WELCH, Adonijah Strong, senator, born in East Hampton, Connecticut, 12 April, 1821. He removed to Michigan in 1839, and was graduated at the State university in 1846, after serving as principal of its preparatory department from 1844. He then studied law, and was admitted to the bar in 1847, but in that year became principal of Jonesville high-school. He Went to California in 1849, and on his return in 1851 took charge of the Michigan normal school at Ypsilanti, where he remained till 1865. In that year he removed to Florida and settled in Jacksonville, where he was chairman of the State Republican committee during the canvass of 1868, which brought Florida back into the Union. He was then chosen United States senator, serving from 2 July, 1868, till 3 March, 1869. In 1869-'83 he was president of Iowa state agricultural college, where he is still a professor. It gave him the degree of LL. D. in 1873, and he received the same from Michigan university in 1879. He was president of the first teachers' association of Michigan in 1851. In 1882 he was sent to Europe by the commissioner of agriculture to inspect colleges of that science, and his report was published by the United States government. Dr. Welch is the author of "Analysis of the English Sentence" (New York, 1850) ; "Object Lessons" (1861); "Talks on Psychology" (1888); and "The Teachers' Psychology" (1888).