Joseph Hyrtl, an Austrian anatomist, born at Eisenstadt, Hungary, Dec. 7, 1811. He studied at Vienna, became in 1837 professor of anatomy at Prague, and was recalled to Vienna in 1845 in the same capacity, became rector of the university, and retired March 16,1874. He is distinguished for his labors in comparative anatomy, his investigations on the organ of hearing, and the invention of many anatomical instruments. He was the first to introduce a knowledge of topographical anatomy into Germany, and published a manual relating to this branch of science (2 vols., 1847; 5th ed., 1865). His Lehrbuch der Anatomie des Men-schen (1847; 11th ed., 1870) is a text book in German universities, and has been translated into many foreign languages. Among his other principal works are Handbuch der praktischen Zergliederungskunst (1860), an elaborate description (1865) of the museum of comparative anatomy, which he had founded, and Das Nie-renbecken der Saugethiere und des Menschen (Vienna, 1870). His preparations, famous for many years, demonstrate by colored material injected through some of the principal arteries the presence of the microscopic arteries and veins accompanying the lacteal vessels in the minute intestinal papilla). By the same means he demonstrated in 1874 the presence of a vascular net in the cornea of the eye, and after many ineffectual attempts he succeeded in filling the arteries and veins of an infant eight days old from the umbilical vein with coloring matter so perfectly as to reach and penetrate the minute arteries and veins of both corneae.