OUTSTANDING WORK AND WORKERS 107 



Plankton Organisms showed that organisms require arti- 

 ficially, chemically pure solutions to be sensitized by nat- 

 ural waters before they can live and breed in them ; 



6. Wm. Bateson for his studies of variation ; 



7. Edward C. C. Baly for his discovery of artificial 

 photosynthesis ; 



8. Elliott Smith for his work on the graduated improve- 

 ment of the anterior region of the forebrain in a series of 

 animals from the jumping shrew to man. 



9. Sir F. Gowland Hopkins for his discovery of gluta- 

 thione, an oxygen transporter. 



10. D. Keilin for his discovery of the widely distributed 

 uncolored cell pigment, cytochrome, which is of value as 

 a controller of oxygen in the cell. 



11. E. S. Russell for showing in his The Study of Living 

 Things (1924) that there is an increasing importance of 

 mental factors as a vera causa in organic evolution. 



12. W. Trotter whose Instincts oj the Herd (1919) 

 throws light on social biology. 



13. Sir Francis Gal ton and (14) Karl Pearson for their 

 work on statistical biological studies. 



And the following Nobel Prize winners whose outstand- 

 ing work in chemistry and in medicine have a more or 

 less wide biological application : 



In Medicine : 



Sir Ronald Ross for his work on malaria (1902) and A. 

 V. Hill (1922) for his work on muscular reactions. 



