THE PTOMAINES AND SOLUBLE FERMENTS 323 



Bacillus diphtheria. 

 Bacillus anthracis. 

 B<i < Him tuberculosis. 

 Spirillum cholerce Asiatics. 

 Bacillus of hog cholera. 

 Spirillum tyrogenum. 

 Bacillus of swine plague. 



Bacillus typhosus. 

 Bacillus of tetanus. 

 Staphylococcus aureus. 

 Spirillum Finkleri. 

 Bacillus urecB. 

 Bacillus butyric us. 

 Bacillus malaricB (?). 



Drs. Brunton and Macfadyen l have proved that 

 the albumoses, excreted by certain microbes, have 

 the power of liquefying gelatine ; and there is every 

 reason to believe that the liquefaction of gelatine, 

 during the cultivation of microbes, is due to the 

 action of albumoses. 



V 7 ery little is known of the composition of the 

 albumoses ; but their reactions with certain reagents 

 ( Millon's fluid, magnesium sulphate, copper sulphate 

 and potash, etc.) prove that they are derived from 

 proteids. They are neither albumins nor globulins ; 

 in other words, they belong to the albumose group 

 of bodies. 



Two albumoses, sucholoalbumin and suplago- 

 albumin, which Von Schweinitz 2 extracted from 

 pure cultivations of the microbes of hog cholera 

 and swine plague respectively, are white, pulveru- 

 lent substances, soluble with difficulty in water, and 

 precipitated from this solution by absolute alcohol. 

 They can be obtained in crystalline plates by drying 

 over sulphuric acid in vacuo. 



In addition to the ptomaines and albumoses, 

 other substances are formed by microbes. Among 



1 Proc. Roy. Soc. t vol. xlvi. (1889), p. 542. 

 - Journ. Amer. Chem. Soc., 1891. 



