in Rutgers College, 

 New Brunswick, N.J. 



SILVER, BURDETT AND COMPANY. 



New York. BOSTON". Chicago. 



