109 



vulaceae, Boraginaceae, Labiatae, Solanaceae, Rubiaceae, Com- 

 positae, etc. Active oxidases are also likely to be associated 

 with chromogens in the latex plants. These conclusions are 

 interesting because of the bearing they have upon Palladin's 

 theory that these chromogens play an important part in the 

 respiration and the metabolism of plants. 



The writer wishes to express his deep indebtedness to Professor 

 William J. Gies for suggesting the nature of this investigation 

 and for the aid received from him during its course. The sincere 

 thanks of the writer are likewise due to Doctor N. L. Britton 

 of the New York Botanical Garden, for material obtained from 

 the Conservatories, and also for the other privileges of the 

 institution. 



Supplementary Bibliography of Papers Recently 



Published 



Bailey. Oxidizing enzymes and their relation to "sap-stain" in 



lumber. Bot. Gaz. 50: 142. 1910. 

 Bassett and Thompson. The preparation and properties of an 



oxidase occurring in fruits. Jour. Am. Chem. Soc. 33: 416. 191 1. 

 Battelli and Stern. Recherche sur la fonction de la catalase. Compt. 



Rend. Soc. Biol. 68: 811. 1910. 

 Bertrand and Rosenblatt. Sur la temperature mortelle des tyrosin- 

 ases vegetales. Compt. Rend. Acad. Sci. 150: 1142. 1910. 

 Betting. Oxidase and peroxidase in tobacco. Reviewed in Chem. 



Abstracts 5: 740. 191 1. 

 Combes. Du role de I'oxygene dans la formation et la destruction 



des pigments rouges anthocyaniques chez les vegetaux. Compt, 



Rend. Acad. Sci. 150: 1186. 1910. 

 Dox. Catalase of molds. Jour. Am. Chem. Soc. 32: 1357. 1910. 

 Gramenisky. Ueber die Widerstandfahlgkeit der Oxydasen. Re- 

 viewed in Zentralblt. f. Biochem. u. Biophysik. i: 606. 1910. 

 Harter. Starch content of leaves dropped in autumn. Plant World 



13: 144. 1910. 

 Hoffman and Sokolowski. Vergleichenden Atmungsversuche mit 



verschiedenen Kartoffelsorten. Zeitsch. f. Spiritusindustrie 33: 



391. 1910. 

 Huber. Ueber die Lebensdauer der Oxydationsenzyme in der 



Birnenfriichte. Schweiz. Wochensch. f. Chem. u. Pharm. 48: 



393. 1910- 



