74 GIBBS. 
III. Methyl alcohol is oxydized by hydrogen peroxide. The 
temperature is an important factor of the speed of the reaction. 
Formaldehyde is the principal product. 
TV. All evidence points to the conclusion that hydrogen per- 
oxide is produced by the action of sunlight upon water and 
oxygen, not only in the open air but also in sealed tubes. 
V. When water is present, hydrogen peroxide will thus 
account for various sunlight oxidations. In the absence of mois- 
ture special activities or dissociations of the molecule account 
for the mechanism of the reactions. 
