CONTENTS 



Page. 



MUSGRAVE, W. E. The Influence of Symbiosis 



Upon the Pathogenicity of Microorganisms 77 



HEISER, VICTOR G. Some Considerations with 

 Regard to the Cause of the Frequent Reap- 

 pearance of Cholera in the Philippine Islands 

 (with Statistics Beginning with the Outbreak 

 in 1902 to January 1, 1908) 89 



MARSHALL, HARRY T. Studies of Cholera... 107 



EDWARDS, RALPH T. A Biological Study of the 

 Water Supply of the Philippine Islands, with 

 a Description of a New Pathogenic Organism 121 



YERSIN, A., and VASSAL, J. J. Typhus Fever in 



Indo-China 131 



KITAJIMA, T. On "Habu" Venom and its Serum 



Therapy , 151 



RUEDIGER, E. H. Filtration Experiments with 



the Virus of Cattle Plague 165 



EDITORIAI 183 



REVIEWS 189 



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