IV 
Contents 
No. 3 (September). 
Drew, G. H. Some notes on Parasitic and other Diseases of Fish. 
(Plate II.). 
Aders, W. M. Herpetomonas aspongopi. (2 Figures.) 
Nuttall, George H. F. and Graham-Smith, G. S. Theileria parva: 
Attempts at Cultivation ........ 
Nuttall, George H. F. and Graham-Smith, G. S. Note on Attempts 
to Infect the Fox and the Jackal with Piroplasma canis 
Nuttall, George H. F. and Graham-Smith, G. S. Notes on 
Immunity in Canine Piroplasmosis ...... 
Nuttall, George H. F. and Hadwen, S. Further Experiments upon 
the Drug Treatment of Canine Piroplasmosis .... 
Nuttall, George H. F. and Hadwen, S. The Drug Treatment of 
Piroplasmosis in Cattle. (7 Charts.) ...... 
Mackinnon, Doris L. Observations on the Division of Spirochaetes. 
(2 Text Figures.). 
Mackinnon, Doris L. Observations on the Effect of Various 
Chemical Reagents on the Morphology of Spirochaetes. (4 Text 
Figures.) ........... 
Mackinnon, Doris L. Note on two new Flagellate Parasites in 
Fleas— Herpetomonas ctenophthalmi , n. sp., and Crithidia hystri- 
chopsyllae, n. sp. (Plate III.) ....... 
McCoy, George W. and Mitzmain, Maurice B. The Regional 
Distribution of Fleas on Rodents ...... 
Petrie, G. F. and Avari, C. R. On the Seasonal Prevalence of 
Trypanosoma lewisi in Mas rattus and in Mas decumanus and its 
Relation to the Mechanism of Transmission of the Infection 
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