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circulating through them. Malpighi, 

 in 1661, while examining the lungs and 

 mesentery of frogs, discovered the 

 capillary circulation. He also discov- 

 ered the red corpuscles of the blood 

 in 1665. He is, also, properly regarded 

 as the founder of embryology. 



Manz, Wilhelm.— A German physiologist, 

 born in Freiburg in 1833. The flask- 

 like depressions found in the neighbor- 

 hood of the annulus conjunctiva of ani- 

 mals, and sometimes in man, are named 

 Manz's glands. They are not true 

 glands. 



Marshall, John.— An English anatomist 

 and surgeon, born 1818; died 1891. He 

 was appointed professor of surgery at 

 University College in 1866, and of 

 anatomy at the Royal Academy in 

 1873. In 1883 he became president of 

 the Royal College of Surgeons. Be- 

 tween the left pulmonary artery and 

 subjacent pulmonary vein is a triangu- 

 lar fold of the serous pericardium ; it 

 is known as the vestigial fold of 

 Marshall. 



Mauchart, Burkhard David. — A German 

 anatomist and surgeon, born at Mar- 

 bach in 1696; died at Tubingen, 1751. 

 He was professor of anatomy and sur- 

 gery at Tiibingen. He did away with 

 the doctrine of the laceration of the 

 peritoneum in the origin of hernia. The 

 odontoid, or check ligaments (alar liga- 

 ments), are named for this anatomist. 



Mauthner, Ludwig. — An Austrian ophthal- 

 mologist, born in Prague in 1840. The 

 thin membrane which invests the axis 



