Hans Paul Bernhard Gierke (19 August 1847 – 8 May 1886) was a German anatomist who was a native of Stettin.Gierke studied medicine in Berlin, Vienna, Leipzig, Würzburg, Breslau and Munich, graduating in Würzburg, where he obtained his doctorate in 1872. In 1874 he became prosector at Würzburg, where his teacher was Albert von Kölliker. In 1876 he was appointed professor of anatomy at the Imperial University of Tokyo. For health reasons he had to give up his academic career and return to Germany. In 1881 he became an assistant in the Physiological Institute in Breslau and in 1882 attained the title of professor extraordinarius. In 1883 he visited the Zoological Station in Naples. His health deteriorated rapidly. Soon, he died in the psychiatric hospital in Schöneberg near Berlin, at the age of 39. Wikipedia