John Dryander, a German physician, whose true name was Eichmann, called himself Dryander in accordance with the custom of adopting names derived from the Latin or Greek languages. He was born about the year 1500 in the Wetterau in Hesse. After obtaining proficiency in mathematics and astronomy, he went to Paris where he studied medicine for several years. Returning to Germany, he engaged in the study of practical anatomy and became a professor in Marburg, in which city he died in the year 1560. He is said to have conducted the first dissections that were made in Marburg, where he taught anatomy for twenty-four years, or from 1536 to 1560. [Illustration: DRYANDER] Dryander, although he was a partisan of Mondino and da Carpi, and was a fierce and sometimes an unfair opponent of Vesalius, deserves to be regarded as one of the restorers of anatomy. He made several observations upon the distinction between the cortical and the medullary portions of the brain; and was one of the earliest practical anatomists of the sixteenth century to furnish anatomical illustrations. He made important astronomical observations and was the inventor of several useful instruments. He was the author of three medical works of which two were upon anatomy. His _Anatomia Mundini_, which was published at Marburg in 1541, contains forty-six plates, many of which have been copied from Berengario’s work. [Illustration: ANATOMICAL FIGURE BY ESTIENNE, 1545] Charles Estienne [Illustration: SKELETON BY ESTIENNE, 1545 (Reduced one-half)]