L. M. Lawson, an American physician, born in Nicholas co., Ky., Sept. 10, 1812, died in Cincinnati, Jan. 21, 1864. His father was a pioneer Methodist minister who had emigrated from Virginia. He graduated in 1837 at Transylvania university, where in 1843 he became professor of general and pathological anatomy and physiology. In 1847 he became professor of materia medica and general pathology in the Ohio medical college, and in 1852 professor of the principles and practice of medicine and clinical medicine. In 1854 he was appointed to the chair of theory and practice of medicine and clinical medicine in the Kentucky school of medicine at Louisville. In 1857 he returned to the medical college of Ohio as professor of the theory and practice of medicine. In 1860 he filled the chair of clinical medicine in the university of Louisiana at New Orleans; and in 1861 he again returned to the medical college of Ohio, where he remained until his death. He conducted the " Western Lancet " from 1842 to 1864. In 1844 he edited an edition of Hope's "Morbid Anatomy." His chief fame rests upon his " Practical Treatise on Phthisis Pulmonalis" (Cincinnati, 1861).