BY DR. OSCAR KATZ. 211 



perhaps the commonest of all were colonies of bacilli which bore 

 a certain resemblance to those of the typhoid-bacilli, and which 

 are probably the same as Bacillus Neapolitanus (Emmerich) (1), 

 The potato-culture each time revealed their non-identity with 

 the Bacillus typhi ahdominalis. 



As a matter of curiosity rather than interest I may mention that 

 I once found, on a plate of gelatine, a non-liquefying colony of 

 slender bacilli which grew in the shape of a beautiful, greyish net 

 work of delicate, much elongated ramifications ; such colonies bear a 

 strong resemblance to those of Aficrococcus viticulosus (Fliigge- 

 Microorganismen 1886, p. 178); the mode of growth on an inclined 

 surface of nutrient gelatine is also similar. 



There was no opportunity for me to extend the search for 

 typhoid-bacilli to blood from typhoid-patients. During my stay 

 at the Hospital no well-marked cases of roseola-formation having 

 occurred, I preferred to leave this kind of examination insuspenso. 

 However, I tried some blood from a roseola-like spot with one 

 patient, but without success. 



My wish to obtain some exact data as to the disinfecting and 

 destroying powers of the commonly used disinfectants for typhoid 

 dejections — carbolic acid, carbolised chalk, sulphate of iron, and 

 some others ; and further to ascertain how the typhoid germs in 

 such dejections are acted upon by pure lime and slaked lime, the 

 efficiency of which substances on cultures of cholera-spii'ilia and 

 typhoid-bacilli has lately been experimentally proved by Liborius 

 (Zeitschrift f. Hygiene, Bd. II., Heft 1, 1887, pp. 15-51), has 

 equally to be put off to some later date. 



(1) Flugge, I.e., p. 270-272. It is much to be regretted that a pnre-culture 

 of this bacillus sent to me by Professor Flugge, with other cultures, did not 

 survive the voyage. It is to this microbe that Emmerich attributes or 

 attributed the cause of Asiatic-cholera. According to other observers, 

 however, this microbe is a common appearance in the contents of the 

 intestines of man and animals. 



