MONRO, ALEXANDER, secundus, an eminent physician and medical professor, young est SOD of the preceding, was b. at Edinburgh, Mar. 24, 1733. Ile studied at the university of that city; and in Oct.., 1755, obtained the degree of M.D. In Julyfollowiug he was appointed joint professor of anatomy and surgery with his father in the university of Edinburgh. He attended for some time the anatomical lectures of prof. Meekell at the university of Berlin. He also visited Leyden. Admitted a licentiate of the Edin burgh royal college of physicians, 1758, he was elected a fellow, 1759, and was after wards president. On the resignation of his father iu the latter year, he became full professor of anatomy, and also succeeded him as secretary of the philosophical society, which in 1783 was incorporated by royal charter, and took the name of the royal society of Edinburgh. In 1757 he published at Berlin a short treatise, Dc Venis Lym phatices Valvulosis, in support of the theory, that the valvular lymphatics over the whole of the animal body are one general system of absorbents; which led to a controversy with Dr. William Hunter,of London. Among his other works are—Oa the Structure and
Functions of the Nervous System, a large illustrated folio volume (Edin. 1183); On the Structure and Physiology of Rshes, also an illustrated folio volume (Edin. 1785); Descrip tion of all the Dame Mueosce of the human Body (Edin. 1788); and Three Treatises on the Brain, the Eye, and the Ear, illustrated by plates (Edin. 1797. 4to). He was a member of the royal academies of Paris, Madrid, Berlin, Moscow, and other learned institutions, and one of the first fellows of the royal society of Edinburgh, to whose Transactions lie contributed various papers. In 1708 his son, Dr. Alexander Morro, tertius, was con joined with him in the professorship; and in 1808 lie finally retired from the anatomical chair, and from his extensive practice. He died Oct. 2, 1817, in his 87th year.