226 



Presents. 



[Jan. 23, 



observed react witli typhoid serum ; none of them react with the 

 B. coli serum. 



15. Of the B. coli varieties hitherto proved, some do not react with 

 one sample of B. coli serum. 



16. The agreement in action of the typhoid bacilli points to the use 

 of the method for diagnostic purposes. Given a young culture and 

 typhoid serum, diagnosis can be made in a few minutes. 



17. As shown by serum experiment, the variation within the 

 B. coli group is greater than that of B. typhi races. 



18. By the method described, more delicate changes can be observed 

 than with such methods as plate cultivations, and the fallacies thereof 

 are. avoided. 



19. A vibrio and a vibrio serum which will give a "complete 

 reaction " in vitro will also give a positive result in " Pfeiffer's reac- 

 tion " {e.g., V. Iwanoffi and V. Berolinensis with cholera serum). 



20. It is not worth while performing Pfeiffer's test unless a " com- 

 plete reaction " has been obtained in vitro. 



21. In the method described, the whole series of changes, if any, 

 are before the eye the whole time. In Pfeiffer's method the changes 

 can only be seen by removing samples from their hiding place in the 

 guinea-pig's peritoneal cavity. The extent of possible fallacy from 

 using the peritoneal fluid of a living animal is not yet defined. Pro- 

 fessor Pfeiffer himself admits that the animals vary to some extent 

 according to their condition of health. 



Dr. Klein described a new pathogenic anaerobic bacillus in man — 

 Bacillus enteritidis sporogenes, an account of which is published in 

 ' Centralblatt fur Bakteriologie.' 



Presents, January 23, 1896. 



Transactions. 



Beziers: — Societe d'lDtude des Sciences Naturelles. Bulletin. 



Vol. XVII. 8vo. Beziers 1895. The Society. 



Bordeaux : — Societe des Sciences Physiques et Naturelles. Me- 

 moir es. Tome V. 8vo. Bordeaux 1895. The Society. 

 Bristol: — University College. Meeting of the Governors and 



Report of Council. 1894-95. 8vo. [Bristol]. The College. 

 Dublin : — Boyal Irish Academy. Transactions. Vol. XXX. 



Parts 15—17. 4to. Dublin 1895 ; Proceedings. Vol. III. 



No. 4. 8vo. Dublin 1895 ; List of the Members. 1895. 8vo. 



Dublin. The Academy. 



Freiburg i. B. : — Naturforsehende Gesellschaft. Berichte. Bd. 



IX. Heft 1—3. Svo. Freiburg i. B. 1894-95. The Society. 



