W. A. Davis 351 



in plant tissues as to whether either of these sugars is better adapted 

 than the other to tissue formation or to respiration. All such con- 

 clusions in the past are valueless because the analytical methods at 

 present existing do not give true values for these sugars. 



REFERENCES. 



Brown and Morris (1893). Trans. Chem. Soc. 63, 604. 



Daish (1914). Joiirn. Agric. Sci. 6, 255. 



LiNDET (1900). Ann. Agron. 26, 103 and Zeil. Ver. Dent. Zuckerind. 37, 281. 



(1911). Ann. Inst. Nat. Agron. ii. 10, 49. 



Parkin (1912). Biochem. Journ. 6, 1. 



Pellet (1913). Dosage du Sucre par Inversion {Sucrerie Indigene, 1913). 



(Received October 4, 1915.) 



Journ. of Agric. Sci. vii 24 



