360 W. Wendler: Chemische Physiologie 1917— 1919 [104 



tlie experiments with enzyrae dispersions from Gladiolus on carbohydrates, 

 starch was t he only Substrate showing consistent results, and these pointed to 

 increased hydrolysis following etherization. Data from tlie other carbohydrates 

 are conflieting and do not Warrant definite conclusions. — The action on carbo- 

 hydrates of barley flour from etherized and unetherized germinated seeds showed 

 a uniform inhibition resulting, from the anaesthetic. It was also shown that 

 anaesthetics do not effect dehydration. — The various data in this study Warrant 

 the eonclusion that the presence of the colloidal enzyme-protein complex or of 

 solid organic matter, such as meal or flour from tissues, introduces an undesir- 

 able source of error if, al tlie time that enzyme action must be stopped, these 

 substances are heated together with the Substrate. The experiments with barley 

 indicate that inhibiting enzyme action after freeing the Substrate from insoluble 

 organic matter tends to give more concordant results. — Tlie results as a whole 

 tend to confirm the view that anaesthetics exert a more or less direct influence 

 lipon tlie subsequent activities of plant enzyme.-. " 



656. Bourquolot, Em. und Jubry, A. Bio c h e m i s c h e Synthese 

 des a-Propyl-d-galaktosids mit Hilfe eines in der unter- 

 gärigen, an der Luft getrockneten Bierhefe enthaltenen 

 Enzyms. (Journ. de Pharm. Chim. [7], XIV, 1916, p. 193.) — Ref. in 

 Ctrbl. Biochem. Biophysik XIX, 1917, p. 308. 



657. Bourquelot, Em. et Aubry, A. Synthese biochimique d u 



p r o p y I - d - g a 1 a c t o s i d e a a 1 ' a i d e d " u n f e r m e n t c o n t e n u 

 d a n s 1 a 1 e v u r e de biere hasse sechee ä 1 ' a i r. ( Compt. Rend. 

 Acad. Sei. Paris CLXIII, 1916, p. 312—315.) 



658. Bourquelot. Em. et Aubry, A. 1 n f 1 u e n c e de 1 a s o u d e s u r 

 1 e s proprietes synthetisantes et hydrolysantes de 1 a 

 glucosidase a (gl u cosidase de 1 a 1 e v u r e b a s s e , desechee 

 ä l'air). (Compt. Rend. Acad. Sei. Paris CLXI, 1915, p. 184—186.) 



659. Büchner, E. und Reinke, F. Auswaschen von Invertase 

 und M a 1 1 a s e aus A z e t o n - D a u e r h e f e. (Biochem. Ztschr. 83, 1917, 

 p. 1—5.) — Ref. in Bot. Ctrbl. 140, 1919, p. 365. 



660. Büchner, E. und Skraup, S. Neuere Ansichten über die 

 Zymase. (Sitzber. Phys.-Med. Ges. Würzburg 1917.) — Ref. in Ctrbl. Bio- 

 chem. Biophysik 19, 1918, p. 883. 



661. Bunzell, Herbert H. and Hasselbring, Heinrich. The s u p p o s e d 

 action o f potassium p e r m a n ganate with plant peroxi- 

 dases. (Bot. Gaz. 63, 1917, p. 225—228.) 



662. Cavara, F. Produzione d i g o m m a a r a b i c a d a 1 1 ' Acacia 

 horrido Will d. (Rendic. R. Accad. Scienze fis. e matem., a. 57, 1918, p. 79—82.) 

 — Er erachtet, wie Sorauer und Grüß, daß der Ursprung des arabischen 

 Gummis nicht auf die Wirkung von Parasiten, sondern von Enzymen zurück- 

 zuführen sei. A. Borntraeger. 



663. Chrzaszcz, T. und Joscht, A. Über die Verschiebung ein- 

 zelner amylolytischer Kräfte der Malzamylase und deren 

 Verhalten beim Aufbewahren in Gegenwart verschiede- 

 ner Reagentien. (Biochem. Ztschr. 80, 1917, p. 211—241.) — Ref. im 

 Ctrbl. Biochem. Biophysik 19, 1918, p. 633. 



664. Clark, E. D. and Scales, F. M. Enzymes o f a cellulose- 

 destroying f u n g u s from the s o i 1 , Penicillium pinophilum. ( Journ. 



