Conclusion. 



Although the nbovo hypothopis will not 

 readily 1 ond itself for verification "by ordin-^.ry 

 chemical analysis, yet its correctness is 

 r3ndered highly prohabl e by the fact that it appears 

 to offer a satisfactory explanation of the follow- 

 ing phenomena: 



1 . Grov/th; 



2. Variability; 



3. Spontaneous division; 



4. Inheritance of structural variations; 



5. The rod-like or thread-like form of many 



of the lov^rer organisms; 



6. The optical activity of substances obtained 



from living tissues; 



7. The large porcentage of wat 3r in living 



L -L S iC'U. *> k." J 



8. The need for inorganic salts by all living 



organisms ; 



9. The remarkable chemical changes which occur 



during metabolism; 



10. The neces^'ity for amino -cids with complex 



side chains for the nourishment of 

 all animals; 



11. The alpha position of the amino group in 



amino acids obtained from proteins; 



12. The alpha hydrogen atom in such acids. 



>^ "x^: '% 



