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U. S. DEPARTMENT OF AGRICULTURE. 

 BUREAU OF PLANT INDUSTRY— BULLETIN NO. 229. 



B. T. GALLOWAY, Chief of Bureau. 



AGRICULTURAL VARIETIES OF THE COWPEA 

 AND IMMEDIATELY RELATED SPECIES. 



BY 



C. V. PIPER, 

 Agrostologist in Charge of Forage-Crop Investigations. 



Issued February 29, 1912. 



WASHINGTON: 

 GOVERNMENT PRINTING OFFICE, 



1912, 



