362 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Streptothrix pseudo-tuberculosis.* — P, Sanfelice compares the- 

 morphology, cultural aspects, and pathogenic action of the various 

 members of the Streptothrix group with the Bacillus tuberculosis ;• 

 especially referring to their acid-fast properties and to the similar 

 morbid anatomical changes produced, and to the analogous histogenetic- 

 characters of pseudo-tuberculosis and tuberculosis. He refers to a 

 number of cases described by various authors, of Streptothrix infection 

 occurring in man. He considers that a real distinction beween pseudo- 

 tuberculosis and true pulmonary consumption can only be established 

 after cultures of the organism have been obtained. His experiments on 

 serum immunisation and serum therapy have as yet been unsuccessful. 



Bacillus acidificans presamigenes casei.t — C. Gorini describes an 

 organism which he has designated from its power of peptonising milk in 

 the presence of lactic acid ferments, B. acidificans presamigenes casei. It 

 is from 8-10 ft long and 2/x. broad. It is motile, spore-forming, poten- 

 tially anaerobic, and Gram staining. It grows well in the usual media, 

 and at ordinary temperature. It turns broth turbid, and forms a pellicle- 

 on the surface. On gelatin the colonies are white, liquefying, and round, 

 with irregular contour. 



Vibrio Cardii4— E. Klein confirms the statement of Hirschbrucli 

 and Schever, who found that the Drigalski-Conradi medium was useful 

 for isolating vibrios. By its aid the author isolated from the Cockle, 

 Cardium edule, a vibrio which liquefies gelatin, very much like V^ 

 Cholercc. The Cockle vibrio grows well in pepton- water and in broth. 

 It does not form indol. Litmus milk is reddened, but the milk remains 

 fluid for 8 days, coagulation only occurring later. V. Cardii is pathogenic- 

 to guinea-pigs. 



Bacillus violaceus Manilse.§ — P. G. Woolley isolated an organism 

 from three Carabaos which died suddenly but without noteworthy 

 symptoms. This organism, designated B. violaceus Manila, is from 

 1-1 '5 p long by 0'5 /u, broad. It stains easily, but not by Gram's 

 method. It does not, however, stain uniformly, showing clear spaces, 

 somewhat resembling spores ; it is motile, and possesses one polar flagel- 

 lum. It grows well on the usual media, and forms a blue pigment which 

 is soluble in alcohol, slightly soluble in water and ether, and insoluble 

 in chloroform It liquefies gelatin, is an essential aerobe, its optimum 

 temperature is 37° C, it is easily killed, and does not form spores. It is. 

 pathogenic to animals. 



Bacillus jasmino-cyaneus and Bacillus flavo-aromaticus.|| — Wv 

 Gaehtgens reports on two chromogenic bacteria which were met with in 

 typhoid stools. B. jasmino-cyaneus is an extremely motile rodlet, an 

 essential aerobe, and non-Gram-staining. It grows well at 24° and 

 37° C. It does not form spores or acid. Colonies of gelatin are iridescent,, 

 the medium becoming liquefied and stained of a dark green hue. The- 



• Centralbl. Bakt, l te Abt. Orig., xxxviii. (1905) p. 30. 



t Bendiconti R. Istit. Lombardo Sci. e Let., xxxvii. (1904^ pp. 939-45. 



X Centralbl. Bakt., l ,e Abt. Oris,'., xxxviii. (1905) pp. 173-4. 



§ Johns Hopkins Hosp. Bull., xvi. (1905) pp. 89-93. 



|| Centralbl. Bakt., l* e Abt. Orig., xxxviii. (1905) pp. 129-31. 



