III. THE CONSTITUTION OF THE INDIVIDUAL. 



(See Tyson, The Cell Doctrine, Phila. 1S7S ; HALLiiiURTON, Chemical 

 Physiology, pp. 183-216; Huxley, Review of the Cell Theory, British and 

 Foreign Medico-Chirurgical Review. Oct. 1853, Vol. 12, pp. 285-314; Mar- 

 SHALL, Biological Lectures, pp. 159-191 ; Hertwig, The Cell, 1895; Wilson, 

 The Cell, 1896.) 



Partes .similare.s and partes dissimilares, Aristotle 

 {384-321, B. c). 



Organs and tissues, Galen (130-200); Fallopius 

 (1523-1562). 



Cellular structure of plants, Hooke (1667); Mal- 

 piGHi (1670); and Grew (1672). 



The fibre-theory, Haller (1757). 



Wolff's theory (1759). 



The globular theory (1779-1842). 



Discovery of the nucleus, Robert Brown (1833). 



The cell-theory, Schleiden and Schwann (1838). 



Sarkode, Dujardin (1835). 



Protoplasm, Purkinje (1840); Hugo von Mohl 

 (1846). 



The protoplasm-theory. Max Schultze (1861). 



Cell-division, VON MoiiL (1835); Nageli, Kolliker 

 (1844) ; Remak, Virchow (i860). 



Nuclear division. A, Schneider (1873); Butschli 

 (1875); FoL (1875); Flemming (1882). 



Attraction sphere and centrosome. Van Beneden 

 (1887); BOVARI (1888). 



The inadequacy of the cell-theory, Huxley (1853) ; 

 Whitman (1893). 



The search for organisms more elementary than the 

 cell, Brucke (1861); Altmann (1890), "Bio- 

 blasts." 



