In 1888, he moved to Cornell University in Ithaca, New York, where he assumed the chair of Practical and Experimental Horticulture. He was elected an Associate Fellow of the American Academy of Arts and Sciences in 1900. He founded the College of Agriculture, and in 1904 he was able to secure public funding. He was dean of what was then known as New York State College of Agriculture from 1903 to 1913. In 1908, he was appointed Chairman of The National Commission on Country Life by president Theodore Roosevelt. Its 1909 Report called for rebuilding a great agricultural civilization in America. In 1913, he retired to become a private scholar and devote more time to social and political issues. In 1917 he was elected a member of the United States National Academy of Sciences.
