BIOGRAPHICAL INDEX 



that many other diseases are caused by bac- 

 teria. 



Schultze, Max Johann Sigismund, iv, 125. 

 Born at Freiburg, Baden, March 25, 1825; died 

 at Bonn, Prussia, Jan. 16, 1874. German anat- 

 omist and biologist. Remembered particularly 

 for his researches on protoplasm, and his dem- 

 onstrations that vegetable protoplasm and ani- 

 mal sarcode are to all intents and purposes iden- 

 tical. 



Schwann, Theodor, iv, 119. Born at Neuss, 

 Prussia, Dec. 7, 1810; died at Cologne, Jan. 14, 

 1882. Distinguished physiologist. He is re- 

 membered particularly as the founder of the 

 cell-theory. He made important investigations 

 of muscular and nervous tissues, and was the 

 discoverer of pepsin. 



Scrope, G. Poulett, iii, 132. Born at London, 

 1797; died Jan. 19, 1876. English geologist. 

 In 1823 he published a classical work on volca- 

 noes in which he claimed that volcanic moun- 

 tains are merely accumulated masses of lava 

 belched forth from a crevice in the earth's crust. 



Servetus, Michael, ii, 168. Born at Tudela, 

 Spain, 1511; burned at Geneva, Oct. 27, 1553. 

 Spanish physician and philosopher. He dis- 

 covered and described the pulmonary circula- 

 tion, and that the fluids contained in veins and 

 arteries are the same. He showed that the 

 blood is purified by respiration in the lungs, and 

 asserted that there are vessels in the lungs 

 "formed out of vein and artery." 



Siemens, Werner, vi, 178; vii, 181. Born at 

 Lenthe, near Hanover, Dec. 13, 1816; died at 

 Berlin, Dec. 6, 1892. German inventor and man- 



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