vidual idiosyncrasies and conditions whether the 

 use of tobacco is beneficial to him or otherwise. 



REFERENCES 



Lancet. London, 1906. Vol. I, p. 984. The 

 germ-destroying properties of tobacco. 



ARNOLD, M. B. On the effects of the Exposure of 

 Tobacco Smoke on the growth of pathogenic 

 micro-organisms. Lancet. London, 1907. Vol. 

 I, p. 1220. 



MURRAY, J. C. Smoking; when injurious, when 

 innocuous, when beneficial. London, 1871. 



LEZARS, I. The use and abuse of Tobacco. Phila- 

 delphia, 1883. 



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