STOCKBRIDGE, Levi, agriculturist, born in North Hadley, Massachusetts. 13 March, 1820. He was educated in New England common schools and academies, and then turned his attention to farming. His application of scientific principles to his occupation led to his appointment on the State board of agriculture, where he served for four terms of three years each, and since 1868 he has been chairman of the State board of cattle commissioners. In 1867 he was called to a professorship in the Massachusetts agricultural college, Amherst, where he was also acting president in 1876-'9, and president in 1880-'2. Prior to the establishment of experiment stations he began and prosecuted during several years a laborious and extended series of investigations on the movement of sap in growing plants, especially trees, and the force that plants exert in their growth. About the same time he devised and prosecuted a series of experiments as to the effect of moisture, and with apparatus that he invented for the purpose made observations on percolation, evaporation, and dew. But his most valuable work to the agriculturist was a series of investigations that he conducted during 1868-'70 on the chemical composition of farm crops, and the effect of supplying to the soil on which any particular crop was to be raised the constituents of that crop. This led to the employment of the special fertilizers that are now widely used in the place of general fertilizers, or random fertilizers, which for a special purpose might be valuable or worthless. He is a member of various agricultural associations and has made many addresses on his specialties in New England and New York. His writings, including the results of his researches, appear in various publications, chiefly in the annual reports of the Massachusetts agricultural college.--His brother, Henry, lawyer, born in North Hadley, Massachusetts, 31 August, 1822, was originally named Henry Smith Stockbridge, but he dropped the Smith in early manhood. He was graduated at Amherst in 1845, and studied law in Baltimore, where he was admitted to the bar, 1 May, 18/8, and has since practised his profession. During the civil war he was a special district attorney to attend to the business of the war department, and in 1864, as a member of the legislature, he drafted the act that convened a constitutional convention for the abolition of slavery in the state. He took an active part in the proceedings of the convention, and defended the constitution that it adopted before the court of last resort. Afterward he instituted, and successfully prosecuted in the United States courts, proceedings by which were annulled the indentures of apprenticeship by which it was sought to evade the emancipation clause. Mr. Stockbridge thus practically secured the enfranchisement of snore than 10,000 colored children. He was judge of the circuit court for Baltimore county in 1865, a delegate to the Loyalists' convention in 1866, and vice-president of the National Republican convention of 1868. Mr. Stockbridge has been for twenty years editor of the Fund publications of the Maryland historical society, of which he is vice-president; and he is the author of publication No. 22; "The Archives of Maryland" (Baltimore, 1886); besides various contributions to magazines.