Leonard Landois

Leonard Landois (December 1, 1837 - November 17, 1902) was a German physiologist who was a native of Münster. He studied medicine at the University of Greifswald, and was later a professor and director of the institute of physiology at Greifswald. In 1866 he became a member of the German Academy of Sciences Leopoldina. He was a younger brother to zoologist Hermann Landois (1835-1905).

Leonard Landois was a pioneer in the study of blood transfusions and the phenomena of agglutination. In 1875 he demonstrated that when red blood cells are taken from one species of animal and are mixed with serum taken from an animal of a different species, the red cells typically clump and sometimes burst (hemolyze).

Selected writings

 * Über der Haarbalgparasiten des Menschen (treatise about Parasites of Humans); (1861)
 * Die Transfusion des Blutes (On Blood Transfusion); (1875)
 * Lehrbuch der Physiologie des Menschen (Textbook of Human Physiology); (1880)
 * Die Urämie (treatise on Uremia); (1890)