761 



U. S. DEPARTMENT OF AGRICULTURE, 



OFFICE OF EXPERIMENT STATIONS— BULLETIN NO. 153. 



A. C. TRUE. Director. 



PROCEEDINGS 



OF THE 



EIGHTEENTH ANNUAL CONVENTION 



OF THE 



ASSOCIATION OF AMERICAN AGRICULTURAL COLLEGES AND 



EXPERniENT F 



HELD .\T 



x^U, 



DES 3I0IXES, IOWA, NOVEMBER 1-3, 1904. 



EDITED BY 



A. C. TRUE and W. H. BEAL, for the Office of Experiment Stations, 



AND 



H. C. WHITE, for the Executive Committee of the Association. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 

 1905. 



