480 Morphological Studies in the Life- Histories of Bacterid. 



enteric group have been worked out. On the contrary the sole aim has been 

 to show that simple binary fission is not the only method of reproduction of 

 these organisms, and that only a fraction of what appears to be a highly 

 complex life-cycle can be studied by cultivation in, or on, synthetic media. 



LIST OF KEFEKENCES. 



1. Hort and Ingram, "The Etiology of Typhus Fever," 'Brit. Med, Journ.,' May, 1914. 

 Hort and Ingram, "The Etiology of Typhus Fever," Brit. Med. Assoc. Meeting, 



Aberdeen, July, 1914. 

 Hort, " Typhus Fever," ' Brit. Med. Journ.,' April, 1915. 



Hort, Lakin and Benians, " Epidemic Cerebrospinal Fever. The Place of the 

 Meningococcus in its Etiology," ' Brit. Med. Journ., 1 March 27 and April 24, 1915. 



Hort, " Belationship of the Meningococcus of Weichselbaum to the True Infective Agent 

 in Epidemic Cerebrospinal Fever," 'Journ. Boy. Army Med. Corps,' February, 

 1916. 



Hort and Caulfeild, " Epidemic Cerebrospinal Fever. The Place of the Meningococcus 

 in its Etiology." ' Journ. Roy. Army Med. Corps,' September, 1916. 



2. Lohnis, "Life-Cycles of the Bacteria (Preliminary Communication)," 'Journ. of 



Agricultural Research,' July 31, 1916. 



3. Hort, " Studies in Pleomorphism in Typhus and other Diseases," ' Journ. Roy. 



Microscop. Soc.,' December, 1916. 



4. Benians, ' Brit. Med. Journ,' 1916. 



5. Horrocks, W. H, " Viability and Possible Variation of the Bacillus typhosus" 



' Journ. of the Roy. Army Med. Corps,' March, 1911. 



