KENNEDY, Alfred L., physician, born in Philadelphia, Pennsylvania, 25 October, 1818. He was educated in his native city, studied civil and mining engineering and also medicine, being graduated at the University of Pennsylvania in 1848, then studied physiology and physiological chemistry in Paris and Leipsic, and geology and botany in Paris. Returning to Philadelphia, he began the practice of medicine in 1853, but in 1865 retired and settled in Montgomery County, Pennsylvania He was made assistant professor of chemistry in the Pennsylvania medical college in 1839, lecturer on chemical physics in 1840, and on general and medical botany and medical jurisprudence and toxicology in 1842. He was also appointed lecturer on medical chemistry In the Philadelphia school of medicine in 1843, and on industrial botany in 1849 and agricultural chemistry in 1852 in the Franklin institute in the same city. In 1849 he was elected professor of medical chemistry in the Philadelphia college of medicine. In 1842 he had established the Philadelphia school of chemistry, and remained at its head until 1853, when it became under a new charter the Polytechnic college of the state of Pennsylvania. He was then chosen its president. He was vice president of the American agricultural congress in 1876, and the same year held the same post in the Pennsylvania agricultural society. During the war he acted as a volunteer surgeon of the 2d army corps in the Gettysburg hospital, and in 1863 was commissioned colonel of volunteer engineers. Dr. Kennedy has published " Practical Chemistry a Branch of Medical Education, etc." (Philadelphia, 1852).