LIST OF PLATES 



PLATE 



I. Michael Faraday Frontispiece 



Edward Jenner 

 Thomas Huxley 

 Gregor Mendel 



Facing Page 



IL Claude Bernard 68 



Louis Pasteur 

 Charles Darwin 

 Paul Ehrligh 



in. Theobald Smith 69 



Walter B. Cannon 

 Sir Frederick Gowland Hopkins 

 Sir Henry Dale 



IV. Sir Alexander Fleming 100 



Sir Howard Florey 

 G. S. Wilson 

 Sir MagFarlane Burnet 



V. Max Plangk ioi 



Sir Ronald Fisher 

 C. H. Andre WES 



J. B. CONANT 



vu 



