74 SCIENCE PROGRESS. 



(i.) Formic acid, acetic acid and the homologues of these 



fatty acids up to caprylic acid C 8 H l6 O a . 

 (ii.) The aldehydes of these acids. 



(iii.) The nitriles of acetic, proprionic, valeric, and buty- 

 ric acids and hydrocyanic acid. 

 (iv.) Benzoic acid and benzoic aldehyde. 

 When oxidised with chlorine water they yield among 

 other bodies, fumaric and oxalic acids, and chlorazol. 



Oxidised by bromine water at high temperatures in a 

 sealed tube, Hlasiwetz and Habermann 1 isolated from among 

 the products formed carbonic anhydride, oxalic acid, 

 ammonia, bromanil (C 6 Br 4 2 ), bromoform (CHBr 3 ), mono- 

 brombenzoic acid, mono- and di-bromacetic acids, tribrom- 

 amidobenzoic acid (C 6 HBr 3 (Nfi )COOH ), asparaginic and 

 malaminic acids, leucine, and leucimide (CgHnNO). No 

 tyrosine was obtained. 



Bleunard, 2 working with the results of the action of 

 bromine, has been able to confirm the production of Schiit- 

 zenberger's glucoproteins. 



4. By dry distillation of proteids a complex oil, " Dip- 

 pel's oil," is produced which contains among other sub- 

 stances : — 



(i.) Hydrocarbons of the fatty series. 



(ii.) Ammonium salts of the fatty acids, e.g., butyric, 



valeric, caproic. 

 (iii.) Nitriles of this series from propyl nitrile to stearyl 



nitrile. 

 (iv.) Ketones of this series, 

 (v.) Carbonic anhydride, 

 (vi.) Ammonia and amines of fatty acid radicles, e.g., 



methylamine, propylamine, butylamine. 

 (vii.) Hydrocarbons of the benzene series, 

 (viii.) Amines of this series. Aniline and its homo- 

 logues. 

 (ix.) Phenol and its homologues. 

 (x.) Homologues of the pyridine group of bases : 



1 Liebig's Ann. d. Chew., 159, p. 304, 1871. 



- Comptes Rendus, vol. 90, p. 612, and vol. 92, p. 458. 



