Heart Motu Cordis" (1628) by the English physician William Harvey. Harvey's book completely describes the systemic circulation and the mechanical force of the heart, leading to an overhaul of the Galenic doctrines. Otto Frank (1865–1944) was a German physiologist; among his many published works are detailed studies of this important heart relationship. Ernest Starling (1866–1927) was an important English physiologist who also studied the heart. Although they worked largely independently, their combined efforts and similar conclusions have been recognized in the name "Frank–Starling mechanism". Although Purkinje fibers and the bundle of His were discovered as early as the 19th century, their
Blood and Oil in the Orient Blood and Oil in the Orient Blood and Oil in the Orient was the first book written by Essad Bey, penname for Lev Nussimbaum (1905–42). The book was first published in 1929 when Essad Bey was only 24 years old. During the following eight years (1929–36), 16 books were published under his name. "Blood and Oil in the Orient", which Essad Bey claimed was an autobiography, concerns the political history of Azerbaijan in the early 20th century. It includes the escape of Lev and his father from Baku across the Caspian Sea to Turkistan and Iran during 1918 when massacres