d)e ^orlU'fii ^natomifitfi 



time he taught anatomy and practiced 

 medicine. For seventeen years he lec- 

 tured at the University of Gottingen 

 on anatomy, botany, and physiology. 

 Finally he returned to his native city, 

 Berne, where he lived in retirement 

 until his death. He established the doc- 

 trine of muscular irritability. 



Harvey, William. — An English anatomist 

 and physician, born 1578; died 1657. 

 Harvey will always be recognized as the 

 first person to demonstrate the circula- 

 tion of the blood. Others came up to 

 the threshold, but entered not in. He 

 began, at the age of fifteen, his studies 

 at Cambridge, and later traveled in 

 France, Germany, and Italy. He re- 

 mained at Padua from 1599 to 1602, in 

 order to hear the lectures of Fabricius 

 ab Aquapendente. Afterward he re- 

 turned to England in time to become 

 physician to James I, and later to 

 Charles I. Soon after 1613, he began, 

 through his lectures, to make known 

 the doctrine of the circulation of the 

 blood, but he did not publish the re- 

 sults of his researches until 1628, after 

 submitting them to fifteen years of 

 proofs and counter-proofs of every kind. 



Hasner, Joseph von — A German ophthal- 

 mologist, born in 1819; died 1892. The 

 valve of Hasner, in the nasal duct, is 

 named for this person. 



Hassall, Arthur Hill.— An English physi- 

 cian, born in Teddington in 1817; died 

 1894. The peculiar bodies found in 

 the medulla of the thymus gland, are 

 termed the concentric corpuscles of 



