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FIRST PRINCIPLES 



OF 



AGRICULTURE. 



BT 



EDWARD B. VOORHEES, A.M. 



DIRECTOR or THE NEW JERSEY AGRICULTURAL EXPERIMENT STATION, 



AKD PROFESSOR OF AGRICULTURE IK RUTOEBS COLLKUK, 



NEW BRUNSWICK, N.J. 



SILVER, BURDETT AND COMPANY. 



Nw YORK. BOSTON. CHICAGO. 



